Библиотека института биофизики СО РАН

Главная

Базы данных

Труды сотрудников ИБФ СО РАН - результаты поиска

Вид поиска

Каталог книг и продолжающихся изданий библиотеки Института биофизики СО РАН

Иностранные журналы библиотеки Института биофизики СО РАН

Отечественные журналы библиотеки Института биофизики СО РАН

Каталог диссертаций ИБФ СО РАН

Труды сотрудников ИБФ СО РАН

Область поиска

в найденном

Найдено в других БД:

Каталог книг и продолжающихся изданий библиотеки Института биофизики СО РАН (29)

Иностранные журналы библиотеки Института биофизики СО РАН (1)

Формат представления найденных документов:
полный	информационный	краткий

Отсортировать найденные документы по:
автору	заглавию	году издания	типу документа

Поисковый запрос: (<.>K=Water<.>)

Общее количество найденных документов : 475
Показаны документы с 1 по 20

1-20 21-40 41-60 61-80 81-100 101-120

A long-term study of radionuclide concentrations in mushrooms in the 30-km zone around the Mining-and-Chemical Combine (Russia) / D. Dementyev, A. Bolsunovsky // Isot. Environ. Health Stud., DOI 10.1080/10256016.2020.1718124. - Cited References:25 . - ISSN 1025-6016. - ISSN 1477-2639

РУБ Chemistry, Inorganic & Nuclear + Environmental Sciences
Рубрики:
CS-137
   FOREST
   RADIOCESIUM
   FUNGI
   ACCUMULATION
   ACCIDENT
Кл.слова (ненормированные):
Bioindicators -- biological half-life -- cesium-137 -- effective half-life -- environmental pollution -- isotope ecology -- mushrooms -- nuclear reactors -- radionuclide concentration -- transfer factor
Аннотация: Cs-137 concentrations were measured in mushrooms in an area affected by radioactive discharges of the Mining-and-Chemical Combine (MCC) (Rosatom, Russia) in 2002-2017. The sources of radionuclides in the study sites were global fallouts and waterborne and airborne radioactive discharges of the MCC. The mushroom species Suillus granulatus and S. luteus showed the highest Cs-137 concentrations (140-7100 Bq kg(-1)) for this area. Over the entire monitoring period, no significant change in Cs-137 concentration was observed in the Suillus spp. samples collected from the sites with the aerial deposition of radionuclides. In the floodplain site with the radionuclide deposition from water and air, a significant decrease in the average Cs-137 concentration was observed in the period between 2004 and 2017: a three-fold decrease in Suillus spp. and a nine-fold decrease in Lactarius deliciosus. The effective half-lives of Cs-137 in fruiting bodies of the mushrooms L. deliciosus and Suillus spp. in this site were 3.6 +/- 0.6 and 9.2 +/- 2.7 years, respectively.

WOS
Держатели документа:
Russian Acad Sci, Fed Res Ctr, Inst Biophys, Siberian Branch,Krasnoyarsk Sci Ctr, Krasnoyarsk, Russia.

Доп.точки доступа:
Dementyev, Dmitry; Bolsunovsky, Alexander

Найти похожие

Buckwheat-enriched diet alleviates bisphenol A mediated oxidative stress via modulation of sirtuin 1 and antioxidant status in experimental rats / S. Pande, R. Ranjan, M. Ryazanova [et al.] // Food Chem. - 2022. - Vol. 373. - Ст. 131507, DOI 10.1016/j.foodchem.2021.131507. - Cited References:36. - The research was supported by the Ministry of Science and Higher Education of the Russian Federation (Grant no. FSRZ-2020-0006) and Russian Ministry of Education, Post-Doctoral Program of Project "5-100" [Grant No. M 2.2.3]. Authors profusely thank R. Sabirzyanov and I.A. Denisov for the needful in the arrangement of ultrapure BPA. . - ISSN 0308-8146. - ISSN 1873-7072

РУБ Chemistry, Applied + Food Science & Technology + Nutrition & Dietetics
Рубрики:
TRANSCRIPTION
   TOXICITY
   EXTRACT
   FIBER
Кл.слова (ненормированные):
Sirtuin1 -- Buckwheat -- Bisphenol A -- Dietary intervention -- Oxidative -- stress -- Male Wistar r a t s
Аннотация: Present study investigated effect of dietary buckwheat in alleviating bisphenol A (BPA) mediated oxidative stress, concomitant sirtuin1 levels in serum, stomach, and liver of rats. Experimental group A and B ingested standard diet, C and D consumed buckwheat (30%); group A and C drank normal water, B and C had BPA contamination (10 mg L 1). Sirtuin1 mean B/A ratio nearing unity in all tissues reveals inertness of BPA towards sirtuin1. Dietary buckwheat improved sirtuin1 levels both in normal (mean C/A ratio of serum, 1.65; liver, 1.24; stomach, 1.78) and BPA fed state (mean D/B ratio of serum, 1.9; liver, 1.26; stomach, 1.75). Buckwheat augmented antioxidant status in BPA fed rats as seen in mean D/B ratio of serum (catalase, 2.4; glutathione reductase (GR), 1.33; Thiols, 1.2), liver (catalase, 2; GR, 2.5; Thiols, 1.36) and stomach (catalase, 1.31; GR, 1.5; Thiols, 1.33). Therefore, buckwheat counters BPA-led oxidative stress and modulates sirtuin1.

WOS
Держатели документа:
Siberian Fed Univ, Inst Fundamental Biol & Biotechnol, Dept Biophys, Lab Bioluminescent Biotechnol, Svobodny Prospect 79, Krasnoyarsk 660041, Russia.
Krasnoyarsk State Med Univ, Res Inst Mol Med & Pathobiochem, P Zheleznyaka 1, Krasnoyarsk 660022, Russia.
Res Ctr Neurol, Lab Expt Brain Cytol, Moscow, Russia.
Fed Res Ctr, Inst Biophys SB RAS, Krasnoyarsk Sci Ctr SB RAS, Akad Gorodok 50-50, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Pande, Shubhra; Ranjan, Rajeev; Ryazanova, Maria; Shuvaev, Anton N.; Salmina, Alla B.; Kratasyuk, Valentina A.; Ministry of Science and Higher Education of the Russian Federation [FSRZ-2020-0006]; Russian Ministry of Education, Post-Doctoral Program of Project "5-100" [M 2.2.3]

Найти похожие

The effect of salinity on the grazing rate and survival of Daphnia magna females adapted to different salinities / E. S. Zadereev, T. S. Lopatina, S. D. Ovchinnikov [et al.] // Aquat. Ecol. - 2022, DOI 10.1007/s10452-021-09941-7. - Cited References:47. - The reported study was funded by the Krasnoyarsk Regional Fund for supporting scientific and technical activities, the Krasnoyarsk Krai Government and the Russian Foundation for Basic Research, project number 19-44-240010. We are grateful to professional English translator Elena Krasova for language corrections. . - Article in press. - ISSN 1386-2588. - ISSN 1573-5125

РУБ Ecology + Limnology + Marine & Freshwater Biology
Рубрики:
FEEDING-BEHAVIOR
PHYTOPLANKTON CONTROL
SPECIES COMPOSITION
Кл.слова (ненормированные):
Salinity -- Grazing -- Phytoplankton -- Adaptation -- Daphnia
Аннотация: The cladoceran Daphnia magna inhabits lakes with salinities up to 10 g L-1. We compared the effects of different salinities (up to 9 g L-1) on the survival, specific grazing rate, and size selective feeding of Daphnia females adapted to fresh or saline waters (3-4 g L-1). The freshwater population was more sensitive to high salinity (LC50 = 5.3 g L-1), while the survival of the saline water population also decreased in fresh water. Freshwater population demonstrated a higher grazing rate in fresh water, while the saline water population had a higher grazing rate at the salinity above 3 g L-1. A decrease in the grazing rate of the freshwater population was observed at the salinity above 4-5 g L-1. Populations differed in food selectivity. The saline water population consumed particles of larger sizes than the freshwater population. The average size of phytoplankton particles grazed in fresh water was larger than in saline water. This size selective salinity-dependent grazing may be related to the dependence of the feeding efficiency of cladocerans on the viscosity of water and size of phytoplankton particles. Our results indicate that Daphnia populations adapted to a certain salinity can temporarily lose the ability to control phytoplankton because of salinity fluctuations.

WOS
Держатели документа:
Russian Acad Sci, Fed Res Ctr, Krasnoyarsk Sci Ctr, Inst Biophys, 50-50 Akademgorodok, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, 79 Svobodniy Ave, Krasnoyarsk 660041, Russia.
Khakassky State Nat Reserve, POB 189, Abakan 655017, Russia.

Доп.точки доступа:
Zadereev, E. S.; Lopatina, T. S.; Ovchinnikov, S. D.; Oskina, N. A.; Drobotov, A., V; Tolomeev, A. P.; Krasnoyarsk Regional Fund; Krasnoyarsk Krai Government; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [19-44-240010]

Найти похожие

Comparative Assessment of the Content of Transition Metals (Cu, Zn, Mn, Pb, and Cd) and Radiocesium (Cs-137) in Pike (Esox lucius) and Burbot (Lota lota) of the Yenisei River / T. A. Zotina, O. V. Anishchenko, E. A. Trofimova, D. V. Dementiev // Contemp. Probl. Ecol. - 2022. - Vol. 15, Is. 1. - P91-99, DOI 10.1134/S1995425522010115. - Cited References:36. - This work was supported by the Russian Foundation for Basic Research, grant no. 18-44-240003, and the Government of Krasnoyarsk krai, together with the Krasnoyarsk Regional Fund for Support of Scientific and Technical Activity, grant no. 20-44-240004. . - ISSN 1995-4255. - ISSN 1995-4263

РУБ Ecology
Рубрики:
FRESH-WATER FISH
   NORTHERN PIKE
   HEAVY-METALS
   BRAMA L.
   FOOD-WEB
   SIZE
Кл.слова (ненормированные):
piscivorous fish -- toxic metals -- body length -- body weight -- size effect
Аннотация: The trophic position of fish is one of the most important factors controlling the accumulation of potentially toxic elements and compounds in fish tissues, primarily via the spectrum of fish nutrition. In this study, the content of potentially toxic transition metals (Cu, Zn, Mn, Pb, and Cd) and radiocesium (Cs-137) in the edible tissues (muscles and liver) of two representatives of the fish-eating ichthyofauna of the Yenisei River, northern pike (Esox lucius) and burbot (Lota lota), have been comparatively studied relatively to the size of the fish. A significant decrease in the content of radiocesium and zinc in the muscles of pike and zinc in the liver of pike with an increase in body size has been recorded in juvenile pikes with a body weight (W) of less than 0.35 kg. For larger sexually mature pikes, no significant size dependences of the accumulation of metals in tissues are found. A positive correlation is found between the content of Cs-137, Cu, Zn, and Mn in muscles and the size of burbot in the W range from 0.42 to 1.62 kg. The tissues of burbots and pikes of the same size significantly (p < 0.05) differ in the concentration of metals in their tissues: concentrations of Zn and Mn are 1.6-2.2 times higher in the muscle of burbot; the concentration of Pb is 1.8 times higher in muscle of pike; Cu is twice as high in the liver of burbot; and Zn and Mn are 4.7 and 1.6 times higher in the liver of pike, respectively. These differences may be due to the different food spectra of pike and burbot. Concentrations of Cu, Zn, and Mn in the liver of pike are 3-7 times higher than in muscle; the concentration of Cu in the liver of burbot is 5 times higher than in muscle. Pb and Cd tend to be higher in liver than muscle for both fish species. Despite the revealed size dependences, the concentrations of potentially toxic metals and radiocesium in the muscles and liver of fish are below the permissible concentrations for food. These results can be used to assess environmental risks for the population consuming fish, as well as to plan for the long-term environmental monitoring of rivers using representatives of piscivorous fish.

WOS
Держатели документа:
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Inst Biophys, 50 Akademgorodok, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Fundamental Biol & Biotechnol, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Zotina, T. A.; Anishchenko, O., V; Trofimova, E. A.; Dementiev, D., V; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [18-44-240003]; Government of Krasnoyarsk krai; Krasnoyarsk Regional Fund for Support of Scientific and Technical Activity [20-44-240004]

Найти похожие

Chemical Modification of Films from Biosynthetic Poly-3-Hydroxybutyrate Aimed to Improvement of Their Surface Properties / A. N. Boyandin, A. A. Sukhanova, E. D. Nikolaeva, I. V. Nemtsev // Macromol. Sympos. - 2021. - Vol. 395, Is. 1. - Ст. 2000281, DOI 10.1002/masy.202000281 . - ISSN 1022-1360
Кл.слова (ненормированные):
biocompatibility -- polyhydroxyalkanoates -- polyhydroxybutyrate -- polymer modification -- Ammonia -- Biocompatibility -- Biopolymers -- Bromine compounds -- Cell culture -- Chemical modification -- Contact angle -- Free energy -- Hydrophilicity -- Reducing agents -- Sodium hydroxide -- Activated surfaces -- Amino-compounds -- Chemical reagents -- Mouse-fibroblasts -- Polar components -- Poly-3-hydroxybutyrate -- Surface free energy -- Water contact angle -- Polymer films
Аннотация: Films from biodegradable poly-3-hydroxybutyrate are treated with chemical reagents to improve their hydrophilicity and biocompatibility. Two approaches are tested: a single treatment with alkali, acids, oxidizing or reducing agents, and a step-by step treatment of the alkali pre-activated surface of polymer films with bromine water and amino-compounds (ammonia or triethylamine). The maximal level of hydrophilicity (the lowest water contact angle and the highest polar component of the surface free energy) is registered after a single treatment with NaOH and after the step-by-step treatment. These samples also showed the best adhesion of mouse fibroblasts of NIH 3T3 line on the film surface. So, the proposed methods can be used to enhance hydropilicity and biocompatibility of biopolymer surface. © 2021 Wiley-VCH GmbH

Scopus
Держатели документа:
Reshetnev Siberian State University of Science and Technology, 31 Krasnoyarsky Rabochy Av., Krasnoyarsk, 660037, Russian Federation
Institute of Biophysics of the Siberian Branch of the Russian Academy of Sciences, Federal Research Center “Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences”, 50, build. 50, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
International Scientific Centre for Studying Extreme States of an Organism, Federal Research Center “Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences”, 50, build.12/2, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Federal Research Center “Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences”, 50 Akademgorodok, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Boyandin, A. N.; Sukhanova, A. A.; Nikolaeva, E. D.; Nemtsev, I. V.

Найти похожие

Constructing Slow-Release Metribuzin Formulations by Co-extrusion of the Pesticide with Poly-?-Caprolactone / A. N. Boyandin, E. A. Kazantseva // Macromol. Sympos. - 2021. - Vol. 395, Is. 1. - Ст. 2000283, DOI 10.1002/masy.202000283 . - ISSN 1022-1360
Кл.слова (ненормированные):
extrusion -- herbicides -- long-term -- pesticides -- polycaprolactone -- Biodegradable polymers -- Biodegradation -- Degradation -- Extrusion -- Melting -- Soils -- Weed control -- Biodegradable polyesters -- Caprolactone -- Degradation rate -- Long-term release -- Low cost methods -- Pesticide formulations -- Soil applications -- Soil degradation -- Herbicides
Аннотация: A simple and low-cost method of obtaining slow-release pesticide formulations is proposed by co-extrusion of a herbicide metribuzin with a low-melting biodegradable polyester poly-?-caprolactone, at a temperature above the melting points of both components. Formulations containing 10%, 20%, and 40% herbicide are prepared. Metribuzin release in water during 7 days of exposition reached 81% from the formulations with the 10% loading and 96% from the specimens with the 40% herbicide loading. Biodegradation and pesticide release from the polymer constructs are studied in the model soil for 14 weeks. Degradation rates of the specimens increased with an increase in pesticide content: between 9% for the 10%-loaded specimen and 20% for the 40%-loaded specimen over 14 weeks. The release of metribuzin from the specimens with the 10–20% and 40% loadings reached 37–38% and 55%, respectively; thus, taking into account soil degradation of the herbicide, the herbicide content in soil reached 23–25% and 33%, respectively, of the initially loaded into the polymer matrix. The used approach is promising to obtain long-term release formulations for soil application. © 2021 Wiley-VCH GmbH

Scopus
Держатели документа:
Institute of Biophysics of the Siberian Branch of the Russian Academy of Sciences, Federal Research Center “Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences”, 50/50 Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, 79 Svobodny pr., Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Boyandin, A. N.; Kazantseva, E. A.

Найти похожие

Polymer Films of Poly-3-hydroxybutyrate Synthesized by Cupriavidus necator from Different Carbon Sources / E. Shishatskaya, I. Nemtsev, A. Lukyanenko [et al.] // J. Polym. Environ. - 2021. - Vol. 29, Is. 3. - P837-850, DOI 10.1007/s10924-020-01924-3 . - ISSN 1566-2543
Кл.слова (ненормированные):
Degradable P(3HB) -- Films -- NIH 3T3 fibroblasts -- Properties -- Structure -- Various carbon substrates -- Carbon -- Carbon films -- Cell culture -- Chlorine containing polymers -- Crystallinity -- Glucose -- Glycerol -- Scaffolds (biology) -- Semiconducting films -- Beneficial effects -- Cell scaffold -- Degree of crystallinity -- Different carbon sources -- Low crystallinity -- Poly-3-hydroxybutyrate -- Temperature characteristic -- Weight Properties -- Polymer films -- Bacteria (microorganisms) -- bacterium B -- Cupriavidus necator
Аннотация: Films were prepared from 2% solutions of biodegradable poly-3-hydroxybutyrate [P(3HB)] and investigated. The polymer was synthesized by the Cupriavidus necator B-10646 bacterium cultivated using various carbon sources (glucose and glycerol of different degrees of purity, containing 0.3 to 17.93% impurities). Glycerol as the substrate influenced molecular-weight properties and crystallinity of the polymer without affecting its temperature characteristics. The P(3HB) specimens synthesized from glycerol had reduced Mw (300–400 kDa) and degree of crystallinity (50–55%) compared to the specimens synthesized from glucose (860 kDa and 76%, respectively). The low-crystallinity P(3HB) specimens, regardless of the degree of purity of glycerol, produced a beneficial effect on the properties of polymer films, which had a better developed folded surface and increased hydrophilicity. The values of the highest roughness (Ra) of the films synthesized from glycerol were 1.8 to 4.0 times lower and the water angles 1.4–1.6 times smaller compared to the films synthesized from glucose (71.75 nm and 87.4°, respectively). Those films performed better as cell scaffolds: the number of viable NIH fibroblasts was 1.7–1.9 times higher than on polystyrene (control) or films of P(3HB) synthesized from glucose. © 2020, Springer Science+Business Media, LLC, part of Springer Nature.

Scopus
Держатели документа:
Siberian Federal University, 79 Svobodnyi Av., Krasnoyarsk, 660041, Russian Federation
Institute of Biophysics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, Krasnoyarsk, Russian Federation
L.V. Kirenskii Institute of Physics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Shishatskaya, E.; Nemtsev, I.; Lukyanenko, A.; Vasiliev, A.; Kiselev, E.; Sukovatyi, A.; Volova, T.

Найти похожие

РУБ Environmental Sciences
Рубрики:
HEAVY-METALS
   BRYOPHYTES
   CONTAMINATION
   BIOMASS
   PLANTS
   CS-137
   TOOL
Кл.слова (ненормированные):
Radiocesium -- Effective half-life -- Correlation with discharge -- Epiphytic -- biofilm -- Biomonitor -- Bioindicator
Аннотация: Long-term trends of artificial radionuclides, from 2003 to 2018, in two abundant species of macrophytes, shining pondweed, Potamogeton lucens, and water moss, Fontinalis antipyretica, have been analyzed to estimate the indicative reliability of these two species as biomonitors of radioactive contamination in a river system and to quantify the decrease in the content of artificial radionuclides in the Yenisei River. Time-dependent trends of artificial radionuclides in the biomass of these species were similar, resulting in estimates of effective half-lives for Mn-54, Co-58, Co-60, Zn-65, Cs-137, and Eu-152 similar for both species. Concentrations of artificial radionuclides in biomass of shining pondweed and water moss correlated with annual discharges of the radionuclides to the Yenisei at different levels of significance, and the strongest (R-2 > 0.7) positive correlation (p < 0.05) was obtained for Co-60, Zn-65, and Eu-152. Concentrations of Co-60, Cs-137, and Eu-152 in water moss were 2-7.5 times higher than in shining pondweed, and considerable percentages of those isotopes were recorded in extracellular particulate matter, which was largely represented by epiphytic diatoms. Higher concentrations of artificial radionuclides in the biomass of water moss can be considered as an advantage of water moss as a monitor of radioactive contamination of the Yenisei, while shining pondweed is more useful for estimation of annual deposits of radionuclides in vegetation of the Yenisei and spatial transfer of radionuclides downstream of the discharge site. Despite differences in concentrations of artificial radionuclides, both species can be considered as reliable indicators of radioactive contamination of the river on a long-term scale.

WOS
Держатели документа:
RAS, Krasnoyarsk Sci Ctr SB, Fed Res Ctr, Inst Biophys, 50-50 Akademgorodok, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Fundamental Biol & Biotechnol, 79 Svobodny Ave, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Zotina, Tatiana; Dementyev, Dmitry; Alexandrova, Yuliyana; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR); Krasnoyarsk Regional Scientific Foundation [18-44-240003]

Найти похожие

Zooplankton carcasses stimulate microbial turnover of allochthonous particulate organic matter / D. Neubauer, O. Kolmakova, J. Woodhouse [et al.] // ISME J. - 2021, DOI 10.1038/s41396-020-00883-w. - Cited References:83. - Open Access funding enabled and organized by Projekt DEAL. . - Article in press. - ISSN 1751-7362. - ISSN 1751-7370

РУБ Ecology + Microbiology
Рубрики:
FRESH-WATER
   SEASONAL-CHANGES
   CARBON
   LAKE
   DECOMPOSITION
   DEGRADATION
Аннотация: Carbon turnover in aquatic environments is dependent on biochemical properties of organic matter (OM) and its degradability by the surrounding microbial community. Non-additive interactive effects represent a mechanism where the degradation of biochemically persistent OM is stimulated by the provision of bioavailable OM to the degrading microbial community. Whilst this is well established in terrestrial systems, whether it occurs in aquatic ecosystems remains subject to debate. We hypothesised that OM from zooplankton carcasses can stimulate the degradation of biochemically persistent leaf material, and that this effect is influenced by the daphnia:leaf OM ratio and the complexity of the degrading microbial community. Fresh Daphnia magna carcasses and C-13-labelled maize leaves (Zea mays) were incubated at different ratios (1:1, 1:3 and 1:5) alongside either a complex microbial community (50 mu m) or solely bacteria (0.8 mu m). C-13 stable-isotope measurements of CO2 analyses were combined with phospholipid fatty acids (PLFA) analysis and DNA sequencing to link metabolic activities, biomass and taxonomic composition of the microbial community. Our experiments indicated a significantly higher respiration of leaf-derived C when daphnia-derived OM was most abundant (i.e. daphnia:leaf OM ratio of 1:1). This process was stronger in a complex microbial community, including eukaryotic microorganisms, than a solely bacterial community. We concluded that non-additive interactive effects were a function of increased C-N chemodiversity and microbial complexity, with the highest net respiration to be expected when chemodiversity is high and the degrading community complex. This study indicates that identifying the interactions and processes of OM degradation is one important key for a deeper understanding of aquatic and thus global carbon cycle.

WOS
Держатели документа:
Leibniz Inst Freshwater Ecol & Inland Fisheries I, Dept Expt Limnol, D-16775 Stechlin, Germany.
Potsdam Univ, Inst Biochem & Biol, D-14476 Potsdam, Germany.
RAS, Inst Biophys SB, Fed Res Ctr, Krasnoyarsk Sci Ctr, Krasnoyarsk, Russia.
Siberian Fed Univ, Inst Fundamental Biol & Biotechnol, Krasnoyarsk, Russia.
Helmholtz Ctr Potsdam, Sect Organ Geochem 32, GFZ German Res Ctr Geosci, D-14473 Potsdam, Germany.
Leibniz Inst Freshwater Ecol & Inland Fisheries I, Dept Chem Analyt & Biogeochem, Muggelseedamm 310, D-12587 Berlin, Germany.

Доп.точки доступа:
Neubauer, Darshan; Kolmakova, Olesya; Woodhouse, Jason; Taube, Robert; Mangelsdorf, Kai; Gladyshev, Michail; Premke, Katrin; Grossart, Hans-Peter; Projekt DEAL

Найти похожие

10.

Threshold concentrations of the road salt for adverse effects on females and resting eggs of cladoceran Moina macrocopa / T. Lopatina, O. Anishchenko, N. Oskina, E. Zadereev // Aquat. Ecol. - 2021, DOI 10.1007/s10452-021-09830-z. - Cited References:45. - The reported study was funded by the Russian Foundation for Basic Research, the Krasnoyarsk Krai Government, and the Krasnoyarsk Regional Fund for supporting scientific and technical activities, project number 19-44-240014. We are grateful to two anonymous reviewers for the valuable comments and suggestions and to Elena Krasova for linguistic check and improvements. . - Article in press. - ISSN 1386-2588. - ISSN 1573-5125

РУБ Ecology + Limnology + Marine & Freshwater Biology

Кл.слова (ненормированные):
Cladocera -- Resting eggs -- Road salt -- Salinity -- Aquatic ecosystems
Аннотация: The salinization of freshwaters due to the use of deicing road salts is a serious anthropogenic threat. We investigated the effects of the road deicer, which is mostly composed (ca. 70%) of NaCl, on the life cycle parameters of the cladoceran Moina macrocopa in acute and chronic toxicity tests and on the hatching success of resting eggs exposed to sediments contaminated with the road salt. The negative effects of the road salt on survival and life cycle parameters of animals were observed at concentrations above 5 g L-1. The 6-month exposure of resting eggs to contaminated sediments had a consistent but relatively weak effect on the postexposure hatching of resting eggs. Experiments demonstrated that the concentration of the deicer in the top water layer in the water-sediment systems is more important for the hatching success of resting eggs than the salt content in the sediment. Only 2.2 +/- 1.9% of resting eggs hatched when the deicer content in the top water layer was equal to 12 g L-1. Lethal effects on hatchlings were observed starting from the deicer content in the water equal to 1 g L-1, and 97.0 +/- 0.8% of hatchlings were dead at the deicer content in the water equal to 5 g L-1. Thus, the resilience of resting eggs to the contaminated sediments can ensure the replenishment of the population from the egg bank after the salinity disturbance is diminished but the negative effects of the elevated salt content in surface waters on active population will be manifested at lower salinities.

WOS
Держатели документа:
Russian Acad Sci, Fed Res Ctr, Krasnoyarsk Sci Ctr, Inst Biophys,Siberian Branch, 50-50 Akademgorodok, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, 79 Svobodniy Ave, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Lopatina, Tatiana; Anishchenko, Olesya; Oskina, Natalia; Zadereev, Egor; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR); Krasnoyarsk Krai Government; Krasnoyarsk Regional Fund [19-44-240014]

Найти похожие

11.

Chemical Modification of Films from Biosynthetic Poly-3-Hydroxybutyrate Aimed to Improvement of Their Surface Properties / A. N. Boyandin, A. A. Sukhanova, E. D. Nikolaeva, I. V. Nemtsev // Macromol. Symp. - 2021. - Vol. 395: 4th International Conference on Progress on Polymers and Composites (NOV 26-28, 2020, ELECTR NETWORK), Is. 1. - Ст. 2000281, DOI 10.1002/masy.202000281. - Cited References:11. - This work was carried out by the team of the scientific laboratory "Smart Materials and Structures" within the state assignment of the Ministry of Science and Higher Education of the Russian Federation for the implementation of the project "Development of multifunctional smart materials and structures based on modified polymer composite materials capable to function in extreme conditions" (No. FEFE-2020-0015). The surface of the samples was investigated using a scanning electron microscope Hitachi TM3000 in the Krasnoyarsk Regional Center of Research Equipment of Federal Research Center "Krasnoyarsk Science Center SB RAS". . - ISSN 1022-1360. - ISSN 1521-3900

РУБ Polymer Science

Кл.слова (ненормированные):
biocompatibility -- polyhydroxyalkanoates -- polyhydroxybutyrate -- polymer -- modification
Аннотация: Films from biodegradable poly-3-hydroxybutyrate are treated with chemical reagents to improve their hydrophilicity and biocompatibility. Two approaches are tested: a single treatment with alkali, acids, oxidizing or reducing agents, and a step-by step treatment of the alkali pre-activated surface of polymer films with bromine water and amino-compounds (ammonia or triethylamine). The maximal level of hydrophilicity (the lowest water contact angle and the highest polar component of the surface free energy) is registered after a single treatment with NaOH and after the step-by-step treatment. These samples also showed the best adhesion of mouse fibroblasts of NIH 3T3 line on the film surface. So, the proposed methods can be used to enhance hydropilicity and biocompatibility of biopolymer surface.

WOS
Держатели документа:
Reshetnev Siberian State Univ Sci & Technol, 31 Krasnoyarsky Rabochy Av, Krasnoyarsk 660037, Russia.
Russian Acad Sci, Siberian Branch, Fed Res Ctr, Inst Biophys,Krasnoyarsk Sci Ctr, 50,Build 50, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Siberian Branch, Int Sci Ctr Studying Extreme States Organism, Fed Res Ctr,Krasnoyarsk Sci Ctr, 50,Build 12-2, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Fed Res Ctr, 50 Akademgorodok, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Boyandin, Anatoly Nikolayevich; Sukhanova, Anna Alekseevna; Nikolaeva, Elena Dmitrievna; Nemtsev, Ivan Vasilievich; Ministry of Science and Higher Education of the Russian Federation [FEFE-2020-0015]

Найти похожие

12.

Structural Features of Scales of Baikal Grayling Thymallus baicalensis under Conditions of an Altered Hydrological Regime / I. V. Zuev, P. Y. Andrushchenko, S. M. Chuprov, T. A. Zotina // Inland Water Biol. - 2021. - Vol. 14, Is. 1. - P60-66, DOI 10.1134/S1995082920060176 . - ISSN 1995-0829
Кл.слова (ненормированные):
growth rate -- migration -- number of circuli -- water temperature -- Thymallus -- Thymallus thymallus
Аннотация: Abstract: The number of circuli between annual scale rings of grayling Thymallus baicalensis Dybowski, 1874 sampled in the Yenisei River in the downstream section of the Krasnoyarsk Hydroelectric Power Station, which does not freeze in winter, have been investigated and compared with populations of grayling from large tributaries of the Yenisei River (Amyl, Kan, Nizhnyaya Tunguska, and Bolshaya Kheta). It has been shown that graylings inhabiting the Yenisei River have a significantly higher (1.5–2.0 times, p < 0.01) number of circuli in the second, third, and fourth annual rings of the scales than in the populations from the tributaries, which corresponds to a higher growth rate of the grayling population in the Yenisei River. An assumption is made about the transition of graylings inhabiting the Yenisei River channel in the lower reaches of the hydroelectric station to a sedentary lifestyle. © 2021, Pleiades Publishing, Ltd.

Scopus
Держатели документа:
Siberian Federal University, Krasnoyarsk, Russian Federation
Institute of Biophysics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Zuev, I. V.; Andrushchenko, P. Y.; Chuprov, S. M.; Zotina, T. A.

Найти похожие

13.

Constructing Slow-Release Metribuzin Formulations by Co-extrusion of the Pesticide with Poly-epsilon-Caprolactone / A. N. Boyandin, E. A. Kazantseva // Macromol. Symp. - 2021. - Vol. 395: 4th International Conference on Progress on Polymers and Composites (NOV 26-28, 2020, ELECTR NETWORK), Is. 1. - Ст. 2000283, DOI 10.1002/masy.202000283. - Cited References:6. - This study was financially supported by Project "Agropreparations of the new generation: a strategy of construction and realization" (Agreement No 074-02-2018-328) in accordance with Resolution No 220 of the Government of the Russian Federation of April 9, 2010, "On measures designed to attract leading scientists to the Russian institutions of higher learning". . - ISSN 1022-1360. - ISSN 1521-3900

РУБ Polymer Science

Кл.слова (ненормированные):
extrusion -- herbicides -- long‐ -- term -- pesticides -- polycaprolactone
Аннотация: A simple and low-cost method of obtaining slow-release pesticide formulations is proposed by co-extrusion of a herbicide metribuzin with a low-melting biodegradable polyester poly-epsilon-caprolactone, at a temperature above the melting points of both components. Formulations containing 10%, 20%, and 40% herbicide are prepared. Metribuzin release in water during 7 days of exposition reached 81% from the formulations with the 10% loading and 96% from the specimens with the 40% herbicide loading. Biodegradation and pesticide release from the polymer constructs are studied in the model soil for 14 weeks. Degradation rates of the specimens increased with an increase in pesticide content: between 9% for the 10%-loaded specimen and 20% for the 40%-loaded specimen over 14 weeks. The release of metribuzin from the specimens with the 10-20% and 40% loadings reached 37-38% and 55%, respectively; thus, taking into account soil degradation of the herbicide, the herbicide content in soil reached 23-25% and 33%, respectively, of the initially loaded into the polymer matrix. The used approach is promising to obtain long-term release formulations for soil application.

WOS
Держатели документа:
Russian Acad Sci, Krasnoyarsk Sci Ctr, Inst Biophys, Siberian Branch,Fed Res Ctr, 50-50 Akademgorodok, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, 79 Svobodny Pr, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Boyandin, Anatoly Nikolayevich; Kazantseva, Eugenia Andreevna; Government of the Russian Federation [220, 074-02-2018-328]

Найти похожие

14.

Winter atmospheric nutrient and pollutant deposition on Western Sayan Mountain lakes (Siberia) / D. Diaz-De-Quijano, A. Vladimirovich Ageev, E. Anatolevna Ivanova, O. Valerevna Anishchenko // Biogeosciences. - 2021. - Vol. 18, Is. 5. - P1601-1618, DOI 10.5194/bg-18-1601-2021 . - ISSN 1726-4170
Аннотация: The world map of anthropogenic atmospheric nitrogen deposition and its effects on natural ecosystems is not described with equal precision everywhere. In this paper, we report atmospheric nutrient, sulfate and spheroidal carbonaceous particle (SCP) deposition rates, based on snowpack analyses of a formerly unexplored Siberian mountain region. Then, we discuss their potential effects on lake phytoplankton biomass limitation. We estimate that the nutrient depositions observed in the late-season snowpack (4016 mgNO3-Nm2 and 0.580.13 mg TP-Pm2; TP for total phosphorous) would correspond to yearly depositions lower than 11971 mgNO3-Nm2 yr1 and higher than 1.710.91 mg TP-Pm2 yr1. These yearly deposition estimates would approximately fit the predictions of global deposition models and correspond to the very low nutrient deposition range, although they are still higher than world background values. In spite of the fact that such a low atmospheric nitrogen deposition rate would be enough to induce nitrogen limitation in unproductive mountain lakes, phosphorus deposition was also extremely low, and the resulting lake water N: P ratio was unaffected by atmospheric nutrient deposition. In the end, the studied lakes' phytoplankton appeared to be split between phosphorus and nitrogen limitation. We conclude that these pristine lakes are fragile sensitive systems exposed to the predicted climate warming, increased winter precipitation, enhanced forest fires and shifts in anthropogenic nitrogen emissions that could finally couple their water chemistry to that of atmospheric nutrient deposition and unlock temperature-inhibited responses of phytoplankton to nutrient shifts. © Author(s) 2021. This work is distributed under the Creative Commons Attribution 4.0 License.

Scopus
Держатели документа:
Siberian Federal University, 79, Svobondyi prospekt, Krasnoyarsk, Krasnoyarsk Krai, 660041, Russian Federation
Institute of Biophysics, Siberian Branch Russian Academy of Sciences, 50/50, Akademgorodok, Krasnoyarsk, Krasnoyarsk Krai, 660036, Russian Federation

Доп.точки доступа:
Diaz-De-Quijano, D.; Vladimirovich Ageev, A.; Anatolevna Ivanova, E.; Valerevna Anishchenko, O.

Найти похожие

15.

Efficiency of Transfer of Essential Substances from Phytoplankton to Planktonic Crustaceans in Mesotrophic Conditions / I. Y. Feniova, E. G. Sakharova, Z. F. Buseva [et al.] // Inland Water Biol. - 2021. - Vol. 14, Is. 1. - P49-59, DOI 10.1134/S1995082920040033 . - ISSN 1995-0829
Кл.слова (ненормированные):
carbon -- efficiency of transfer of substances -- fish -- mesocosms -- mesotrophic conditions -- nitrogen -- phosphorus -- phytoplankton -- planktonic crustaceans -- primary and secondary production
Аннотация: Abstract: We assessed the efficiency of the transfer of essential substances (carbon, phosphorus, nitrogen, and fatty acids (FA), including polyunsaturated fatty acids (PUFAs)) from phytoplankton to planktonic crustaceans in experimental mesocosms in the presence and absence of fish. The experiments were conducted under mesotrophic conditions in 300 L mesocosms. We have found that transfer efficiencies from producers to consumers are different for different substances. In particular, FA, including PUFAs, are transferred less efficiently than carbon. In contrast, the efficiency of nutrient transfer, especially phosphorus, is higher than that of carbon. This evidences that zooplankton can accumulate nutrients, increasing their quality as a resource for higher trophic levels. Fish significantly reduced the efficiency of carbon transfer from phytoplankton to zooplankton per unit of water volume, but did not affect the transfer of substances per unit of biomass. Thus, the quality of zooplankton as a food resource for higher trophic levels did not decrease in the presence of fish, despite the decline in the efficiency of the transfer of the essential substances per unit of water volume under their influence. Since the efficiency of essential substances transfered from phytoplankton to zooplankton determines the functioning of the entire trophic web, we should seek ways to increase it. © 2021, Pleiades Publishing, Ltd.

Scopus
Держатели документа:
Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, Russian Federation
Papanin Institute for Biology of Inland Waters, Russian Academy of Sciences, Nekouzskii raion, Yaroslavl oblast, Borok, Russian Federation
Scientific and Practical Center for Bioresources, National Academy of Sciences of Belarus, Minsk, Belarus
Institute of Biophysics of Federal Research Centre, Krasnoyarsk Science Centre, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Department of Hydrobiology, Institute of Biology, University of Bialystok, Bialystok, Poland

Доп.точки доступа:
Feniova, I. Y.; Sakharova, E. G.; Buseva, Z. F.; Gladyshev, M. I.; Sushchik, N. N.; Gorelysheva, Z. I.; Karpowicz, M.; Semenchenko, V. P.

Найти похожие

16.

Direct and Indirect Detoxification Effects of Humic Substances / L. Bondareva, N. Kudryasheva // Agronomy-Basel. - 2021. - Vol. 11, Is. 2. - Ст. 198, DOI 10.3390/agronomy11020198. - Cited References:79. - This review was prepared with the partial financial support of the Program of the Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing (Russian Federation) 2020-2025. . - ISSN 2073-4395

РУБ Agronomy + Plant Sciences

Кл.слова (ненормированные):
humic substances -- detoxification -- luminous bacteria -- adaptive response
Аннотация: The review summarizes studies on the detoxification effects of water-soluble humic substances (HS), which are products of the natural transformation of organic substances in soils and bottom sediments that serve as natural detoxifying agents in water solutions. The detoxifying effects of HS on microorganisms are quite complex: HS neutralize free pollutants (indirect bioeffects) and also stimulate the protective response of organisms (direct bioeffects). Prospects and potential problems of bioluminescent bacteria-based assay to monitor toxicity of solutions in the presence of HS are discussed. The main criterion for the bioassay application is versatility and ease of use. The detoxification efficiency of HS in different pollutant solutions was evaluated, and the detoxification mechanisms are discussed. Particular attention was paid to the direct and complex direct + indirect effects of HS. The review focuses on the protective function of HS in solutions of radionuclides and salts of stable metals, with special consideration of the antioxidant properties of HS.

WOS
Держатели документа:
Fed Sci Ctr Hyg, Moscow 141014, Russia.
Russian Acad Sci, Inst Biophys, Krasnoyarsk Sci Ctr, Fed Res Ctr,Siberian Branch, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Biophys Dept, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Bondareva, Lydia; Kudryasheva, Nadezhda; Program of the Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing (Russian Federation) 2020-2025

Найти похожие

17.

Long-term trends and speciation of artificial radionuclides in two submerged macrophytes of the Yenisei River: A comparative study of Potamogeton lucens and Fontinalis antipyretica / T. Zotina, D. Dementyev, Y. Alexandrova // J. Environ. Radioact. - 2021. - Vol. 227. - Ст. 106461, DOI 10.1016/j.jenvrad.2020.106461 . - ISSN 0265-931X
Кл.слова (ненормированные):
Bioindicator -- Biomonitor -- Correlation with discharge -- Effective half-life -- Epiphytic biofilm -- Radiocesium -- Biomass -- Contamination -- Radioactivity -- Radioisotopes -- Rivers -- Artificial radionuclides -- Comparative studies -- Effective half-lives -- Fontinalis antipyretica -- Particulate Matter -- Positive correlations -- Radioactive contamination -- Submerged macrophytes -- River pollution
Аннотация: Long-term trends of artificial radionuclides, from 2003 to 2018, in two abundant species of macrophytes, shining pondweed, Potamogeton lucens, and water moss, Fontinalis antipyretica, have been analyzed to estimate the indicative reliability of these two species as biomonitors of radioactive contamination in a river system and to quantify the decrease in the content of artificial radionuclides in the Yenisei River. Time-dependent trends of artificial radionuclides in the biomass of these species were similar, resulting in estimates of effective half-lives for 54Mn, 58Co, 60Co, 65Zn, 137Cs, and 152Eu similar for both species. Concentrations of artificial radionuclides in biomass of shining pondweed and water moss correlated with annual discharges of the radionuclides to the Yenisei at different levels of significance, and the strongest (R2 > 0.7) positive correlation (p < 0.05) was obtained for 60Co, 65Zn, and 152Eu. Concentrations of 60Co, 137Cs, and 152Eu in water moss were 2–7.5 times higher than in shining pondweed, and considerable percentages of those isotopes were recorded in extracellular particulate matter, which was largely represented by epiphytic diatoms. Higher concentrations of artificial radionuclides in the biomass of water moss can be considered as an advantage of water moss as a monitor of radioactive contamination of the Yenisei, while shining pondweed is more useful for estimation of annual deposits of radionuclides in vegetation of the Yenisei and spatial transfer of radionuclides downstream of the discharge site. Despite differences in concentrations of artificial radionuclides, both species can be considered as reliable indicators of radioactive contamination of the river on a long-term scale. © 2020 Elsevier Ltd

Scopus
Держатели документа:
Institute of Biophysics, Federal Research Center “Krasnoyarsk Science Center” SB RAS, 50/50 Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Institute of Fundamental Biology and Biotechnology, Siberian Federal University, Russian Federation, 79 Svobodny av, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Zotina, T.; Dementyev, D.; Alexandrova, Y.

Найти похожие

18.

Effect of Fish on the Transfer Efficiency of Carbon, PUFA, and Nutrients from Phytoplankton to Zooplankton under Eutrophic Conditions / I. Y. Feniova, E. G. Sakharova, M. I. Gladyshev [et al.] // Biol. Bull. - 2021. - Vol. 48, Is. 8. - P1284-1297, DOI 10.1134/S1062359021080070. - Cited References:49. - Experiments and collection of biological material were supported by the National Science Center of Poland (project no. UMO-506 2016/21/B/NZ8/00434). Processing of phytoplankton samples was carried out with the financial support of the Russian Foundation for Basic Research (project no. 18-54-00002 Bel_a); processing of zooplankton samples and their analysis were carried out with the financial support of the Belarusian Republican Foundation for Basic Research (BRFFR no. B18R-004); statistical processing and analysis of data were performed under government contract no. AAAA-A18-118012690096-1; and interpretation of the results, data analysis, and preparation of materials for publication, were done with the financial support of the Russian Science Foundation (project no. 16-14-10323). . - ISSN 1062-3590. - ISSN 1608-3059

РУБ Biology
Рубрики:
FATTY-ACIDS
   FOOD QUALITY
   FRESH-WATER
   ZEBRA MUSSELS
   DAPHNIA
Кл.слова (ненормированные):
primary and secondary production -- carbon -- nitrogen -- phosphorus -- phyto- -- and zooplankton -- fish -- eutrophic conditions -- efficiency of substance -- transfer -- mesocosm
Аннотация: The efficiency of the transfer of carbon, polyunsaturated fatty acids (PUFA), nitrogen, and phosphorus from phytoplankton to zooplankton determines the functioning of the entire ecosystem. However, this parameter depends on environmental conditions. Fish as a very important factor regulating planktonic communities very likely affect the efficiency of the transfer of basic elements and substances from phytoplankton to zooplankton. In experimental mesocosms filled with water from a eutrophic lake and containing phyto- and zooplankton, we investigated how fish affect both primary and secondary production and the efficiency of transfer of carbon, nitrogen, phosphorus, PUFA, and fatty acids (FAs) from phytoplankton to zooplankton. Two treatments (control and fish treatment) were repeated in three replicates. The transfer efficiency of substances from phytoplankton to zooplankton was measured as the ratio of secondary production to primary production expressed per L and per unit of biomass. The efficiency expressed per L characterizes the productivity of the water body, while the efficiency expressed per unit of biomass indicates the effectiveness of aquatic species to transfer biologically valuable substances from one trophic level to another. We found that phytoplankton-zooplankton-fish interface is determined not only by predator-prey relationships, but are also affected by the quality of both phytoplankton and zooplankton in terms of contents of phosphorus, nitrogen, PUFA, and FAs in their biomass. We showed that, in the presence of fish, the transfer efficiency of carbon, phosphorus, nitrogen, eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), and FAs per unit of biomass from phytoplankton to zooplankton was increased twofold, 12.4-fold, 2.5-fold, 12.4-fold, 7.4-fold, and tenfold, respectively, relative to the control. This facilitates sustainable functioning of the ecosystem under fish pressure. Such a mechanism prevents zooplankton over-exploitation by fish and enlarges the food chain.

WOS
Держатели документа:
Russian Acad Sci, Severtsov Inst Ecol & Evolut, Moscow 119071, Russia.
Russian Acad Sci, Papanin Inst Biol Inland Waters, Borok 152742, Russia.
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Fed Res Ctr,Inst Biophys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Russia 660041, Russia.
Natl Acad Sci Belarus, Sci & Pract Ctr Bioresources, Minsk 220072, BELARUS.
Univ Bialystok, Inst Biol, Dept Hydrobiol, PL-15245 Bialystok, Poland.

Доп.точки доступа:
Feniova, I. Yu; Sakharova, E. G.; Gladyshev, M., I; Sushchik, N. N.; Gorelysheva, Z., I; Karpowicz, M.; National Science Center of PolandNational Science Centre, Poland [UMO-506 2016/21/B/NZ8/00434]; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [18-54-00002 Bel_a]; Belarusian Republican Foundation for Basic Research (BRFFR) [B18R-004]; Russian Science FoundationRussian Science Foundation (RSF) [16-14-10323]; [AAAA-A18-118012690096-1]

Найти похожие

19.

SEASONAL VARIABILITY OF SEDIMENTATION FLOWS IN SALT MEROMICTIC LAKE SHIRA (KHAKASSIA) / V. V. Babich, A. V. Darin, I. A. Kalugin [и др.] // Bull. Tomsk Polytech. Univ.-Geo Assets Eng. - 2021. - Vol. 332, Is. 12. - С. 22-34, DOI 10.18799/24131830/2021/12/3178. - Cited References:29. - The work was carried out on state assignment of IGM SB RAS, supported by the Ministry of Science and Higher Education of the Russian Federation, with partial support of the RFBR - grant 21-54-52001 (setting of traps, sampling) and grant 19-05-50046 (micro-XRF-SR). . - ISSN 2500-1019. - ISSN 2413-1830

РУБ Engineering, Geological
Рубрики:
CENTRAL TIBETAN PLATEAU
NAM-CO
VARVE
Кл.слова (ненормированные):
Bottom sediments -- sedimentation traps -- salt lakes -- micro-XRF -- synchrotron radiation -- regression analysis
Аннотация: The relevance of the work is caused by the need to study seasonal variations in the volume and composition of sedimentation flows in modern lakes and their relationship with weather and climatic factors, which can serve as a basis for reconstructing climatic changes in the past. The main aim: to assess seasonal changes in the mass, velocity and chemical composition of sedimentary material entering Lake Shira on the basis of generalization and analysis of the results of multiyear annual monitoring of the material of sedimentation traps incubated in the lake. Object of the study was the drainless, slightly saline meromictic lake Shira, located in the steppe intermontane depression on the territory of the Republic of Khakassia. Methods: long-term seasonal monitoring of sedimentary material forming bottom sediments using sedimentation traps incubated in the lake; study of the obtained material for a wide range of parameters (biological, hydrochemical, lithological-geochemical, granulometric, etc.) by various conventional methods, including the method of X-ray fluorescence microanalysis on synchrotron radiation beams (XRF-SI), adapted for the study of bottom samples; computer statistical analysis of the data obtained (multiple regression method, cross-correlation analysis, etc.) in order to identify the relationship between regional temperatures and the chemical composition of the deposited material with the construction of a regression model. Results. Based on the study of the amount and elemental composition of the sedimentary material of the seasonal bottom traps of Lake Shira, collected for 2012-2017, a dynamic model of the seasonal influx of sedimentary flows in lakes of this landscape-geochemical type was formulated. It has been established that the most intensive sedimentation of the material occurs in the summer-autumn period, less - in the winter-spring period. At the same time, in spring, the accumulation of allochthonous (terrigenous) aleurite material, supplied with flood waters, predominates; in the summer-autumn period, simultaneously with the deposition of clastogenic pelitic material, biogenic and chemogenic materials are accumulated in sediments in large quantities. In winter, clastogenic and biogenic processes of sedimentation practically stop, only chemogenic sedimentation of carbonates is observed. It was established that the sedimentation of allochthonous material entering the reservoir occurs during two-three months, which indicates a certain inertness of sedimentation. The presence of a stable relationship between the mass and chemical composition of terrigenous material entering the lake with the regional temperature of the near-surface air, which is one of the main regulators of the water balance of the reservoir, is shown.

WOS
Держатели документа:
Russian Acad Sci, Siberian Branch, Sobolev Inst Geol & Mineral, 3 Academician Koptyug Ave, Novosibirsk 360090, Russia.
Inst Biophys SB RAS, 50 Akad Gorodok, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Babich, Valery V.; Darin, Andrey, V; Kalugin, Ivan A.; Markovich, Tatyana, I; Zykov, Viktor V.; Rogozin, Denis Yu; Ministry of Science and Higher Education of the Russian Federation; RFBRRussian Foundation for Basic Research (RFBR) [21-54-52001, 19-05-50046]

Найти похожие

20.

A study of the properties and efficacy of microparticles based on P(3HB) and P(3HB/3HV) loaded with herbicides / R. Vijayamma, H. J. Maria, S. Thomas [et al.] // J. Appl. Polym. Sci. - 2021, DOI 10.1002/app.51756 . - Article in press. - ISSN 0021-8995
Кл.слова (ненормированные):
biodegradable -- drug delivery systems -- microparticles -- Agricultural robots -- Controlled drug delivery -- Solubility -- Targeted drug delivery -- Weed control -- 3-Hydroxybutyrate -- Average diameter -- Biodegradable -- Drug-delivery systems -- Human impact -- Metribuzin -- Micro particles -- Poly-3-hydroxybutyrate -- Polyhydroxyalkanoates -- Property -- Herbicides
Аннотация: The wide use of pesticides in agriculture has caused uncontrolled distribution of these chemicals in the environment, calling for the development and investigation of new environmentally friendly formulations, which would reduce human impact on nature. In the present study, the metribuzin (MET), tribenuron-methyl (TBM), and fenoxaprop-P-ethyl (FPE) herbicides were encapsulated in microparticles of degradable microbial polymers – polyhydroxyalkanoates (PHAs) – of two types – poly-3-hydroxybutyrate [P(3HB)] and poly(3-hydroxybutyrate-co-3-hydroxyvalerate [P(3HB/3HV)]. The use of P(3HB) resulted in higher yields of microparticles (63% to 79%) and larger sizes of the particles, whose average diameter was 0.60 ± 0.06–0.75 ± 0.11 ?m, while the average diameter of copolymer particles varied between 0.43 ± 0.12 and 0.55 ± 0.05 ?m. Encapsulation efficiency was rather determined by the type of herbicide and its solubility, varying from 24.7% to 48.2%. In vitro herbicide release from microparticles to water was affected by herbicide solubility and PHA chemical composition. The readily soluble MET showed the highest release rate, and over 30 days, 64% and 78% of the encapsulated amounts were released from P(3HB) and P(3HB/3HV) microparticles, respectively. High herbicidal activity of microparticles loaded with metribuzin and tribenuron-methyl was demonstrated in the laboratory stands of the Elsholtzia ciliata weed plant. © 2021 Wiley Periodicals LLC.

Scopus
Держатели документа:
Institute of Fundamental Biology and Biotechnology, Siberian Federal University, Krasnoyarsk, Russian Federation
International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, India
Institute of Biophysics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, Krasnoyarsk, Russian Federation
Krasnoyarsk Regional Center of Research Equipment of Federal Research Center “Krasnoyarsk Science Center SB RAS”, Krasnoyarsk, Russian Federation
L.V. Kirensky Institute of Physics, Federal Research Center “Krasnoyarsk Science Center SB RAS”, Krasnoyarsk, Russian Federation
Scientific Laboratory, Reshetnev Siberian State University of Science and Technology, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Vijayamma, R.; Maria, H. J.; Thomas, S.; Shishatskaya, E. I.; Kiselev, E. G.; Nemtsev, I. V.; Sukhanova, A. A.; Volova, T. G.

Найти похожие