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Using DCMU-fluorescence method for the identification of dominant phytoplankton groups [Text] / N. A. Gaevsky [et al.] // J. Appl. Phycol. - 2005. - Vol. 17, Is. 6. - P. 483-494, DOI 10.1007/s10811-005-2903-x. - Cited References: 28 . - ISSN 0921-8971

РУБ Biotechnology & Applied Microbiology + Marine & Freshwater Biology
Рубрики:
IN-VIVO
   CHLOROPHYLL FLUORESCENCE
   FLUOROMETRIC METHOD
   SITU
   PHOTOSYNTHESIS
   CYANOBACTERIA
   ALGAE
   EVOLUTION
   CULTURES
   LAKES
Кл.слова (ненормированные):
algae -- chlorophyll -- fluorescence -- vizualization
Аннотация: For the identification of ecologically significant dominant groups of phytoplanktonic algae a polychromatic DCMU-induced fluorescence method is recommended. A special fluorometer equipped with a system of replaceable filters is used to differentiate three regions of the spectrum (410 +/- 20, 510 +/- 20 and 540 +/- 10 nm) that can excite the basic light-harvesting pigments. Total and differential (for every algal taxon studied) chlorophyll a calculated from the fluorescence signals is in good agreement with biomass estimates from direct cell counts for several different trophic types of aquatic systems. This is made possible by the vizualization of the ratios of fluorescence signal values in their own coordinates: first, to decide whether it is necessary to correct linear equations in order to eliminate negative solutions; second, to determine the possibility of nulling the negative solution if a point is situated close to a side of the triangle; and third, to reduce the number of linear algebraic equations to two if the points are situated along one of the triangle sides or to one if the points are gathered at the apex. The polychromatic DCMU-induced fluorescence method can be used for monitoring natural phytoplankton populations to detect changes in their taxonomic structure.

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Держатели документа:
Krasnoyarsk State Univ, Dept Biol, Krasnoyarsk, Russia
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Gaevsky, N.A.; Kolmakov, V.I.; Anishchenko, O.V.; Gorbaneva, T.B.

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Biosorption of Am-241 from aqueous solutions and its biochemical fractionation in Pleurotus ostreatus mycelium [Text] / D. V. Dementyev [et al.] // Dokl. Biochem. Biophys. - 2015. - Vol. 460, Is. 1. - P34-36, DOI 10.1134/S160767291501010X. - Cited References:11. - This work was supported by the Russian Foundation for Basic Research (project no. 12-04-00915). . - ISSN 1607-6729. - ISSN 1608-3091

РУБ Biochemistry & Molecular Biology + Biophysics
Рубрики:
SACCHAROMYCES-CEREVISIAE
   REMOVAL
   AMERICIUM
   MECHANISM
   BIOMASS

WOS,
Scopus
Держатели документа:
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia.
ИБФ СО РАН

Доп.точки доступа:
Dementyev, D.V.; Zotina, T.A.; Manukovsky, N.S.; Kalacheva, G.S.; Bolsunovsky, A. Ya.; Russian Foundation for Basic Research [12-04-00915]

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Seasonal dynamics of amino acids in two small Siberian reservoirs dominated by prokaryotic and eukaryotic phytoplankton [Text] / G. S. Kalachova [et al.] // Aquat. Ecol. - 2004. - Vol. 38, Is. 1. - P. 3-15, DOI 10.1023/B:AECO.0000021044.55658.71. - Cited References: 37 . - ISSN 1386-2588

РУБ Ecology + Limnology + Marine & Freshwater Biology
Рубрики:
DISSOLVED ORGANIC-MATTER
   PARTICULATE FATTY-ACIDS
   FRESH-WATER ECOSYSTEMS
   BACTERIAL PRODUCTION
   CHEMICAL-COMPOSITION
   RATES
   MICROALGAE
   PROTEINS
   RELEASE
   DAPHNIA
Кл.слова (ненормированные):
amino acids -- phytoplankton -- cyanobacteria -- blooms
Аннотация: The comparison of the dynamics of phytoplankton biomass and total amino acid composition was made for two water bodies: in one the phytoplankton were dominated by prokaryotes (i.e., there was a bloom of cyanobacteria) and by eukaryotic microalgae in the other. The dynamics of phytoplankton biomass and of total amino acid composition of water were investigated during the vegetation season. It was found that the only factor that significantly changed the percentages of amino acids in water was the bloom of cyanobacteria in the "blooming" water body. During the bloom of cyanobacteria, the absolute and relative content of the Leu-Glu group increased, while the contents of other acids generally dropped. Before and after the bloom, no significant variations in the total amino acid composition were recorded. In the reservoir where eukaryotic microalgae dominated, no significant variations in amino acid composition were recorded during the season.

WOS
Держатели документа:
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia
Krasnoyarsk State Univ, Krasnoyarsk 660041, Russia
Krasnoyarsk State Agr Univ, Krasnoyarsk 660049, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Kalachova, G.S.; Kolmakova, A.A.; Gladyshev, M.I.; Kravchuk, E.S.; Ivanova, E.A.

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Linmetic zooplankton passing through a high-head dam and their fate in a river with high current velocity (case of the Krasnoyarsk Hydroelectric Power Station on the Yenisey River) [Текст] / O. P. Dubovskaya, M. I. Gladyshev, O. N. Makhutova // Zhurnal Obshchei Biol. - 2004. - Vol. 65, Is. 1. - P. 81-93. - Cited References: 15 . - ISSN 0044-4596

РУБ Biology
Рубрики:
MORTALITY
Аннотация: The vertical distribution of net zooplankton in head-water of Krasnoyarsk hydroelectric power station and its horizontal distribution in the tail-water were studied during two years in winter and summer seasons. In order to distinguish living and dead individuals the special staining was used. It was revealed that on average 77% of living plankton pass through high-head dam with deep water scoop to the tailwater. While passing through dam aggregates some individuals of the reservoir plankton are traumatized and die, that results in some increase of portion of dead individuals in the tail water near dam (from 3 to 6%). Alive zooplankton passed through the darn aggregates is eliminated under the Upper Yenisey highly turbulent conditions. There is approximately 10% of it in 32 km from the dam if compare with biomass in 20-40 m layer of reservoir; the portion of dead increases to I M. The biomass of zooplankton suspended in the water column of the tail-water sometimes increases (till 1 g/m(3)) due to large Copepoda Heterocope borealis, which inhabits near-bottom and near-shore river zones and can be found in the central part of the river during reproductive period. Limnetic zooplankton from the reservoir cannot be considered as important food for planktivores in the tail-water.

WOS
Держатели документа:
RAS, Siberian Branch, Inst Biophys, Krasnoyarsk 660036, Russia
Krasnoyarsk State Univ, Krasnoyarsk 660041, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Dubovskaya, O.P.; Gladyshev, M.I.; Makhutova, O.N.

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Synthesis of poly(3-hydroxybutyrate) by the autotrophic CO-oxidizing bacterium Seliberia carboxydohydrogena Z-1062 [Text] / T. Volova, N. Zhila, E. Shishatskaya // J. Ind. Microbiol. Biotechnol. - 2015. - Vol. 42, Is. 10. - P1377-1387, DOI 10.1007/s10295-015-1659-9. - Cited References:36. - The research was supported by the state budget allocated to the fundamental research at the Russian Academy of Sciences (project No 01201351505). . - ISSN 1367-5435. - ISSN 1476-5535

РУБ Biotechnology & Applied Microbiology
Рубрики:
CARBON-MONOXIDE
   RALSTONIA-EUTROPHA
   POLYHYDROXYALKANOATES
   GROWTH
   H-2
Кл.слова (ненормированные):
Carboxydobacteria -- Synthesis -- Poly(3-hydroxybutyrate) -- Carbon monoxide
Аннотация: The present study addresses growth parameters and physiological and biochemical characteristics of the aerobic CO-oxidizing carboxydobacterium Seliberia carboxydohydrogena Z-1062. Poly(3-hydroxybutyrate) yields were investigated in experiments with limiting concentrations of mineral nutrients (nitrogen or sulfur or nitrogen and sulfur) in batch culture of S. carboxydohydrogena Z-1062 grown on gas mixtures consisting of CO2, O-2, H-2, and CO. CO concentrations of 10, 20, and 30 % v/v did not affect polymer synthesis, whose content after 56-h cultivation under limiting concentrations of nitrogen and sulfur was 52.6-62.8 % of biomass weight at a productivity of 0.13-0.22 g/L h. The inhibitory effect of CO on cell concentration was revealed at CO concentration of 30 % v/v. That also caused a decrease in substrate (H-2 and O-2) use efficiency. Thus, this carboxydobacterium can be regarded as a potential producer of polyhydroxyalkanoates from industrial hydrogenous sources.

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Scopus
Держатели документа:
RAS, SB, Inst Biophys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Volova, Tatiana; Zhila, Natalia; Shishatskaya, Ekaterina; Russian Academy of Sciences [01201351505]

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Biosorption of 241Am from solution and its biochemical fractionation in the mycelium of macromycetes / D. V. Dementyev [et al.] // Radiochemistry. - 2015. - Vol. 57, Is. 6. - P661-665, DOI 10.1134/S1066362215060144 . - ISSN 1066-3622
Кл.слова (ненормированные):
americium -- fungus mycelium -- sorption
Аннотация: Experiments with macromycetes Pleurotus ostreatus, Neonothopanus nambi, and Agaricus bisporus demonstrated for the first time that live mycelium of mushrooms, cultivated on a liquid culture medium, can efficiently take up dissolved 241Am in its biomass. Biochemical fractionation of the mycelium biomass demonstrated for the first time that the major fraction (up to 90%) of 241Am accumulated in the mycelium is bonded to structural polysaccharides of the cell walls. The sorption capacity of cell wall polysaccharides for 241Am is 2.7-3.6 times higher than that of the initial mycelium biomass, and the activity concentration of 241Am in the polysaccharides reached 950 Bq g-1 dry weight. © 2015 Pleiades Publishing, Inc.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50/50, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Dementyev, D. V.; Zotina, T. A.; Manukovsky, N. S.; Kalacheva, G. S.

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Experimental effects of large-bodied Daphnia, fish and zebra mussels on cladoceran community and size structure [Text] / I. Feniova [et al.] // J. Plankton Res. - 2015. - Vol. 37, Is. 3. - P611-625, DOI 10.1093/plankt/fbv022. - Cited References:66. - This research was supported by the Polish National Science Centre (2012/05/B/N28/02684). The work also was supported by grants of Belorussian Foundation for Basic Research ((sic)12P-98), Russian Foundation for Basic Research (14-04-00087), Siberian Federal University project, carried out according to Federal Tasks of Ministry of Education and Science of Russian Federation (6.1089.214/K) and by Russian Federal Tasks of Fundamental Research (51.1.1). . - ISSN 0142-7873. - ISSN 1464-3774

РУБ Marine & Freshwater Biology + Oceanography
Рубрики:
FRESH-WATER ZOOPLANKTON
POLYUNSATURATED FATTY-ACIDS
LAKE-ERIE
Кл.слова (ненормированные):
alien species -- large- and small-bodied cladocerans -- invasion mechanisms -- PUFA -- C:N:P ratios
Аннотация: Understanding the factors that regulate the abundance, size structure and community structure of cladocerans is an important goal of aquatic ecologists. While both top-down and bottom-up factors help to structure cladoceran communities, there may be interactions between these factors. We conducted a mesocosm study to determine how alien large-bodied Daphnia, zebra mussels and fish affected cladoceran community and size structure. We found that large-bodied Daphnia reduced algal resources and the fecundity of smaller bodied cladocerans. Fish removed the large-bodied Daphnia magna from the mesocosms and shifted the cladoceran community to a smaller body size. Fish also appeared to promote increases in cladoceran diversity through the coexistence of several smaller bodied taxa. In contrast, zebra mussels increased cyanobacteria and helped to promote the success of the alien Daphnia, but reduced the biomass of small-bodied cladocerans. Zebra mussels reduced the carbon (C):phosphorus (P) ratio of the phytoplankton in the mesocosms which may have favored the relatively P-limited Daphnia. Combined, our results highlight the complex interactions of multiple factors that help to regulate cladoceran community and size structure.

WOS,
Scopus
Держатели документа:
Russian Acad Sci, AN Severtsov Inst Ecol & Evolut, Moscow 119071, Russia.
Univ Warsaw, Biol & Chem Res Ctr, Inst Zool, Dept Hydrobiol, PL-02089 Warsaw, Poland.
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Polish Acad Sci, M Nencki Inst Expt Biol, PL-02093 Warsaw, Poland.
Natl Acad Sci Belarus, Sci & Pract Ctr Bioresources, Minsk 220072, Byelarus.
Oklahoma State Univ, Dept Integrat Biol, Stillwater, OK 74078 USA.

Доп.точки доступа:
Feniova, Irina; Dawidowicz, Piotr; Gladyshev, Michail I.; Kostrzewska-Szlakowska, Iwona; Rzepecki, Marek; Razlutskij, Vladimir; Sushchik, Nadezda N.; Majsak, Natalia; Dzialowski, Andrew R.; Polish National Science Centre [2012/05/B/N28/02684]; Belorussian Foundation for Basic Research [(sic)12P-98]; Russian Foundation for Basic Research [14-04-00087]; Siberian Federal University project; Russian Federal Tasks of Fundamental Research [51.1.1]

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Fatty acid and elemental composition of littoral “green tide” algae from the Gulf of Finland, the Baltic Sea / Y. I. Gubelit [et al.] // J. Appl. Phycol. - 2014. - Vol. 27, Is. 1. - P375-386, DOI 10.1007/s10811-014-0349-8 . - ISSN 0921-8971
Кл.слова (ненормированные):
Cladophora glomerata -- Coastal eutrophication -- Essential PUFA -- Green tides -- Ulva intestinalis
Аннотация: Coastal eutrophication leads to a shift in primary producer communities from perennial species to ephemeral fast-growing species of macroalgae, which is known as “green tides” phenomenon. In brackish water habitats of the Baltic Sea, the opportunistic green algae, Cladophora glomerata and Ulva intestinalis, replaced the brown alga Fucus vesiculosus, while in freshwater estuarine parts they replaced epilithic microalgae. We studied Baltic populations of the macroalgae, C. glomerata and U. intestinalis, and epilithic and epiphytic microalgae, with respect to their nutritive quality, such as content of essential polyunsaturated fatty acids (PUFAs) and elemental composition. Fatty acid profiles of the two macroalgae were significantly different, including levels of essential PUFAs. We found a relatively high content of eicosapentaenoic acid (EPA; 20:5n−3) in C. glomerata biomass (4.14 mg g−1 C), whereas U. intestinalis had a lower value (0.45 mg g−1 C). Comparison with literature data showed that C. glomerata appeared to be a more valuable food for potential invertebrate consumers in respect to EPA content and stoichiometric C/P ratio than perennial F. vesiculosus and U. intestinalis. Thus, replacement of F. vesiculosus and epilithic microalgae by C. glomerata would not decrease the potential nutritive value of coastal algal communities for invertebrates. In turn, if U. intestinalis dominate in algal community, the nutritive value of primary producers in coastal zone would decrease. However, in following works, other important indicators of nutritive value, such as sterols and amino acids, should be included in the estimations of green tide algae species. © 2014, Springer Science+Business Media Dordrecht.

Scopus
Держатели документа:
Zoological Institute of the Russian Academy of Science, Universitetskaya emb. 1, Saint Petersburg, Russian Federation
Institute of Biophysics of Siberian Branch of the Russian Academy of Science, Akademgorodok, Krasnoyarsk, Russian Federation
Siberian Federal University, Svobodny av. 79, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Gubelit, Y. I.; Makhutova, O. N.; Sushchik, N. N.; Kolmakova, A. A.; Kalachova, G. S.; Gladyshev, M. I.

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The effect of cannibalism intensity on net primary production and dynamics of trophic links in aquatic ecosystems [Text] / I. M. Shirobokova, N. S. Pechurkin ; ed. M Nelson [et al.] // SPACE LIFE SCIENCES: CLOSED ARTIFICIAL ECOSYSTEMS AND LIFE SUPPORT SYSTEMS. Ser. ADVANCES IN SPACE RESEARCH : PERGAMON-ELSEVIER SCIENCE LTD, 2003. - Vol. 31: Meeting of F4 1 Session of the 34th Scientific Assembly of COSPAR (OCT, 2002, HOUSTON, TEXAS), Is. 7. - P. 1737-1741, DOI 10.1016/S0273-1177(03)00112-1. - Cited References: 13 . - ISBN 0273-1177

РУБ Engineering, Aerospace + Astronomy & Astrophysics + Ecology + Geosciences, Multidisciplinary + Meteorology & Atmospheric Sciences

Аннотация: A mathematical model was used to investigate the effect of cannibalism intensity on the net primary production and the dynamics of trophic links in an aquatic ecosystem characterized by cannibalism at the upper trophic level. A mathematical model of an aquatic ecosystem has been constructed, with the following principal trophic links: limiting nutrient concentration, producers (phytoplankton), nonpredatory and predatory zooplankton. The model takes into account the age structure of the predator and includes two age groups (the young and adults). The adult predators are cannibals feeding on both nonpredatory zooplankton and their own young, which consume phytoplankton. It has been found that when cannibalism intensity increases above a certain level, the concentrations of both adults and the young of the predators decrease. At the same time, the concentrations of the nonpredatory zooplankton and of nutrients increase, while the biomass of producers decreases. When the cannibalism intensity is low, the net primary production of the system increases to a certain level correlated with the increase in cannibalism intensity and drops sharply when the level of consumption of young is high. There is an optimal intensity of cannibalism, at which the productivity in the photosynthesis link is maximal. (C) 2003 COSPAR. Published by Elsevier Science Ltd. All rights reserved.

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Держатели документа:
Russian Acad Sci, Inst Biophys, Akad Gorodok, Krasnoyarsk 660036, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Shirobokova, I.M.; Pechurkin, N.S.; Nelson, M \ed.\; Pechurkin, NS \ed.\; Dempster, WF \ed.\; Somova, LA \ed.\; Somo, , LA \ed.\

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10.

Recycling efficiencies of C,H,O,N,S, and P elements in a biological life support system based on microorganisms and higher plants [Text] / J. B. Gros [et al.] ; ed.: G Horneck, ME Vazquez, Vazquez, ME // SPACE LIFE SCIENCES: MISSIONS TO MARS, RADIATION BIOLOGY, AND PLANTS AS A FOUNDATION FOR LONG-TERM LIFE SUPPORT SYSTEMS IN SPACE. Ser. ADVANCES IN SPACE RESEARCH : PERGAMON-ELSEVIER SCIENCE LTD, 2003. - Vol. 31: F0 1 and F1 3-F2 3 Symposia of COSPAR Scientific Commission F held at the 33rd COSPAR Scientific Assembly (JUL, 2000, WARSAW, POLAND), Is. 1. - P. 195-199, DOI 10.1016/S0273-1177(02)00739-1. - Cited References: 10 . - ISBN 0273-1177

РУБ Engineering, Aerospace + Astronomy & Astrophysics + Geosciences, Multidisciplinary + Meteorology & Atmospheric Sciences

Аннотация: MELiSSA is a microorganism based artificial ecosystem conceived as a tool for understanding the behavior of ecosystems and developing the technology for future Manned Space Missions. MELiSSA is composed of four compartments colonized by the microorganisms required by the function of this ecosystem : breakdown of waste produced by men, regeneration of atmosphere and biosynthesis of edible biomass. This paper reports the mass balance description of a Biological Life Support System composed of the MELiSSA loop and of a Higher Plant Compartment working in parallel with the photosynthetic Spirulina compartment producing edible biomass. The recycling efficiencies of the system are determined and compared for various working conditions of the MELiSSA loop with or without the HPC. (C) 2002 Published by Elsevier Science Ltd on behalf of COSPAR.

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Держатели документа:
Univ Clermont Ferrand, Lab Genie Chim & Biochim, F-63177 Aubiere, France
European Space Agcy, Estec, YVC, NL-2200 AG Noordwijk, Netherlands
RAS, Siberian Branch, Inst Biophys, Krasnoyarsk 630036, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Gros, J.B.; Poughon, L...; Lasseur, C...; Tikhomirov, A.A.; Horneck, G \ed.\; Vazquez, ME \ed.\

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11.

Comparative analysis of ecophysiological characteristics of Stephanodiscus hantzschii Grun. in the periods of its bloom in recreational water bodies [Text] / V. I. Kolmakov [et al.] // Russ. J. Ecol. - 2002. - Vol. 33, Is. 2. - P. 97-103, DOI 10.1023/A:1014448707663. - Cited References: 31 . - ISSN 1067-4136

РУБ Ecology
Рубрики:
RESOURCE
Кл.слова (ненормированные):
Stephanodiscus hantzschii Grun. -- chlorophyll a -- efficiency in using photosynthetically active radiation
Аннотация: In the periods of summer and autumn bloom of the Stephanodiscus hantzschii Crun. in recreational water bodies, studies on the vertical distribution of chlorophyll a, its contents per unit biomass, efficiency in using photosynthetically active radiation (E-PhAR), and assimilative activity of microalgae were performed. The results confirmed the existence of two ecophysiological forms of St. hantzschii and provided evidence that both forms are typically autotrophic and can efficiently use low-intensity PhAR for photosynthesis.

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Держатели документа:
Russian Acad Sci, Inst Biophys, Siberian Div, Krasnoyarsk 660036, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Kolmakov, V.I.; Gaevskii, N.A.; Ivanova, E.A.; Dubovskaya, O.P.; Gribovskaya, I.V.; Kravchuk, E.S.

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12.

Growing of Pleurotus florida on substrates with inedible potato biomass [Текст] / N. S. Manukovsky, V. S. Kovalev, I. V. Gribovskaya // Mikol. Fitopatol. - 2002. - Vol. 36, Is. 4. - P. 48-54. - Cited References: 14 . - ISSN 0026-3648

РУБ Mycology

Аннотация: The possibility to grow oyster mushroom Pleurotus florida Fovose on the substrate prepared from inedible potato biomass was tested. It was shown that mycelium growth rate was increased by 61-69 % after boiling or soaking of inedible potato biomass and mixing it with wheat straw. The increase in growth rate can be accounted for the decrease of potassium content in the substrate from 5,53 % to 0.87-0.88 %. Mixing inedible potato biomass with wheat straw has had a positive impact on the oyster mushroom fruiting and the convertion of spent mushroom compost into biohumus.

WOS
Держатели документа:
Russian Acad Sci, Inst Biophys, Krasnoyarsk, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Manukovsky, N.S.; Kovalev, V.S.; Gribovskaya, I.V.

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13.

Mass exchange in an experimental new-generation life support system model based on biological regeneration of environment [Text] / A. A. Tikhomirov [et al.] ; ed. M Nelson [et al.] // SPACE LIFE SCIENCES: CLOSED ARTIFICIAL ECOSYSTEMS AND LIFE SUPPORT SYSTEMS. Ser. ADVANCES IN SPACE RESEARCH : PERGAMON-ELSEVIER SCIENCE LTD, 2003. - Vol. 31: Meeting of F4 1 Session of the 34th Scientific Assembly of COSPAR (OCT, 2002, HOUSTON, TEXAS), Is. 7. - P. 1711-1720, DOI 10.1016/S0273-1177(03)00108-X. - Cited References: 13 . - ISBN 0273-1177

РУБ Engineering, Aerospace + Astronomy & Astrophysics + Ecology + Geosciences, Multidisciplinary + Meteorology & Atmospheric Sciences

Аннотация: An experimental model of a biological life support system was used to evaluate qualitative and quantitative parameters of the internal mass exchange. The photosynthesizing unit included the higher plant component (wheat and radish), and the heterotrophic unit consisted of a soil-like substrate, California worms, mushrooms and microbial microflora. The gas mass exchange involved evolution of oxygen by the photosynthesizing component and its uptake by the heterotroph component along with the formation and maintaining of the SLS structure, growth of mushrooms and California worms, human respiration, and some other processes. Human presence in the system in the form of "virtual human" that at regular intervals took part in the respirative gas exchange during the experiment. Experimental data demonstrated good oxygen/carbon dioxide balance, and the closure of the cycles of these gases was almost complete. The water cycle was nearly 100% closed. The main components in the water mass exchange were transpiration water and the watering solution with mineral elements. Human consumption of the edible plant biomass (grains and roots) was simulated by processing these products by a unique physicochemical method of oxidizing them to inorganic mineral compounds, which were then returned into the system and fully assimilated by the plants. The oxidation was achieved by "wet combustion" of organic biomass, using hydrogen peroxide following a special procedure, which does not require high temperature and pressure. Hydrogen peroxide is produced from the water inside the system. The closure of the cycle was estimated for individual elements and compounds. Stoichiometric proportions are given for the main components included in the experimental model of the system. Approaches to the mathematical modeling of the cycling processes are discussed, using the data of the experimental model. Nitrogen, as a representative of biogenic elements, shows an almost 100% closure of the cycle inside the system, The proposed experimental model of a biological system is discussed as a candidate for potential application in the investigations aimed at creating ecosystems with largely closed cycles of the internal mass exchange. The formation and maintenance of sustainable cycling of vitally important chemical elements and compounds in biological life support systems (BLSS) is an extremely pressing problem. To attain the stable functioning of biological life support systems (BLSS) and to maintain a high degree of closure of material cycles in them, it is essential to understand the character of mass exchange processes and stoichiometric proportions of the initial and synthesized components of the system. (C) 2003 COSPAR. Published by Elsevier Science Ltd. All rights reserved.

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Держатели документа:
Russian Acad Sci, Inst Biophys, Krasnoyarsk, Russia
Univ Strasbourg 1, Clermont Ferrand, France
ESA, Estec, Environm Control & Life Support Sect, Noordwijk, Netherlands
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Tikhomirov, A.A.; Ushakova, S.A.; Manukovsky, N.S.; Lisovsky, G.M.; Kudenko, Y.A.; Kovalev, V.S.; Gubanov, V.G.; Barkhatov, Y.V.; Gribovskaya, I.V.; Zolotukhin, I.G.; Gros, J.B.; Lasseur, C...; Nelson, M \ed.\; Pechurkin, NS \ed.\; Dempster, WF \ed.\; Somova, LA \ed.\; Somo, , LA \ed.\

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14.

Remote assay for chlorophyll photosynthetic potential of crops on the example of wheat [Text] / A. F. Sid'ko // Biol. Bull. - 2004. - Vol. 31, Is. 5. - P. 450-456, DOI 10.1023/B:BIBU.0000043769.80086.02. - Cited References: 20 . - ISSN 1062-3590

РУБ Biology

Аннотация: An optical remote assay for biological production of crops in the field during the vegetation period is proposed. Our calculations demonstrate a good correlation between the S(t) value and crop yield (in the range from 0.85 to 0.90); the higher is S(t) for the vegetation period, the higher is the crop yield. S(t) value can be used to calculate the increase in dry and wet biomass for various crops during the whole vegetation period with an error of less than 10-12%. The absolute error of crop yield for 110 cultivars of wheat, oats, and barley during the experimental period was +/-3-3.5 quintal/ha with the mean crop yield of 14-38 quintal/ha.

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Держатели документа:
Russian Acad Sci, Siberian Div, Inst Biophys, Krasnoyarsk 660036, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Sid'ko, A.F.

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15.

Synthesis of biomass and utilization of plants wastes in a physical model of biological life-support system [Text] / A. A. Tikhomirov [et al.] // Acta Astronaut. - 2003. - Vol. 53: 53rd Congress of the International-Astronautical-Federation (IAF) (OCT 10, 2002, HOUSTON, TEXAS), Is. 04.10.2013. - P. 249-257, DOI 10.1016/S0094-5765(03)00137-1. - Cited References: 16 . - ISSN 0094-5765

РУБ Engineering, Aerospace

Аннотация: The paper considers problems of biosynthesis of higher plants' biomass and "bioloaical incineration" of plant wastes in a working physical model of biological LSS. The plant wastes are "biologically incinerated" in a special heterotrophic block involving Californian worms, mushrooms and straw. The block processes plant wastes (straw, haulms) to produce soil-like substrate (SLS) on which plants (wheat, radish) are grown. Gas exchange in such a system consists of respiratory gas exchange of SLS and photosynthesis and respiration of plants. Specifics of gas exchange dynamics of high plants - SLS complex has been considered. Relationship between such a gas exchange and PAR irradiance and age of plants has been established. Nitrogen and iron were found to the first to limit plants' growth on SLS when process conditions are deranged. The SLS microflora has been found to have different kinds of ammonifying and denitrifying bacteria which is indicative of intensive transformation of nitrogen-containing compounds. The number of physiological groups of microorganisms in SLS was, on the whole, steady. As a result, organic substances - products of exchange of plants and microorganisms were not accumulated in the medium, but mineralized and assimilated by the biocenosis. Experiments showed that the developed model of a manmade ecosystem realized complete utilization of plant wastes and involved them into the intrasystem turnover. (C) 2003 International Astronautical Federation. Published by Elsevier Science Ltd. All rights reserved.

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Держатели документа:
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk, Russia
Univ B Pascal, Clermont Ferrand, France
Estec, ESA, Environm Control & Life Support Sect, Noordwijk, Netherlands
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Tikhomirov, A.A.; Ushakova, S.A.; Manukovsky, N.S.; Lisovsky, G.M.; Kudenko, Y.A.; Kovalev, V.S.; Gribovskaya, I.V.; Tirranen, L.S.; Zolotukhin, I.G.; Gros, J.B.; Lasseur, C...

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16.

Particulate fatty acids in two small Siberian reservoirs dominated by different groups of phytoplankton [Text] / N. N. Sushchik [et al.] // Freshw. Biol. - 2003. - Vol. 48, Is. 3. - P. 394-403, DOI 10.1046/j.1365-2427.2003.01009.x. - Cited References: 44 . - ISSN 0046-5070

РУБ Marine & Freshwater Biology
Рубрики:
ENCLOSED EXPERIMENTAL ECOSYSTEM
   BLUE-GREEN-ALGAE
   DAPHNIA-GALEATA
   FOOD QUALITY
   MICROALGAE
   ZOOPLANKTON
   NUTRITION
   GROWTH
   LAKE
   REPRODUCTION
Кл.слова (ненормированные):
cyanobacteria -- daphnids -- diatoms -- fatty acids
Аннотация: 1. We studied the composition of fatty acids (FAs) in the seston from two small freshwater reservoirs (Bugach and Lesnoi) with distinct periodicity of domination by cyanobacteria and eukaryotic algae during the growth season. 2. The diatoms in the both reservoirs were characterised by a high content of 14:0 and C16 unsaturated acids, whereas that of the essential FA 20:5omega3 [eicosapentanoic acid (EPA)] was low. The correlation between this polyunsaturated FA (PUFA) and diatom biomass was not significant in either reservoir. The percentage of 20:5omega3 in seston significantly correlated with the biomass of euglenophyta in Bugach and dinophyta in Lesnoi. Hence the diatoms, usually referred as a valuable food for zooplankton, were not an important source of the essential PUFA in these systems. 3. The dominant cyanobacteria in Bugach, and the green algae in Lesnoi, both contained the same marker acids: 18:3omega3 and 18:2omega6. Hence, a discrimination between these two phytoplanktonic groups on the basis of FA biomarkers may be difficult in some cases. 4. We found no significant correlation between the content of 20:5omega3 in seston and the biomass of the dominant daphniids in either reservoir. This is contrary to expectations, based on the literature, that EPA is generally important. Rather, the biomass of the two dominant Daphnia species in Bugach correlated strongly with the content of 18:3omega3 in the seston. The cyanobacteria were a probable source of this omega3 FA for Daphnia . We conclude that EPA is not always important for Daphnia populations although, in such cases, some other PUFA (e.g. 18:3omega3) might be related to their growth.

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Держатели документа:
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia
Krasnoyarsk State Univ, Krasnoyarsk, Russia
Krasnoyarsk State Agr Univ, Krasnoyarsk, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Sushchik, N.N.; Gladyshev, M.I.; Kalachova, G.S.; Kravchuk, E.S.; Dubovskaya, O.P.; Ivanova, E.A.

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17.

Poly(3-hydroxybutyrate)/metribuzin formulations: characterization, controlled release properties, herbicidal activity, and effect on soil microorganisms / T. Volova [et al.] // Environ. Sci. Pollut. Res. - 2016. - Vol. 23, Is. 23. - P23936-23950, DOI 10.1007/s11356-016-7636-7. - Cited References:41. - This study was supported by the Russian Science Foundation (grant no. 14-26-00039). . - ISSN 0944-1344. - ISSN 1614-7499

РУБ Environmental Sciences
Рубрики:
METRIBUZIN RELEASE
   POLYHYDROXYALKANOATES
   POLYMER
   MATRIX
   PESTICIDES
Кл.слова (ненормированные):
Metribuzin -- Degradable poly-3-hydroxybutyrate -- Slow-release P(3HB)/MET -- formulations -- Release kinetics -- Agrostis stolonifera -- Setaria -- macrocheata
Аннотация: Slow-release formulations of the herbicide metribuzin (MET) embedded in the polymer matrix of degradable poly-3-hydroxybutyrate [P(3HB)] in the form of microparticles, films, microgranules, and pellets were developed and tested. The kinetics of polymer degradation, MET release, and accumulation in soil were studied in laboratory soil microecosystems with higher plants. The study shows that MET release can be controlled by using different techniques of constructing formulations and by varying MET loading. MET accumulation in soil occurs gradually, as the polymer is degraded. The average P(3HB) degradation rates were determined by the geometry of the formulation, reaching 0.17, 0.12, 0.04, and 0.05 mg/day after 60 days for microparticles, films, microgranules, and pellets, respectively. The herbicidal activities of P(3HB)/MET formulations and commercial formulation Sencor Ultra were tested on the Agrostis stolonifera and Setaria macrocheata plants. The parameters used to evaluate the herbicidal activity were plant density and the weight of fresh green biomass measured at days 10, 20, and 30 after sowing. All P(3HB)/MET formulations had pronounced herbicidal activity, which varied depending on MET loading and the stage of the experiment. In the early phases of the experiment, the herbicidal effect of P(3HB)/MET formulations with the lowest MET loading (10 %) was comparable with that of the commercial formulation. The herbicidal effect of P(3HB)/MET formulations with higher MET loadings (25 and 50 %) at later stages of the experiment were stronger than the effect of Sencor Ultra.

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Russian Acad Sci, Inst Biopshys, Siberian Branch, 50-50 Akademgorodok, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, 79 Svobodny Ave, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Volova, Tatiana; Zhila, Natalia; Kiselev, Evgeniy; Prudnikova, Svetlana; Vinogradova, Olga; Nikolaeva, Elena; Shumilova, Anna; Shershneva, Anna; Shishatskaya, Ekaterina; Russian Science Foundation [14-26-00039]

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18.

Luminescence of wood samples during long-term storage / A. P. Puzyr, S. E. Medvedeva // Mycosphere. - 2016. - Vol. 7, Is. 6. - P716-727, DOI 10.5943/mycosphere/7/6/2 . - ISSN 2077-7000
Кл.слова (ненормированные):
Light emitting wood -- Luminous mycelia
Аннотация: The present study describes changes in the mycelium of the fungus growing on the luminescent wood collected on Borneo Island in early December 2013 that occurred during 31 months of storage. The study shows that wood samples retain their ability to emit light, forming two types of luminescent mycelium: surface mycelium and aerial mycelium. The hyphae of the surface mycelium form on the surface of the wood sample and then spread over the surface of the polyethylene bag or over the surface of the bottom of tissue culture flasks containing the samples. The aerial mycelium develops later and only in tissue culture flasks, forming biomass composed of local interlaced hyphae, growing upward. The surface mycelium is characterized by non-uniform "flickering" luminescence along the hyphae. There is no diurnal periodicity in the luminescence of this fungus, but luminescence is increased by mechanical disturbance or exposure to ultraviolet radiation. The local impact of these factors causes an increase in luminescence of the mycelium regions that have not been directly affected. It has been assumed that the variable level of luminescence is an individual trait of this fungus species. The results obtained in this study suggest that luminescent wood found on Borneo Island contains mycelium of a fungus species, whose luminescent properties are essentially different from those of the fungi described in the scientific literature.

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Держатели документа:
Institute of Biophysics, Siberian Branch of Russian Academy of Science, Federal Research Center 'Krasnoyarsk Science Center SB RAS', Akademgorodok, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Puzyr, A. P.; Medvedeva, S. E.

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19.

577.34
И 73


    Интенсивность накопления урана-238 представителями разных экологических уровней экосистемы р. Енисей [Текст] / Сибирское Отделение Российской академии наук, Институт биофизики СО РАН ; Институт биофизики СО РАН // Вестник Томского государственного университета. Биология. - 2016. - № 2 (34) . - С. 161-171DOI 10.17223/19988591/34/11
   Перевод заглавия: Accumulation of uranium-238 by representatives of different ecological levels in the Yenisei River ecosystem

УДК

577.34

597.5

Кл.слова (ненормированные):
коэффициент накопления -- трофический уровень -- Philolimnogammarus viridis -- Fointinalis antipyretica -- Thymallus arcticus -- Esox lucius)
Аннотация: В результате многолетних исследований (2010-2013) получены данные по накоплению урана-238 в гидробионтах разных трофических уровней экосистемы р. Енисей. Пробы водного мха (Fointinalis antipyretica), зообентоса (Philolimnogammarus viridis и Ph. Cyaneus), сибирского хариуса (Thymallus arcticus) и щуки (Esox lucius) отбирали в районе ранее зарегистрированного повышенного содержания урана в воде р. Енисей (вблизи радиоактивных сбросов Горно-химического комбината Росатома). Показано, что уран способен эффективно накапливаться из воды в биомассе всех исследованных гидробионтов. Максимальные коэффициенты накопления (КН) урана получены для водного мха, что многократно превышает КН урана для зообентоса и мышечной ткани рыб. Средние значения КН урана для зообентоса статистически значимо превышают КН в мышцах рыб за весь период наблюдения. Не выявлено статистически значимых отличий в накоплении урана рыбами разного трофического уровня (хариус и щука)
The aim of the research was a comparative evaluation of the intensity of uranium-238 accumulation in the biomass of aquatic organisms, occupying different trophic levels in the ecosystem of the Yenisei river. Previously, uranium-238 at concentrations higher than the background ones was detected in water and sediment samples of the Yenisei River collected close to the discharge site of one of the Rosatom facilities (the Mining-and-Chemical Combine). However, radioecological studies of the Yenisei River ecosystem have not focused on uranium isotopes in aquatic organisms so far. The toxic effects of uranium on living organisms are known to be based on its both radioactive and chemical properties. We conducted a study on accumulation of uranium-238 in aquatic organisms at different trophic levels in the Yenisei River ecosystem between 2010 and 2013. We collected samples of aquatic moss (Fointinalis antipyretica), zoobenthos (Philolimnogammarus viridis and Ph. cyaneus), arctic grayling (Thymallus arcticus), and pike (Esox lucius) from the Yenisei region at a distance of 85-90 km downstream of Krasnoyarsk (5-10 km downstream of the radioactive discharge of the Mining-and-Chemical Combine). Data on samples are shown in Table 1. We determined uranium concentration in the samples of aquatic organisms by neutron activation analysis, in water - by ICP-MS (Table 2). The study shows that uranium can be effectively concentrated from water and accumulate in the biomass of all aquatic organisms used in experiments. The highest uranium concentration factors (CFs) were obtained for aquatic moss, and they were several times higher than the uranium CFs for zoobenthos and fish muscles. Based on the uranium concentration from water, all aquatic organisms of the Yenisei River used in this study can be ranked as follows: aquatic moss > gammarids > grayling = pike. No statistically significant difference has been found between uranium accumulation by fish of different trophic levels (Arctic grayling and pike). The uranium CFs obtained in this study is comparable with the literature data on the CFs of artificial radionuclides for aquatic moss and fish of the Yenisei River

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Держатели документа:
Институт биофизики Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Болсуновский, Александр Яковлевич; Трофимова, Елена Александровна; Дементьев, Дмитрий Владимирович; Карпов, Антон Дмитриевич; Институт биофизики Сибирского отделения Российской Академии наук (Красноярск)

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20.

Experimental modeling of the influence of the rise in average summer temperatures on carbon circulation in tundra ecosystems / Y. V. Barkhatov [et al.] // Dokl. Earth Sci. - 2016. - Vol. 471, Is. 1. - P1168-1170, DOI 10.1134/S1028334X16110106 . - ISSN 1028-334X
Кл.слова (ненормированные):
Carbon dioxide -- Ecology -- Landforms -- Carbon fluxes -- Climate condition -- Comparative evaluations -- Experimental modeling -- Physical simulation -- Soil respiration -- Summer temperature -- Temperature rise -- Ecosystems
Аннотация: A sealed vegetation chamber was designed and constructed for physical simulation of climate conditions in the Subarctic zone during the spring–summer time. The small laboratory tundra-simulating ecosystem (TSE) was created for comparative evaluation of the rates of soil respiration and of the total balance of carbon fluxes in tundra ecosystems. The test experiment was performed to study the TSE response to a temperature rise in air and soil by 2°C in terms of the intensity of the СО2 flux. It was shown that this increase in temperature would cause a pronounced shift in the balance of СО2 production and utilization in the ecosystem from near-zero values to a stable generation of 24 ?mol/h of CO2 per 1 kg of dry biomass. © 2016, Pleiades Publishing, Ltd.

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Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Barkhatov, Y. V.; Tikhomirov, A. A.; Ushakova, S. A.; Shikhov, V. N.; Bartsev, S. I.; Degermendzhi, A. G.

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