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Global minimal model of perennial dynamics of carbon in biosphere / S. I. Bartsev, A. G. Degermendzhi, D. V. Erokhin // Doklady Akademii Nauk. - 2005. - Vol. 401, Is. 2. - С. 233-237 . - ISSN 0869-5652
Кл.слова (ненормированные):
Atmospheric temperature -- Carbon -- Climatology -- Ecology -- Greenhouse effect -- Thermal effects -- Biosphere -- Carbon perennial dynamics -- Biology
Аннотация: The suggested model is not intended for describing most probable biosphere dynamics but only for estimating the possibility of catastrophic variant of biosphere dynamics development at antropogenic CO2 emission into atmosphere due to different temperature dependences for key biological biosphere component growth. The main result is demonstration of the possibility of irreversible climate changes and biosphere destruction resulting from interaction of biological processes with greenhouse effect.

Scopus
Держатели документа:
Inst. Biofiziki SO RAN, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Bartsev, S.I.; Degermendzhi, A.G.; Erokhin, D.V.

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Distribution and resorption of polymeric microparticles in visceral organs of laboratory animals after intravenous injection / E. I. Shishatskaya [et al.] // Bulletin of Experimental Biology and Medicine. - 2009. - Vol. 148, Is. 5. - P789-793, DOI 10.1007/s10517-010-0817-3 . - ISSN 0007-4888
Кл.слова (ненормированные):
14C -- Intravenous injection -- Microparticles -- Resorbable polyhydroxybutyrate -- Visceral tissues -- carbon 14 -- microsphere -- polyhydroxyaminobutyric acid -- polymer -- unclassified drug -- animal experiment -- animal tissue -- article -- biocompatibility -- biodegradability -- body growth -- controlled drug release -- controlled study -- degradation kinetics -- drug delivery system -- drug dosage form -- experimental animal -- female -- liver parenchyma -- molecular weight -- nonhuman -- particle size -- physical development -- radioactivity -- rat -- spleen -- tissue distribution -- tissue structure -- Animals -- Animals, Laboratory -- Carbon Radioisotopes -- Female -- Injections, Intravenous -- Particle Size -- Polymers -- Rats -- Rats, Wistar -- Tissue Distribution -- Viscera -- Animalia
Аннотация: Microparticles obtained by using 14C-labeled resorbable hydroxyaminobutyric acid polymer were injected into the caudal vein of laboratory animals without negative aftereffects for their growth and development and without changes in the macro- and microstructure of organs and tissues. The distribution of microparticles in the viscera and the dynamics of accumulation of carbon-containing polymer degradation products in the viscera were studied. The main targets for the particles are liver tissues, as well as renal and splenic tissues. The polymeric matrix of the microparticles is most actively destroyed in the spleen and liver. The presence of high-molecular- weight polymeric matrix in organs indicates the integrity of microparticles and the possibility of long-term (up to 12 weeks) functioning of polymeric particles in vivo. В© 2009 Springer Science+Business Media, Inc.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Division of Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Institute of Basic Biology and Biotechnology, Siberian Federal University, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Shishatskaya, E.I.; Goreva, A.V.; Voinova, O.N.; Kalacheva, G.S.; Volova, T.G.

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Evaluation of antitumor activity of rubomycin deposited in absorbable polymeric microparticles / E. I. Shishatskaya [et al.] // Bulletin of Experimental Biology and Medicine. - 2008. - Vol. 145, Is. 3. - P358-361, DOI 10.1007/s10517-008-0091-9 . - ISSN 0007-4888
Кл.слова (ненормированные):
Absorbable polymers -- Ehrlich's ascitic carcinoma -- Microencapsulation -- Polyhydroxybutyrate -- Rubomycin -- poly(3 hydroxybutyric acid) -- polymer -- rubomycin -- animal cell -- animal experiment -- animal model -- antineoplastic activity -- article -- Bagg albino mouse -- cancer inhibition -- cancer mortality -- cancer survival -- controlled study -- drug delivery system -- Ehrlich ascites tumor -- microencapsulation -- mouse -- nonhuman -- polymerization -- survival rate -- tumor cell -- tumor volume -- Absorption -- Animals -- Antibiotics, Antineoplastic -- Carcinoma, Ehrlich Tumor -- Daunorubicin -- Hydroxybutyrates -- Mice -- Mice, Inbred BALB C -- Microspheres -- Polyesters -- Mus
Аннотация: An experimental dosage form of rubomycin is developed: the drug is incorporated in absorbable polymeric (polyhydroxybutyrate) matrix in the form of microparticles. Antitumor efficiency of this rubomycin dosage form was studied in laboratory mice with transplanted Ehrlich ascitic carcinoma. Rubomycin deposited in polymeric microparticles exhibited pronounced antitumor activity, inhibited the proliferative activity of Ehrlich ascitic carcinoma, and improved survival of mice with tumors. This dosage form of the drug can be used for local injections. В© Springer Science+Business Media, Inc. 2008.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Division of Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
International Center for Studies of Critical Conditions, Presidium of Krasnoyarsk Research Center of Siberian Division of Russian Academy of Sciences, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Shishatskaya, E.I.; Goreva, A.V.; Voinova, O.N.; Inzhevatkin, E.V.; Khlebopros, R.G.; Volova, T.G.

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Tissue reaction to intramuscular injection of resorbable polymer microparticles / E. I. Shishatskaya [et al.] // Bulletin of Experimental Biology and Medicine. - 2007. - Vol. 144, Is. 6. - P786-790, DOI 10.1007/s10517-007-0432-0 . - ISSN 0007-4888
Кл.слова (ненормированные):
Microencapsulation -- Polyhydroxybutyrate -- Resorbable polymers -- Tissue reaction -- poly(3 hydroxybutyric acid) -- polymer -- animal experiment -- animal tissue -- article -- cell infiltration -- controlled study -- drug delivery system -- drug formulation -- female -- giant cell -- inflammation -- macrophage -- microencapsulation -- nonhuman -- rat -- tissue reaction -- Absorbable Implants -- Animals -- Drug Compounding -- Female -- Foreign-Body Reaction -- Injections, Intramuscular -- Microspheres -- Polyesters -- Rats -- Rats, Wistar
Аннотация: Tissue reaction to implantation of polymeric microparticles from resorbable polymer (polyhydroxybutyrate) is characterized by slight inflammatory reaction and pronounced progressive macrophage infiltration with the presence of mono-and multinuclear foreign body giant cells resorbing the polymeric matrix. No fibrous capsules were formed around the polymeric microparticles; neither necrosis nor other adverse morphological changes and tissue transformation in response to implantation of the PHB microparticles were recorded. The results indicate good prospects of using polyhydroxybutyrate for the construction of long-acting dosage forms as microparticles for intramuscular injection. В© Springer Science+Business Media, Inc. 2007.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Division of Russian Academy of Sciences, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Shishatskaya, E.I.; Voinova, O.N.; Goreva, A.V.; Mogilnaya, O.A.; Volova, T.G.

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Amino acid composition of epilithic biofilm and benthic animals in a large Siberian river / A. A. Kolmakova [et al.] // Freshwater Biology. - 2013. - Vol. 58, Is. 10. - P2180-2195, DOI 10.1111/fwb.12200 . - ISSN 0046-5070
Кл.слова (ненормированные):
Amino acids -- Epilithic microalgae and cyanobacteria -- Nutritive quality -- River ecosystem -- Zoobenthos
Аннотация: We studied amino acid (AA) composition of epilithic biofilms and zoobenthos near the shore at a middle section of the Yenisei River (Siberia, Russia). We hypothesised that there was an imbalance between the composition and content of amino acids in the biofilm and its consumers, the zoobenthos, as well as between those in the zoobenthos and fish. Based on monthly sampling from 2007 to 2010, there was seasonal variation in AA profiles in the epilithic biofilms, probably caused by the succession of microalgal and cyanobacterial species. Overall, there was an imbalance in the percentage of the essential amino acids (lysine and histidine) between benthic animals and their food (the epilithic biofilm), which suggests that benthic animals may be limited by food quality. Moreover, the zoobenthos had a significantly higher content of AA, relative to carbon, than the biofilm. Based on sampling in 2012, there was an imbalance between the AA profiles of zoobenthos and that of their main consumer, the Siberian grayling (Thymallus arcticus), particularly in the percentages of two essential amino acids, lysine and leucine. In terms of overall content of essential amino acids, the nutritional value to fish of gammarids, which have recently invaded the river, was significantly lower than that of indigenous taxa, trichopteran and chironomid larvae. В© 2013 John Wiley & Sons Ltd.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Science, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

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

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Water moss as a food item of the zoobenthos in the Yenisei River / G. S. Kalachova [et al.] // Central European Journal of Biology. - 2011. - Vol. 6, Is. 2. - P236-245, DOI 10.2478/s11535-010-0115-0 . - ISSN 1895-104X
Кл.слова (ненормированные):
Acetylenic fatty acids -- Bryophytes -- Fontinalis -- Gammarids -- Stable isotope analysis -- Trichopterans -- Animalia -- Bryophyta -- bryophytes -- Chironomidae -- Ephemeroptera -- Eulimnogammarus viridis -- Fontinalis -- Fontinalis antipyretica -- Gammaridae -- Invertebrata -- Trichoptera
Аннотация: Bryophytes are abundant in streams and are a habitat for many invertebrates, but their contribution to the diet of fluvial zoobenthos is still debated. To estimate the amount of bryophyte-derived organic matter assimilated by benthic invertebrates, we used a combination of fatty acid and stable isotope analyses during a four-year monthly study of a littoral site in the Yenisei River (Siberia, Russia). Acetylenic acids, which are highly specific biomarkers of the water moss Fontinalis antipyretica, were found in lipids of all dominant benthic animals: gammarids, ephemeropterans, chironomids and trichopterans. The dominant zoobenthic species, Eulimnogammarus viridis, had maximum levels of the biomarkers in its biomass during winter, and minimum levels in summer. The zoobenthos in the studied site regularly consume and assimilate bryophyte-derived organic matter as a minor supplemental food. This consumption increases in winter, when the main food source of the zoobenthos, epilithic biofilms, are probably scarce. В© 2010 Versita Warsaw and Springer-Verlag Wien.

Scopus
Держатели документа:
Institute of Biophysics of Siberian Branch of the Russian Academy of Science, 660036 Krasnoyarsk, Russian Federation
Siberian Federal University, 660041 Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

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

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Fatty acid analyses reveal high degrees of omnivory and dietary plasticity in pond-dwelling tadpoles / M. R. Whiles [et al.] // Freshwater Biology. - 2010. - Vol. 55, Is. 7. - P1533-1547, DOI 10.1111/j.1365-2427.2009.02364.x . - ISSN 0046-5070
Кл.слова (ненормированные):
Anura -- Diet -- Food web -- Foraging -- Gut contents -- Omnivory -- Selective feeding -- Amphibia -- Anura -- Bacteria (microorganisms) -- Hexapoda -- Lithobates -- Pseudacris crucifer
Аннотация: 1. Understanding the trophic relationships of consumers is central to ecology, but constructing meaningful food webs is often difficult because of a lack of detailed information on consumption versus assimilation and high degrees of omnivory.2. We used fatty acid analyses to examine the trophic relationships of three common larval anurans (Pseudacris crucifer, Lithobates catesbeianus and Lithobates clamitans) that are often classified as grazers or detritivores. Tadpoles and potential food sources were sampled in four ponds in southern Illinois and analysed for fatty acid composition. Single linkage cluster analysis was then used to compare fatty acid profiles among tadpole gut contents, tadpole muscle tissues and available food resources.3. Diets varied among species and within species among ponds, but organic sediments consistently contributed most to the fatty acid composition of the gut contents of all species. Fatty acid profiles also indicated that larval insects and phytoplankton were consumed by both L. catesbeianus and L. clamitans in one pond, while L. clamitans and P. crucifer consumed mainly periphyton along with sediments in another pond, and these diet differences appeared linked to physical differences among ponds, with periphyton and/or phytoplankton contributing more to tadpole diets in less shaded ponds.4. The fatty acid composition of muscle tissues of L. clamitans, the dominant tadpole in these systems, indicated that plant detritus and bacteria, which were the dominant components of organic sediments in the ponds, were common components of the assimilatory diet.5. Results demonstrate the utility of fatty acid analyses for assessing both consumption and assimilation. The tadpole assemblages we examined derive much of their energy from heterotrophic and allochthonous sources and exhibit high dietary plasticity. This information will allow for more accurate and comprehensive assessments of trophic interactions in freshwater habitats, as well as aid in amphibian conservation, management and captive propagation efforts. В© 2009 Blackwell Publishing Ltd.

Scopus
Держатели документа:
Department of Zoology, Center for Ecology, Illinois Fisheries and Aquaculture Center, Southern Illinois University, Carbondale, IL, United States
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
Department of Biology, Clarion University of Pennsylvania, Clarion, PA, United States : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Whiles, M.R.; Gladyshev, M.I.; Sushchik, N.N.; Makhutova, O.N.; Kalachova, G.S.; Peterson, S.D.; Regester, K.J.

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Seasonal variations of metal concentrations in periphyton and taxonomic composition of the algal community at a Yenisei River littoral site / O. V. Anishchenko [et al.] // Central European Journal of Biology. - 2010. - Vol. 5, Is. 1. - P125-134, DOI 10.2478/s11535-009-0060-y . - ISSN 1895-104X
Кл.слова (ненормированные):
Heavy metals -- Periphyton -- Seasonal dynamics -- algae -- Chlorophyta -- Cyanobacteria -- Ulothrix zonata
Аннотация: The concentrations of metals K, Na, Ca, Mg, Fe, Mn, Zn, Cu, Ni, Pb, Co and Cr, in the water and periphyton (epilithic algal communities) were studied at a site in the middle stream of the Yenisei River (Siberia, Russia) during three years using monthly sampling frequencies. Despite considerable seasonal variations in aquatic concentrations of some metals, there was no correlation between metal contents in the water and in periphyton. Seasonal concentration variations of some metals in periphyton were related to the species (taxonomic) composition of periphytic microalgae and cyanobacteria. Enhanced levels of Ni and Co in periphyton in late autumn, winter, and early spring were likely caused by the predominance of cyanobacteria in the periphytic community, and annual maximum levels of K in periphyton in late spring and early summer were attributed to the domination of Chlorophyta, primarily Ulothrix zonata. В© Versita Warsaw and Springer-Verlag Berlin Heidelberg.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch of Russian Academy of Sciences, 660036 Krasnoyarsk, Russian Federation
Siberian Federal University, 660041 Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Anishchenko, O.V.; Gladyshev, M.I.; Kravchuk, E.S.; Ivanova, E.A.; Gribovskaya, I.V.; Sushchik, N.N.

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Comparison of seasonal dynamics of the essential PUFA contents in benthic invertebrates and grayling Thymallus arcticus in the Yenisei river / N. N. Sushchik [et al.] // Comparative Biochemistry and Physiology - B Biochemistry and Molecular Biology. - 2006. - Vol. 145, Is. 3-4. - P278-287, DOI 10.1016/j.cbpb.2006.05.014 . - ISSN 1096-4959
Кл.слова (ненормированные):
Benthic invertebrates -- Grayling -- Polyunsaturated fatty acids -- Riverine food web -- essential fatty acid -- long chain fatty acid -- polyunsaturated fatty acid -- Amphipoda -- animal tissue -- annelid worm -- article -- benthos -- Chironomidae -- comparative study -- controlled study -- dominant inheritance -- ecosystem -- evolution -- fatty acid analysis -- female -- fish -- fly -- invertebrate -- larva -- male -- metabolic regulation -- nonhuman -- nutrient dynamics -- priority journal -- river -- seasonal variation -- statistical significance -- Thymallus arcticus -- Animals -- Fatty Acids, Unsaturated -- Food Chain -- Gastrointestinal Contents -- Invertebrates -- Muscles -- Rivers -- Russia -- Salmonidae -- Seasons -- Amphipoda -- Chironomidae -- Diptera -- Gammaridae -- Invertebrata -- Oligochaeta (Metazoa) -- Thymallus arcticus -- Trichoptera
Аннотация: Seasonal dynamics of contents of essential polyunsaturated fatty acids (PUFA) in dominant groups of benthic invertebrates: gammarids (Gammaridae, Amphipoda), oligochaetes (Oligochaeta), chironomid larvae (Chironomidae, Diptera) and caddisfly larvae (Trichoptera), and dominant benthivorous fish, Siberian grayling Thymallus arcticus, have been studied in ecosystem of the large Siberian river. During the year of the study most benthic invertebrate taxa showed significant variations in the contents of both C-18 and long chain C-20-22 PUFAs. In contrast, the fish, which consumed the zoobenthos, had no significant seasonal variations in long chain PUFAs' contents. Thereby, the fish, as organisms of relatively higher evolution level than invertebrates, was supposed to have more strict metabolic control of long chain PUFAs' contents. Evidence was obtained that the studied fish species, grayling, may be capable to convert dietary EPA into DHA. В© 2006 Elsevier Inc. All rights reserved.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Science, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Krasnoyarsk State University, Svobodny av. 79, Krasnoyarsk, 660041, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Sushchik, N.N.; Gladyshev, M.I.; Kalachova, G.S.; Makhutova, O.N.; Ageev, A.V.

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10.

Associating particulate essential fatty acids of the ?3 family with phytoplankton species composition in a Siberian reservoir / N. N. Sushchik [et al.] // Freshwater Biology. - 2004. - Vol. 49, Is. 9. - P1206-1219, DOI 10.1111/j.1365-2427.2004.01263.x . - ISSN 0046-5070
Кл.слова (ненормированные):
Cyanobacteria -- Diatoms -- Fatty acids -- Food quality -- Species composition -- cyanobacterium -- diatom -- fatty acid -- food quality -- food web -- growing season -- phytoplankton -- reservoir -- Eurasia -- Siberia -- Anabaena -- Anabaena flos-aquae -- Aphanizomenon -- Aphanizomenon flos-aquae -- Bacillariophyta -- Cyanobacteria -- Cyclotella -- Dinophyceae -- Flos -- Microcystis -- Microcystis aeruginosa -- Planktothrix -- Planktothrix agardhii -- Stephanodiscus
Аннотация: 1. We studied variation in the composition of fatty acids in the seston of a small freshwater reservoir with changes in phytoplankton composition during four growth seasons. We focused on the dynamics of the ?3 fatty acids because of their potential importance for zooplankton nutrition. 2. Total diatoms were related to the 20:5?3 fatty acid (eicosapentaenoic, EPA) content in seston. Among two dominant diatom genera, Cyclotella was not associated with EPA content. In contrast, there was a significant correlation between Stephanodiscus and the percentage contribution and content of EPA throughout the study. Hence, freshwater diatoms can differ strongly in content of the essential EPA. 3. We considered abundant cyanobacteria as a potential source of 18:3?3 fatty acid (linolenic, ALA) to aquatic food webs. Among four dominant cyanobacteria species, two (Anabaena flos-aquae and Planktothrix agardhii) showed significant correlation with the ALA content of the seston, while the other two (Aphanizomenon flos-aquae and Microcystis aeruginosa) did not. 4. Dinophyta had a relatively high level of 22:6?3 (docosahexaenoic, DHA) for freshwater species and can be also a source of EPA to aquatic food webs. 5. Our results show that various species of diatoms as well as cyanobacteria can be of contrasting nutritional value for zooplankton because of their different content of the essential PUFAs. Diatoms, which are low in EPA, could not be considered as a valuable food, while some field populations of cyanobacteria might be valuable sources of essential ALA.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, Russian Federation
Krasnoyarsk State Agric. University, Krasnoyarsk, Russian Federation
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

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

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11.

Particulate fatty acids in two small Siberian reservoirs dominated by different groups of phytoplankton / N. N. Sushchik [et al.] // Freshwater Biology. - 2003. - Vol. 48, Is. 3. - P394-403, DOI 10.1046/j.1365-2427.2003.01009.x . - ISSN 0046-5070
Кл.слова (ненормированные):
Cyanobacteria -- Daphnids -- Diatoms -- Fatty acids -- alga -- cyanobacterium -- fatty acid -- periodicity -- phytoplankton -- reservoir -- seston -- algae -- Bacillariophyta -- Chlorophyta -- Cyanobacteria -- Daphnia -- Dinophyceae -- Euglenida -- Eukaryota
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 20:5?3 [eicosapentanoic acid (EPA)] was low. The correlation between this polyunsaturated FA (PUFA) and diatom biomass was not significant in either reservoir. The percentage of 20:5?3 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: 18:3?3 and 18:2?6. 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 20:5?3 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 18:3?3 in the seston. The cyanobacteria were a probable source of this ?3 FA for Daphnia. We conclude that EPA is not always important for Daphnia populations although, in such cases, some other PUFA (e.g. 18:3?3) might be related to their growth.

Scopus
Держатели документа:
Inst. Biophys. Siberian Br. Russ. A., Akademgorodok, Krasnoyarsk, Russian Federation
Krasnoyarsk State University, Svobodny av., Krasnoyarsk, Russian Federation
Krasnoyarsk Stt. Agric. University, Mira av., Krasnoyarsk, Russian Federation
Inst. Biophys. Siberian Br. Russ. A., Akademgorodok, Krasnoyarsk 660036, Russian Federation : 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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12.

A study of forest vegetation dynamics in the south of the Krasnoyarskii Krai in spring / M. Chernetskiy [et al.] // Advances in Space Research. - 2011. - Vol. 48, Is. 5. - P819-825, DOI 10.1016/j.asr.2011.04.032 . - ISSN 0273-1177
Кл.слова (ненормированные):
EVI -- Forestry -- MODIS -- NDVI -- Remote sensing -- Vegetation phenology -- Accurate measurement -- Annual time series -- Carbon exchange -- Data series -- Dynamic state -- Enhanced vegetation index -- EVI -- Forest vegetation -- Global scale -- Growth dynamics -- Interannual variability -- Moderate resolution imaging spectroradiometer -- MODIS -- NDVI -- Normalized difference vegetation index -- Principal components analysis -- Remote sensing applications -- Remote sensing data -- Satellite data -- Spatial structure -- Spring season -- Terrestrial ecosystems -- Vegetation dynamics -- Vegetation phenology -- Biology -- Climate models -- Dynamics -- Ecosystems -- Estimation -- Forestry -- Monitoring -- Principal component analysis -- Radiometers -- Remote sensing -- Satellite imagery -- Timber -- Time series -- User interfaces -- Vegetation -- Carbon -- Ecosystems -- Forests -- Image Analysis -- Plants -- Remote Sensing -- Time Series Analysis
Аннотация: Remote sensing applications have greatly enhanced ability to monitor and manage in the areas of forestry. Accurate measurements of regional and global scale vegetation dynamics (phenology) are required to improve models and understanding of inter-annual variability in terrestrial ecosystem carbon exchange and climate-biosphere interactions. Study of vegetation phenology is required for understanding of variability in ecosystem. In this paper, monitoring of vegetation dynamics using time series of satellite data is presented. Vegetation variability (vegetation rate) in different topoclimatic areas is investigated. Original software using IDL interactive language for processing of satellite long-term data series was developed. To investigate growth dynamics vegetation rate inferred from remote sensing was used. All estimations based on annual time series of Moderate Resolution Imaging Spectroradiometer (MODIS) imagery. Vegetation rate for Enhanced Vegetation Index (EVI) and Normalized Difference Vegetation Index (NDVI) was calculated using MODIS data. The time series covers spring seasons of each of 9 years, from 2000 to 2008. Comparison of EVI and NDVI derived growth rates has shown that NDVI derived rates reveal spatial structure better. Using long-term data of vegetation rates variance was estimated that helps to reveal areas with anomalous growth rate. Such estimation shows sensitivity degree of different areas to different topoclimatic conditions. Woods of heights depend on spatial topoclimatic variability unlike woods of lowlands. Principal components analysis shows vegetation with different rate conditions. Also it reveals vegetation of same type in areas with different conditions. It was demonstrated that using of methods for estimating the dynamic state of vegetation based on remote sensing data enables successful monitoring of vegetation phenology. В© 2011 COSPAR. Published by Elsevier Ltd. All rights reserved.

Scopus
Держатели документа:
Institute of Biophysics of SB RAS, Akademgorodok 50/50, Krasnoyarsk 660036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Chernetskiy, M.; Pasko, I.; Shevyrnogov, A.; Slyusar, N.; Khodyayev, A.

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13.

Long-term dynamics of chlorophyll concentration in the ocean surface layer (by space data) / A. Shevyrnogov, G. Vysotskaya // Advances in Space Research. - 2007. - Vol. 39, Is. 1. - P197-202, DOI 10.1016/j.asr.2006.10.015 . - ISSN 0273-1177
Кл.слова (ненормированные):
Dynamics -- Ocean -- Phytopigment -- Climatology -- Concentration (process) -- Hydrology -- Marine biology -- Ocean currents -- Plants (botany) -- Biosphere -- Ocean -- Phytopigments -- Chlorophyll
Аннотация: To preserve the biosphere and to use it efficiently, it is necessary to gain a deep insight into the dynamics of the primary production process on our planet. Variability of chlorophyll concentration in the ocean is one of the most important components of this process. These investigations are, however, very labor-consuming, because of the difficulties related to the accessibility of the water surface and its large size. In this work long-term changes in chlorophyll concentration in the surface layer of the ocean have been analyzed on the basis of the CZCS data for 7.5 years from 1979 to 1986 and the SeaWiFS data from 1997 to 2004. It has been shown that the average chlorophyll concentration calculated in all investigated areas varies moderately. However, when analyzing spatially local trends, the areas have been detected that have significant rise and fall of chlorophyll concentrations. Some interesting features of the long-term dynamics of chlorophyll concentration have been found. The opposite directions of long-term trends (essential increase or decrease) cannot be explained only by large-scale hydrological phenomena in the ocean (currents, upwellings, etc.). The measured chlorophyll concentration results from the balance between production and destruction processes. Which process dominates is determined by various hydrophysical, hydrobiological, and climatic processes, leading to sharp rises or falls of the concentration. It is important to estimate the scale of the areas in which this or that process dominates. Therefore, the study addresses not only the dynamics of the mean value but also the dynamics of the areas in which the dominance of certain factors has led to a sharp fall or rise in chlorophyll concentration. Thus, the obtained results can be used to estimate long-term changes in the ocean biota. В© 2006 COSPAR.

Scopus
Держатели документа:
Institute of Biophysics of SB RAS, Krasnoyarsk, 660036 Akademgorodok, Russian Federation
Institute of Computational Modeling of SB RAS, Krasnoyarsk, 660036 Akademgorodok, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Shevyrnogov, A.; Vysotskaya, G.

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14.

Possibility of Salicornia europaea use for the human liquid wastes inclusion into BLSS intrasystem mass exchange / N. A. Tikhomirova [et al.] // Acta Astronautica. - 2008. - Vol. 63, Is. 7-10. - P1106-1110, DOI 10.1016/j.actaastro.2008.01.003 . - ISSN 0094-5765
Кл.слова (ненормированные):
BLSS -- NaCl turnover -- Salicornia europaea -- Space biology -- Acids -- Amides -- Arsenic compounds -- Biochemical engineering -- Biochemistry -- Biomass -- Cellulose -- Curing -- Drying -- Environmental engineering -- Fatty acids -- Garnets -- Health -- Human engineering -- Lipids -- Mineralogy -- Minerals -- Mining -- Nitrates -- Nitrogen -- Plants (botany) -- Polysaccharides -- Polyvinyl alcohols -- Renewable energy resources -- Silica -- Silicate minerals -- Sodium -- Sodium chloride -- Solutions -- Sugar (sucrose) -- Sugars -- Waste utilization -- Biochemical composition -- Biochemical substances -- Bioregenerative life support systems (BLSS) -- Component conditions -- Crude protein (CP) -- Dry weight (DW) -- Essential fatty acids -- Europaea -- H igh concentrations -- Human urine -- Linoleic acid (LA) -- Linolenic -- Lipid content -- Liquid wastes -- Mass exchanges -- Mineral compositions -- Nitrate nitrogen -- Nitrogen nutrition -- Non saturation -- Physico chemical processes -- Plant functions -- Plant lipids -- Reduced nitrogen -- Salicornia europaea -- Soluble sugars -- Wide spectrum -- Nonmetals -- Amides -- Arsenic -- Biochemistry -- Biomass -- Biotechnology -- Cellulose -- Curing -- Drying -- Fatty Acids -- Lipids -- Nonmetals -- Plants -- Polysaccharides -- Sugars
Аннотация: One of the ways of solving the problem of the human liquid wastes utilization in bioregenerative life support systems (BLSS) can be the use of halophytic vegetable plant Salicornia europaea capable of accumulating sodium chloride in rather high concentrations. Since the most specific higher plant function in BLSS, which at present cannot be substituted by physicochemical processes, appears to be the biosynthesis of a wide spectrum of nutritive substances necessary for a human, the object of the given work was the investigation of the S. europaea productivity, biochemical and mineral composition when grown under close to optimal BLSS vegetative component conditions. As the use of human urine after its preliminary physicochemical processing is supposed to be the mineral solution basis for the S. europaea cultivation, it is necessary to clear up the effect of reduced nitrogen on plants growth. Ground research was carried out. Biochemical composition of the S. europaea edible part showed that crude protein was contained in the highest degree. At that the content of crude protein (24% per dry weight) and cellulose (4.7% per dry weight) was higher in the plants grown on solutions containing amide nitrogen in comparison with the plants grown on solutions with nitrate nitrogen (15.4%-3.1% correspondingly). The water-soluble sugar contents were not high in the S. europaea edible part and depending on the nitrogen nutrition form they amounted to 1.1% (amide nitrogen) and 1.5% (nitrate nitrogen). The polysaccharide number (except cellulose) was rather higher and varied from 7.7% to 8.2%. Although the lipid content in the S. europaea plants was relatively low (7% per dry weight), it was shown that the plant lipids are characterized by a high nonsaturation degree mainly due to alpha linolenic and linoleic acids. Nitrogen nutrition form did not significantly affect the S. europaea productivity, and dry edible biomass of one plant was 8.6 g. Sodium and its concentrations predominated in the plant mineral composition and amounted in average to 9% per dry weight. Thus the S. europaea being the vegetable plant it can be the source of several biochemical substances and essential fatty acids. The present work also considers the influence of nitrate and amide forms of nitrogen on S. europaea biochemical and mineral composition. В© 2008 Elsevier Ltd. All rights reserved.

Scopus
Держатели документа:
Institute of Biophysics, Russian Academy of Sciences, Siberian Branch, Akademgorodok, 660036 Krasnoyarsk, Russian Federation
LGCB, Universite B. Pascal, CUST, BP206, 63174 Aubie're, cedex, France : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Tikhomirova, N.A.; Ushakova, S.A.; Tikhomirov, A.A.; Kalacheva, G.S.; Gros, J.-B.

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15.

Light intensity and production parameters of phytocenoses cultivated on soil-like substrate under controled environment conditions / A. A. Tikhomirov [et al.] // Advances in Space Research. - 2003. - Vol. 31, Is. 7. - P1775-1780, DOI 10.1016/S0273-1177(03)80020-0 . - ISSN 0273-1177
Кл.слова (ненормированные):
Bacteria -- Biology -- Crops -- Photosynthesis -- Substrates -- Light intensity -- Space research -- biosphere -- Biomass -- Carbon Dioxide -- Colony Count, Microbial -- Culture Media -- Ecological Systems, Closed -- Enterobacteriaceae -- Life Support Systems -- Light -- Photosynthesis -- Plant Transpiration -- Raphanus -- Soil Microbiology -- Triticum -- Water Microbiology
Аннотация: To increase the degree of closure of biological life support systems of a new generation, we used vermicomposting to involve inedible phytomass in the intra-system mass exchange. The resulting product was a soil-like substrate, which was quite suitable for growing plants (Manukovsky et al. 1996, 1997). However, the soil-like substrate can be regarded as a candidate for inclusion in a system only after a comprehensive examination of its physical, chemical, and other characteristics. An important criterion is the ability of the soil-like substrate to supply the necessary mineral elements to the photosynthesizing component under the chosen cultivation conditions. Thus, the purpose of this work was to study the feasibility of enhancing the production activity of wheat and radish crops by varying the intensity of photosynthetically active radiation, without decreasing the harvest index. The increase of light intensity from 920 to 1150 ?molВ·m -2В·s -1 decreased the intensity of apparent photosynthesis of the wheat crops and slightly increased the apparent photosynthesis of the radish crops The maximum total and grain productivity (kg/m 2) of the wheat crops was attained at the irradiance of 920 ?molВ·m -2В·s -1. Light intensity of 1150 ?molВ·m -2В·s -1 decreased the productivity of wheat plants and had no significant effect on the productivity of the radish crops (kg/m 2) as compared to 920 ?molВ·m 2В·s -1. The qualitative and quantitative composition of microflora of the watering solution and substrate was determined by the condition of plants, developmental phase and light intensity. By the end of wheat growth under 1150 ?molВ·m -2В·s -1 the numbers of bacteria of the coliform family and phytopathogenic bacteria in the watering solution and substrate were an order of magnitude larger than under other illumination conditions. The obtained data suggest that the cultivation of plants in a life support system on soil-like substrate from composts has a number of advantages over the cultivation on neutral substrates, which require continual replenishment of the plant nutrient solution from the system's store to complement the macro- and microelements. Yet, a number of problems arise, including those related to the controlling of the production activity of the plants by the intensity of photosynthetically active radiation. It is essential to understand why the intensity of production processes is limited at higher irradiation levels and to overcome the factors responsible for this, so that the soil-like substrate could have an even better chance in the competition for the best plant cultivation technology to be used in biological life support systems. В© 2003 COSPAR. Published by Elsevier Science Ltd. All rights reserved.

Scopus
Держатели документа:
Institute of Biophysics, RAS SB, Krasnoyarsk 660036, Russian Federation
Tomsk State University, Lenin street, 36, Tomsk 634050, Russian Federation
LGCB, Universte B. Pascal, BP206, Aubiere cedex 63174, France
ESA/ESTEC, Noordwijk, AG 2200, Netherlands : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Tikhomirov, A.A.; Ushakova, S.A.; Gribovskaya, I.A.; Tirranen, L.S.; Manukovsky, N.S.; Zolotukhin, I.G.; Karnachuk, R.A.; Gros, J.-B.; Lasseur, Ch.

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16.

Spectral composition of light and plant productivity / A. A. Tikhomirov // Advances in Space Research. - 1996. - Vol. 18, Is. 4-5. - P259-263 . - ISSN 0273-1177
Кл.слова (ненормированные):
article -- biology -- cucumber -- growth, development and aging -- illumination -- light -- maize -- photon -- photosynthesis -- plant -- radiation exposure -- spectroscopy -- sunflower -- tomato -- wheat -- Cucumis sativus -- Helianthus -- Light -- Lighting -- Lycopersicon esculentum -- Photobiology -- Photons -- Photosynthesis -- Plants -- Spectrum Analysis -- Triticum -- Zea mays

Scopus
Держатели документа:
Institute of Biophysics, Russian Academy of Sciences, Siberian Branch, Academgorodok, 660036 Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Tikhomirov, A.A.

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17.

Effect of NaCl concentration on productivity and mineral composition of Salicornia europaea as a potential crop for utilization NaCl in LSS / S. A. Ushakova [et al.] // Advances in Space Research. - 2005. - Vol. 36, Is. 7. - P1349-1353, DOI 10.1016/j.asr.2004.09.017 . - ISSN 0273-1177
Кл.слова (ненормированные):
Life support system -- NaCl -- Salicornia europaea -- Space biology -- Calcium -- Concentration (process) -- Minerals -- Photosynthesis -- Plants (botany) -- Salinity measurement -- Sodium chloride -- Vegetation -- Life support systems -- Liquid wastes -- NaCl -- Salicornea europea -- Space biology -- Space research
Аннотация: The accumulation of solid and liquid wastes in manmade ecosystems presents a problem that has not been efficiently solved yet. Urine, containing NaCl, are part of these products. This is an obstacle to the creation of biological systems with a largely closed material cycling, because the amount of solid and liquid wastes in them must be reduced to a minimum. A possible solution to the problem is to select plant species capable of utilizing sufficiently high concentrations of NaCl, edible for humans, and featuring high productivity. Until recently, the life support systems have included the higher plants that were either sensitive to salinization (wheat, many of the legumes, carrot, potato, maize) or relatively salt-resistant (barley, sugar beet, spinach). Salicomia europaea, whose above-ground part is fully edible for humans, is one of the most promising candidates to be included in life support systems. It is reported in the literature that this plant is capable of accumulating up to 50% NaCl (dry basis). Besides, excessive accumulation of sodium ions should bring forth a decrease in the uptake of potassium ions and other biogenic elements. The aim of this work is to study the feasibility of using S. europaea plants in growth chambers to involve NaCl into material cycling. Plants were grown in vegetation chambers at the irradiance of 100 or 150 W/m2 PAR (photosynthetically active radiation) and the air temperature 24 В°C, by two methods. The first method was to grow the plants on substrate - peat. The peat was supplemented with either 3% NaCl (Variant 1) or 6% NaCl (Variant 2) of the oven-dry mass of the peat. The second method was to grow the plants in water culture, using the solution with a full complement of nutrients, which contained 0.0005% of NaCl, 1% or 2%. The study showed that the addition of NaCl to the substrate or to the solution resulted in the formation of more succulent plants, which considerably increased their biomass. The amount of NaCl uptake was the highest in the plants grown in water culture, 2.6 g per plant. As the sodium uptake increased, the consumption of potassium and the sum of the reduced N forms decreased twofold. The uptake of calcium and magnesium by plants decreased as the NaCl concentration increased; the smallest amounts were taken up by S. europaea grown in water culture. Salinity had practically no effect on the uptake of phosphorus and sulfur. Thus, S. europaea is a promising candidate to be included in life support systems; of special interest is further research on growing these plants in water culture. В© 2005 COSPAR. Published by Elsevier Ltd. All rights reserved.

Scopus
Держатели документа:
Institute of Biophysics, Russian Academy of Science, Siberian Branch, Akademgorodok, Krasnoyarsk 660036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Ushakova, S.A.; Kovaleva, N.P.; Gribovskaya, I.V.; Dolgushev, V.A.; Tikhomirova, N.A.

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18.

Dynamics of algal biomass and composition of extracellular free fatty acids in experimental microecosystems / N. N. Sushchik // Biology Bulletin. - 1998. - Vol. 25, Is. 6. - P611-616 . - ISSN 1062-3590
Аннотация: The dynamics of biomass and species composition of microalgae and of composition of extracellular free fatty acids was studied for 98 days in laboratory experimental ecosystems inoculated with water from a forest pond. The microecosystems were kept at two temperature levels: 14-17 and 22-25В°C. During the experiment, a community of planktonic microalgae with the predominance of diatoms was succeeded by a community consisting mostly of green, filamentous algae. The succession of species composition of the algal community was accompanied by changes in the composition of extracellular free fatty acids. Variations of temperature did not markedly affect either the species composition of the microalgal community or the ratio of unsaturated to saturated free fatty acids. В© 1998 MAK Haya/Interperiodica Publishing.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 66036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Sushchik, N.N.

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19.

Dynamics of amino acid composition of the medium during culture of isolated liver and kidneys by the controlled perfusion method / V. A. Barashkov [et al.] // Bulletin of Experimental Biology and Medicine. - 1976. - Vol. 80, Is. 11. - P1305-1307 . - ISSN 0007-4888
Кл.слова (ненормированные):
amino acid -- dog -- in vitro study -- kidney perfusion -- liver perfusion -- theoretical study
Аннотация: The dynamics of the amino acid composition of the medium was investigated during perfusion of the dog liver and kidney for 6 h with a mixture of autogenous plasma and medium No.199 in the ratio of 2:3. During culture of the kidney for 6 h the histidine concentration in the medium increased by 2.2 times compared with initially, the concentration of glutamic acid by 1.7 times, and of alanine and lysine by 1.6 times, whereas the concentrations of arginine, serine, and aspartic acid fell by 3.3 times and those of glutamine with threonine by 2.5 times. During perfusion of the liver the concentration of glutamic acid rose by 2.9 times, of alanine by 2.3 times, cystine by 2.0 times, and glycine by 1.5 times. The concentration of tyrosine fell by half, and that of phenylalanine and serine by 1.4 times. The arginine concentration fell so quickly during perfusion of the liver that by the second hour after the beginning of perfusion no arginine could be found in the medium. The method of amino acid analysis during organ culture as described can be used as a method of developing and correcting culture media.

Scopus
Держатели документа:
Siberian Div., Dept. Biophys., L.V. Kirenskii Inst. Phys., Acad. Sci. USSR, Krasnoyarsk, Russia : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Barashkov, V.A.; Gitel'zon, I.I.; Nefedov, V.P.; Trubachev, I.N.

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20.

Dynamics of amino acid composition of the medium in isolated organ culture by the controlled perfusion method / V. A. Barashkov [et al.] // Bulletin of Experimental Biology and Medicine. - 1975. - Vol. 80, Is. 7. - P759-761 . - ISSN 0007-4888
Кл.слова (ненормированные):
amino acid -- tissue culture medium -- dog -- in vitro study -- organ culture -- organ perfusion -- theoretical study
Аннотация: The dynamics of the amino acid composition of the perfusion fluid was investigated during adequate perfusion of isolated dog organs (the thorax and a complex consisting of the thoracic organs, kidneys, and liver). The concentration of amino acids such as histidine, lysine, and alanine in the perfusion fluid 6 h after the beginning of perfusion of the organ complex was higher, whereas that of arginine, serine, aspartic acid, threonine with glutamine, isoleucine, proline, leucine, and valine was much lower than initially. In experiments on the isolated thorax the dynamics of the amino acid composition of the medium was studied during perfusion for 4 h. The concentration of alanine, lysine, and histidine in the medium increased, whereas those of serine, aspartic acid, isoleucine, tyrosine, and phenylalanine decreased.

Scopus
Держатели документа:
Siberian Div., Dept. Biophys., L.V. Kirenskii Inst. Phys., Acad. Sci. USSR, Krasnoyarsk, Russia : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Barashkov, V.A.; Gitel'zon, I.I.; Nefedov, V.P.; Trubachev, I.N.

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