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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Artamonova V. S., Kolmakova O. V., Kirillova E. A., Makhrov A. A.
Заглавие : Phylogeny of Salmonoid Fishes (Salmonoidei) Based on mtDNA COI Gene Sequences (Barcoding)
Колич.характеристики :15 с
Коллективы : Russian Science Foundation [16-14-10001]
Место публикации : Contemp. Probl. Ecol.: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2018. - Vol. 11, Is. 3. - С. 271-285. - ISSN 1995-4255, DOI 10.1134/S1995425518030022. - ISSN 1995-4263(eISSN)
Примечания : Cited References:102. - We are very grateful to colleagues who helped collect samples: E.G. Berestovskii, I.N. Bolotov, E.A. Borovikova, I.V. Vikhrev, L.A. Glushchenko, V.V. Ignatenko, D.P. Karabanov, A.P. Novoselov, V.M. Spitsyn, V.A. Shirokov, and I.L. Shchurov; employees of Trout Hatchery "Adler", the Federal Breeding and Genetic Center for Fish Culture, and Vygsky and Kemsky fish hatcheries; and residents of Barabash-Levada, Len-lu, and Chupa settlements. We also thank S.S. Alekseev for identifying sharp-snouted and blunt-snouted lenoks. This work was supported by the Russian Science Foundation, project no. 16-14-10001.
Предметные рубрики: MOLECULAR DATING ANALYSIS
GROWTH-HORMONE INTRONS
SALMONIFORMES
Ключевые слова (''Своб.индексиров.''): evolution--network--molecular clock--amino acid sequence--reproductive--isolation--immobilization--fishes
Аннотация: We have analyzed the partial sequences of the mitochondrial COI gene along with the amino acid sequences of cytochrome oxidase subunit I, encoded by this gene region, in representatives of 11 genera of salmonoid fish. For amino acid sequences, two alternative networks are constructed with outgroups represented by either Esocoidei or Osmeroidei as the supposed ancestral groups. This way, Osmeroidei appear to be closer to the salmonoid fish than Esocoidei, and their presence in the network as an outgroup explains the available data on the morphology and karyology of salmonoids much better. A number of the results of this study are fundamentally new. In particular, the slowing down of the molecular evolution of the grayling (Thymallidae) is shown. We conclude that the charr (Salvelinus) is one of the modern genera of salmonoids closest to their ancestor. The hypothesis of the phylogenetic proximity of the genera Brachymystax, Hucho, and Salmo has been confirmed. We also discuss the possibility that it is namely the changes in the amino acid sequence of cytochrome oxidase subunit I that lead to postzygotic reproductive isolation between taxa.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Makhrov A. A., Lajus D. L.
Заглавие : Postglacial Colonization of the North European Seas by Pacific Fishes and Lamprey
Колич.характеристики :12 с
Коллективы : Russian Science Foundation [16-14-10001]
Место публикации : Contemp. Probl. Ecol.: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2018. - Vol. 11, Is. 3. - С. 247-258. - ISSN 1995-4255, DOI 10.1134/S1995425518030071. - ISSN 1995-4263(eISSN)
Примечания : Cited References:134. - This work was supported by Russian Science Foundation, project no. 16-14-10001.
Предметные рубрики: MULTIPLE GLACIAL REFUGIA
GENETIC DIFFERENTIATION
SPECIES COMPLEX
1956
Ключевые слова (''Своб.индексиров.''): arctic ocean--zoogeography--phylogeography--fish--lamprey--evolution--immobilization
Аннотация: A critical analysis of literature data on the distribution, morphology, and phylogeography of the Arctic lamprey (Lethenteron camtschaticum) and five species of marine and anadromous fish such as navaga (Eleginus navaga), pollock (Theragra chalcogramma), rainbow smelt (Osmerus mordax dentex), Pacific herring (Clupea pallasii), and pond smelt (Hypomesus olidus) has been performed. The results show that all these species have colonized Northern European seas, distributing along the Arctic coastline of Eurasia after the glacier retreat. The reasons that the dispersal of these species in the Atlantic Ocean may be impeded (preference for a cold environment, competition, and decrease of the evolutionary potential) are discussed.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Makhrov A. A.
Заглавие : A narrowing of the phenotypic diversity range after large rearrangements of the karyotype in salmonidae: The relationship between saltational genome rearrangements and gradual adaptive evolution
Место публикации : Genes: MDPI AG, 2017. - Vol. 8, Is. 11. - ISSN 20734425 (ISSN) , DOI 10.3390/genes8110297
Ключевые слова (''Своб.индексиров.''): ecology--evolution--genome--karyotype--morphology--ecology--gene rearrangement--genome--karyotype--morphology--nonhuman--salmonid
Аннотация: The problem of how a gradual development of ecological and morphological adaptations combines with large genome rearrangements, which have been found to occur in the phylogeny of many groups of organisms, is a matter of discussion in the literature. The objective of this work was to study the problem with the example of salmonids, whose evolution included at least six events of multiple chromosome fusions. Large karyotype rearrangements are associated with a decrease in ecological and morphological diversity in salmonids. In the above example, genome rearrangements seem to distort the function of the genetic systems that are responsible for the occurrence of certain ecological forms in salmonids. © 2017 by the authors; Licensee MDPI, Basel, Switzerland.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Feniova I., Dawidowicz P., Ejsmont-Karabin J., Gladyshev M., Kalinowska K., Karpowicz M., Kostrzewska-Szlakowska I., Majsak N., Petrosyan V., Razlutskij V., Rzepecki M., Sushchik N., Dzialowski A. R.
Заглавие : Effects of zebra mussels on cladoceran communities under eutrophic conditions
Место публикации : Hydrobiologia: Springer International Publishing, 2018. - С. 1-18. - ISSN 00188158 (ISSN) , DOI 10.1007/s10750-018-3699-4
Ключевые слова (''Своб.индексиров.''): chlorophyll--food quality--life-table experiments--phosphorus limitation--zooplankton
Аннотация: The purpose of this study was to determine how zebra mussels affected cladoceran community structure under eutrophic conditions. We conducted a mesocosm study where we manipulated the presence of zebra mussels and the presence of large-bodied Daphnia (Daphnia magna and Daphnia pulicaria). We also conducted a complimentary life-table experiment to determine how water from the zebra mussel treatment affected the life history characteristics of the cladoceran species. We anticipated that small- and large-bodied cladoceran species would respond differently to changes in algal quality and quantity under the effects of zebra mussels. Large-bodied Daphnia successfully established in the zebra mussel treatment but failed to grow in the control. We did not observe positive relationships between food concentrations and cladoceran abundances. However, the phosphorus content in the seston indicated that food quality was below the threshold level for large-bodied cladocerans at the beginning of the experiment. We believe that zebra mussels quickly enhanced the phosphorus content in the seston due to the excretion of inorganic phosphorus, thus facilitating the development of large-bodied Daphnia. In conclusion, our results suggest that zebra mussels can alter the phosphorus content of seston in lakes and this can affect the dynamics of crustacean zooplankton. © 2018 Springer International Publishing AG, part of Springer Nature
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gozlan R. E., Karimov B. K., Zadereev E., Kuznetsova D., Sandra Brucet S S.
Заглавие : Status, trends, and future dynamics of freshwater ecosystems in Europe and Central Asia
Место публикации : Inland Waters: Taylor and Francis Ltd., 2019. - Article in press. - ISSN 20442041 (ISSN) , DOI 10.1080/20442041.2018.1510271
Ключевые слова (''Своб.индексиров.''): aquatic--biodiversity--conservation--habitat
Аннотация: This review is part of the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) report on Europe and Central Asia (ECA) and provides a critical assessment of issues facing decision-makers, including freshwater biodiversity and ecosystem trends as well as drivers of change. Freshwater systems are well established as the most threatened ecosystem type in the ECA region, with the quantity and quality of habitats and abundance of many species rapidly declining. Only about half (53%) of the EU's rivers and lakes achieved good ecological status in 2015 (as defined by the Water Framework Directive in terms of the quality of the biological community), and many lakes, ponds, and streams are disappearing as a consequence of agricultural intensification and inefficient irrigation and urbanisation, combined with climate change. The situation regarding freshwater biodiversity remains highly critical in ECA as many species remain threatened with extinction, including 50% of known species for some groups (e.g., molluscs, amphibians). Drivers of ECA freshwater taxa include the destruction or modification of their habitat, including water abstraction, which affects ?89% of all amphibian threatened species and ?26% of threatened freshwater invertebrate species. Of particular concern is the lack of data for freshwater invertebrates. Current status is available for only a minority of species, and the impact of alien invasive species is often unknown, especially in Central Asia. Based on current freshwater biodiversity trends, it is highly unlikely that ECA will achieve either the respective Aichi biodiversity targets by 2020 (i.e., targets 2 to 4, 6 to 12, and 14) or Target 1 of the Biodiversity Strategy. © 2019, © 2019 International Society of Limnology (SIL).
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kotlobay A. A., Sarkisyan K. S., Mokrushina Y. A., Marcet-Houben M., Serebrovskaya E. O., Markina N. M., Somermeyer L. G., Gorokhovatsky A. Y., Vvedensky A., Purtov K. V., Petushkov V. N., Rodionova N. S., Chepurnyh T. V., Fakhranurova L. I., Guglya E. B., Ziganshin R., Tsarkova A. S., Kaskova Z. M., Shender V., Abakumov M., Abakumova T. O., Povolotskaya I. S., Eroshkin F. M., Zaraisky A. G., Mishin A. S., Dolgov S. V., Mitiouchkina T. Y., Kopantzev E. P., Waldenmaier H. E., Oliveira A. G., Oba Y., Barsova E., Bogdanova E. A., Gabaldon T., Stevani C. V., Lukyanov S., Smirnov I. V., Gitelson J. I., Kondrashov F. A., Yampolsky I. V.
Заглавие : Genetically encodable bioluminescent system from fungi
Место публикации : Proc. Natl. Acad. Sci. U. S. A.: National Academy of Sciences, 2018. - Vol. 115, Is. 50. - С. 12728-12732. - ISSN 00278424 (ISSN) , DOI 10.1073/pnas.1803615115
Ключевые слова (''Своб.индексиров.''): bioluminescence--fungal luciferase--fungal luciferin biosynthesis
Аннотация: Bioluminescence is found across the entire tree of life, conferring a spectacular set of visually oriented functions from attracting mates to scaring off predators. Half a dozen different luciferins, molecules that emit light when enzymatically oxidized, are known. However, just one biochemical pathway for luciferin biosynthesis has been described in full, which is found only in bacteria. Here, we report identification of the fungal luciferase and three other key enzymes that together form the biosynthetic cycle of the fungal luciferin from caffeic acid, a simple and widespread metabolite. Introduction of the identified genes into the genome of the yeast Pichia pastoris along with caffeic acid biosynthesis genes resulted in a strain that is autoluminescent in standard media. We analyzed evolution of the enzymes of the luciferin biosynthesis cycle and found that fungal bioluminescence emerged through a series of events that included two independent gene duplications. The retention of the duplicated enzymes of the luciferin pathway in nonluminescent fungi shows that the gene duplication was followed by functional sequence divergence of enzymes of at least one gene in the biosynthetic pathway and suggests that the evolution of fungal bioluminescence proceeded through several closely related stepping stone nonluminescent biochemical reactions with adaptive roles. The availability of a complete eukaryotic luciferin biosynthesis pathway provides several applications in biomedicine and bioengineering. © 2018 National Academy of Sciences. All Rights Reserved.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Borovikova, Elena A., Artamonova, Valentina S.
Заглавие : Morphological specificities of vendace (Salmoniformes: Salmonidae: Coregoninae: Coregonus albula) population in Lake Pleshcheyevo (the Volga River basin): relationships of two phylogenetic lineages in a new zone of secondary contact
Колич.характеристики :12 с
Коллективы : Russian Science Foundation [16-14-10001]
Место публикации : Org. Divers. Evol.: SPRINGER HEIDELBERG, 2018. - Vol. 18, Is. 3. - С. 355-366. - ISSN 1439-6092, DOI 10.1007/s13127-018-0375-5. - ISSN 1618-1077(eISSN)
Примечания : Cited References:46. - The preparation of this manuscript was supported by the Russian Science Foundation, grant no. 16-14-10001.
Предметные рубрики: ECOLOGICAL DIVERGENCE
SPECIES PAIR
ORIGIN
EVOLUTIONARY
WHITEFISH
Ключевые слова (''Своб.индексиров.''): vendace--morphological characters--allopatric origin--phylogenetic--lineages--lake pleshcheyevo
Аннотация: This is the report about the secondary contact zone of coregonids in the Upper Volga basin. Two mitochondrial DNA (mtDNA) phylogenetic lineages of vendace Coregonus albula (Linnaeus, 1758) living in Lake Pleshcheyevo have been analyzed and compared in terms of morphological characters. These lineages have developed under the conditions of allopatry and are characterized by strong differences of the mitochondrial DNA sequences. The lineages have coexisted in the same lake since the last glaciation maximum (about 10,000years ago). The morphological analysis has shown that representatives of both lineages correspond to C. albula, while slight, morphological variations between lineages indicate different food preferences and locomotor abilities. Scenarios where multiple distinct coexisting phylogenetic lineages are characterized by low levels of morpho-ecological divergence are uncommon. These situations are important for understanding biodiversity dynamics and the mechanisms that drive coexistence, adaptive divergence, hybridization, and extinction when genetically divergent lineages meet in secondary contact.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Pechurkin N.S., Shuvaev A.N.
Заглавие : The general evolution of energy–matter interactions on earth: From a gas whirlwind to a technogenic civilization
Место публикации : Biophysics. - 2015. - Vol. 60, Is. 2. - С. 331-334. - ISSN 00063509 (ISSN) , DOI 10.1134/S0006350915020153
Ключевые слова (''Своб.индексиров.''): biosphere--energy transfer--evolution--animalia--mammalia--protozoa
Аннотация: An idea of the general evolution through the long-term response of the Earth to the external flow of radiant energy from the Sun is proposed. Due to the finiteness of matter on Earth, as well as on any other planet, the continuous pumping flow of radiant energy has been shown to lead to cyclization of transformations and mass transfer along the emerging gradients. The evolution of the energy–matter interaction follows the pathway of capturing and transferring more energy by a smaller quantity of matter, i.e., the pathway of the increase in the amount of energy used by each unit mass. According to this parameter, the least effective mass transfer is a simple transfer as vortices of gases along the gradients of temperature and pressure, which took place on the primary surface of the planet. Long-term natural selection towards water accumulation on the planet has played a special role in the development of the interaction between energy and matter. Phase transitions (ice, water, and vapor) and mechanical transfers are the most common energy–matter processes. Chemical transformation of substances became possible based on water cycles, cyclic transfers, and transformations and developed with time into biological transformation. This type of energy–matter interaction is the most efficient. In particular, the energy of our star is captured during photosynthesis and utilized in the most active region of its radiation spectrum. During the biological evolution of heterotrophs, a increase in the coefficient that characterizes the energy exchange intensity from protozoa to mammals by several hundred times is most illustrative. The development and current dominance of humans as the species that is most active in the capturing of energy and meaningful organization of its new flows, in particular, based on the organic debris of former biospheres, is amazing but quite natural from the energy standpoint. During the technological evolution of humankind, the energy-exchange intensity for homoiotherms (warm-blooded animals) has increased by 20 times if it is recalculated for the technological energy that is used by the average inhabitant of the Earth. Thus, the victory of our species in planetary evolution fits well into the mainstream of the general evolution through energy–matter interactions: a multiple increase in star energy has been used to transform the matter on the surface of the irradiated planet. © 2015, Pleiades Publishing, Inc.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Bartsev S.I., Mezhevikin V.V.
Заглавие : Pre-biotic stage of life origin under non-photo synthetic conditions
Колич.характеристики :5 с
Место публикации : SPACE LIFE SCIENCES: CLOSED ECOLOGICAL SYSTEMS: EARTH AND SPACE APPLICATIONS. Ser. ADVANCES IN SPACE RESEARCH: PERGAMON-ELSEVIER SCIENCE LTD, 2005. - Vol. 35: Workshop on Closed Ecological Systems (JUL, 2004, Paris, FRANCE), Is. 9. - P1643-1647. - ISBN 0273-1177, DOI 10.1016/j.asr.2005.04.072
Примечания : Cited References: 14
Ключевые слова (''Своб.индексиров.''): life origin--pre-biotic autocatalytic system--phase-separated autocatalytic particles--multivariate oligomeric autocatalyst
Аннотация: Spontaneous assembling of a simplest bacterial cell even if all necessary molecules are present in a solution seems to be extremely rare event and from the scientific standpoint has to be considered as impossible. Therefore, a predecessor of a living cell has to be very simple for providing its self-assembling and at the same time it should be able of progressive increase in complexity. Now phase-separated particles, first of all micelles, are put forward as possible predecessors of living cell. According to the offered working concept only phase-separated particles possessing autocatalytic properties can be considered as predecessors of living cells. The first stage of evolution of these phase-separated autocatalytic systems is the appearance of pre-biotic metabolism providing synthesis of amphiphiles for formation of capsules of these systems. This synthesis is maintained by the energy of a base reaction being a component of a planet-chemical cycle. Catalytic system providing functioning of pre-biotic metabolism is based on multivariate oligomeric autocatalyst, which reproduces itself from monomers, penetrating the particles from the outside. Since the autocatalyst realizes random polymerization then a collection of other oligomers possessing different catalytic functions is produced. In the paper the functioning of multivariate oligomeric autocatalyst in flow reactor is analyzed. (c) 2005 Published by Elsevier Ltd on behalf of COSPAR.
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Semenov D.A., Khlebopros R.G.
Заглавие : The effect of biota on global climate
Колич.характеристики :4 с
Место публикации : Biofizika: MEZHDUNARODNAYA KNIGA, 2005. - Vol. 50, Is. 4. - P748-751. - ISSN 0006-3029
Примечания : Cited References: 6
Ключевые слова (''Своб.индексиров.''): biosphere--climate--modeling--co2 balance--energy balance
Аннотация: A model consisting of two blocks (equations) was proposed for the analytical, study of the biosphere-climate system over great periods of time. The first equation describes the balance of carbon dioxide in the Atmosphere and re presents the biological block of the model. The second equation is the equation of the energy balance or the physical block of the system. The model is based on the most general conceptions of living matter and the evolution process. A possible interpretation of some events and phenomena in the earth history in terms of the model is given.
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11.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gladyshev M. I., Artamonova V. S., Makhrov A. A., Sushchik N. N., Kalachova G. S., Dgebuadze Y. Y.
Заглавие : Triploidy does not decrease contents of eicosapentaenoic and docosahexaenoic acids in filets of pink salmon Oncorhynchus gorbuscha
Место публикации : Food Chem. - 2017. - Vol. 216. - С. 66-69. - ISSN 03088146 (ISSN) , DOI 10.1016/j.foodchem.2016.08.021
Ключевые слова (''Своб.индексиров.''): essential fatty acids--filets--triploid fish--aquaculture--fish--polyunsaturated fatty acids--unsaturated fatty acids--docosahexaenoic acid--eicosapentaenoic acid--essential fatty acids--fa compositions--filets--muscle tissues--pink salmon--white sea--fatty acids
Аннотация: Triploid fish has become an important item of commercial aquaculture, but data on its fatty acid (FA) composition are still controversial, especially regarding essential polyunsaturated fatty acids, eicosapentaenoic acid (20:5n-3, EPA) and docosahexaenoic acid (22:6n-3, DHA). We studied FA composition and content of diploid and triploid pink salmon Oncorhynchus gorbuscha, reared in aquaculture in a bay of the White Sea (Russia). FA composition, measured as percentages of total FA of triploids and immature diploid females significantly differed from that of mature diploid fish. Specifically, mature diploids had higher percentage of EPA and DHA in their muscle tissue (filets) compared to that of triploids and immature diploid females. Nevertheless, the contents of EPA and DHA per mass of the filets in diploid and triploid specimens were similar. Thus, no special efforts are needed to improve EPA and DHA contents in filets of triploids. © 2016 Elsevier Ltd
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12.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gladyshev M. I., Sushchik N. N., Glushchenko L. A., Zadelenov V. A., Rudchenko A. E., Dgebuadze Y. Y.
Заглавие : Fatty acid composition of fish species with different feeding habits from an Arctic Lake
Место публикации : Doklad. Biochem. Biophys.: Maik Nauka Publishing / Springer SBM, 2017. - Vol. 474, Is. 1. - С. 220-223. - ISSN 16076729 (ISSN) , DOI 10.1134/S1607672917030164
Аннотация: We compared the composition and content of fatty acids (FAs) in fish with different feeding habits (sardine (least) cisco Coregonus sardinella, goggle-eyed charr (pucheglazka) form of Salvelinus alpinus complex, humpback whitefish Coregonus pidschian, broad whitefish Coregonus nasus, boganid charr Salvelinus boganidae, and northern pike Esox lucius from an Arctic Lake. Feeding habits of the studied fish (planktivore, benthivore, or piscivore) significantly affected the composition of biomarker fatty acids and the ratio of stable isotopes of carbon and nitrogen in their biomass. The hypothesis on a higher content of eicosapentaenoic and docosahexaenoic acids in the fish of higher trophic level (piscivores) when compared within the same taxonomic group (order Salmoniformes) was confirmed. © 2017, Pleiades Publishing, Ltd.
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13.

Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Gitelson J. I., Degermendzhy A. G.
Заглавие : Evolution and present status of experimental manned ecological systems for long-term human life support - Bios, developed by the institute of biophysics of Russian academy of sciences in Krasnoyarsk (Siberia)
Место публикации : Proceedings of the International Astronautical Congress, IAC: International Astronautical Federation, IAF, 2015. - Vol. 1: 66th International Astronautical Congress 2015: Space - The Gateway for Mankind's Future, IAC 2015 (12 October 2015 through 16 October 2015, ) Conference code: 122921. - С. 243-250
Ключевые слова (''Своб.индексиров.''): arid regions--biochemistry--biospherics--plant shutdowns--proteins--reconfigurable hardware--closed ecological systems--corrective actions--essential proteins--extreme conditions--human intelligence--long-term experiments--physiological effects--russian academy of sciences--ecology
Аннотация: Closed ecological systems are of two-fold interest - as models of the Earth's biosphere explorable in experiments and as a facility for long-term autonomous human life support beyond the Earth. Theoretical analysis and experimental implementation of highly closed manned systems has been the subject of studies at the Institute of Biophysics (Russian Academy of Sciences, Siberian Branch) for many years. BIOS systems of increasing complexity with complete regeneration of atmosphere, water and partially food have been realized. In BIOS-3 experiments the system inhabited by 2-3 researchers for 4-6 months maintained its metabolic equilibrium without any negative physiological effect on the crew, which proves its sustainable condition. Specific for BIOS-3 is internal control by the people inhabiting the system. So, BIOS-3 is the first experimental implementation of V.l. Vernadsky's idea about the noosphere - habitable Biosphere controlled by human intelligence. Contrary to predictions of many environmentalists the closedness of the ecosystem is a factor that does not reduce, but increases its sustainability and makes its use for reliable life support outside the Earth realistic. The system is sustainable owing to permanent feedback between the monitoring of few key parameters of the system and automatic corrective actions on them. Main object of control is photo-biosynthesis regenerating parameters of human habitat disturbed by his vital activities. This principle has been realized in BIOS system and proved its reliability in long-term experiments. A new challenge is specified-optimal increase of trophic closedness of the system by reproduction within it essential proteins (peptides and amino acids), lipids, vitamins and other essential compounds. Alternative lines of attack on this problem by state-of-the-art biotechnological methods, GMO including, are under analysis. Reduced BIOS version - without complete closure - can be a breakthrough instrument to improve the quality of life of people living under extreme conditions on the Earth - in polar latitudes (Arctic, Antarctic), in deserts, in high mountains.
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14.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Dgebuadze Y. Y., Gladyshev M. I.
Заглавие : Biotic fluxes of matter and energy between aquatic and terrestrial ecosystems
Место публикации : Contemp. Probl. Ecol. - 2016. - Vol. 9, Is. 4. - С. 391-395. - ISSN 19954255 (ISSN) , DOI 10.1134/S1995425516040041
Ключевые слова (''Своб.индексиров.''): amphibionts--biodiversity--biological invasions--ecotone--fluxes of matter and energy--water–land interface--animalia
Аннотация: This paper is an introduction to a special issue of the journal. A brief historical delineation of the question of studying interfaces between adjacent ecosystems (ecotones) is presented. High biodiversity of ecotones and their vulnerability to natural and anthropogenic impacts, including invasions of alien species, are noted. It is supposed that there is no contradiction between the ecotone and river continuum concepts. The important ecological role of amphibiotic animals and plants in interactions and functioning of the adjacent ecosystems is emphasized. The issue of studying the quantitative parameters of fluxes of matter and energy between ecosystems in conjunction with their qualitative parameters (chemical elemental and biochemical compositions) is considered in the present paper. © 2016, Pleiades Publishing, Ltd.
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15.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Karpowicz M., Feniova I., Gladyshev M. I., Ejsmont-Karabin J., Gorniak A., Sushchik N. N., Anishchenko O. V., Dzialowski A. R.
Заглавие : Transfer efficiency of carbon, nutrients, and polyunsaturated fatty acids in planktonic food webs under different environmental conditions
Место публикации : Ecology and Evolution: John Wiley and Sons Ltd, 2021. - Article in press. - ISSN 20457758 (ISSN), DOI 10.1002/ece3.7651
Аннотация: The trophic transfer efficiency (TTE) is an important indicator of ecosystem functioning. However, TTE data from freshwater food webs are ambiguous due to differences in time scales and methods. We investigated the transfer of essential substances (carbon, nutrients, and polyunsaturated fatty acids) through plankton communities in 30 Polish lakes with different trophic status in the middle of summer. The results of our study revealed that different essential substances were transferred from phytoplankton to zooplankton with varying efficiencies. The average TTE of C, N, P, and the sum of ?-3 PUFA were 6.55%, 9.82%, 15.82%, and 20.90%, respectively. Our results also show a large mismatch between the elemental and biochemical compositions of zooplankton and their food during the peak of the summer stagnation, which may further promote the accumulation of essential substances. There were also large differences in TTEs between trophic conditions, with the highest efficiencies in oligotrophic lakes and the lowest in dystrophic and eutrophic lakes. Therefore, our study indicates that disturbances like eutrophication and dystrophication similarly decrease the TTE of essential substances between phytoplankton and zooplankton in freshwater food webs. © 2021 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd.
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16.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Feniova I. Y., Sakharova E. G., Buseva Z. F., Gladyshev M. I., Sushchik N. N., Gorelysheva Z. I., Karpowicz M., Semenchenko V. P.
Заглавие : Efficiency of Transfer of Essential Substances from Phytoplankton to Planktonic Crustaceans in Mesotrophic Conditions
Место публикации : Inland Water Biol.: Pleiades journals, 2021. - Vol. 14, Is. 1. - С. 49-59. - ISSN 19950829 (ISSN), DOI 10.1134/S1995082920040033
Аннотация: Abstract: We assessed the efficiency of the transfer of essential substances (carbon, phosphorus, nitrogen, and fatty acids (FA), including polyunsaturated fatty acids (PUFAs)) from phytoplankton to planktonic crustaceans in experimental mesocosms in the presence and absence of fish. The experiments were conducted under mesotrophic conditions in 300 L mesocosms. We have found that transfer efficiencies from producers to consumers are different for different substances. In particular, FA, including PUFAs, are transferred less efficiently than carbon. In contrast, the efficiency of nutrient transfer, especially phosphorus, is higher than that of carbon. This evidences that zooplankton can accumulate nutrients, increasing their quality as a resource for higher trophic levels. Fish significantly reduced the efficiency of carbon transfer from phytoplankton to zooplankton per unit of water volume, but did not affect the transfer of substances per unit of biomass. Thus, the quality of zooplankton as a food resource for higher trophic levels did not decrease in the presence of fish, despite the decline in the efficiency of the transfer of the essential substances per unit of water volume under their influence. Since the efficiency of essential substances transfered from phytoplankton to zooplankton determines the functioning of the entire trophic web, we should seek ways to increase it. © 2021, Pleiades Publishing, Ltd.
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17.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Artamonova V. S., Afanasyev S. A., Bardukov N. V., Golod V. M., Kokodiy S. V., Koulish A. V., Pashkov A. N., Pipoyan S. K., Reshetnikov S. I., Makhrov A. A.
Заглавие : The Center of Origin and Colonization Routes of Noble Salmons of the Genus Salmo (Salmonidae, Actinopterigii)
Место публикации : Doklad. Biochem. Biophys.: Pleiades Publishing, 2020. - Vol. 493, Is. 1. - С. 171-177. - ISSN 16076729 (ISSN), DOI 10.1134/S160767292004002X
Аннотация: Abstract: Genetic diversity and colonization routes of noble salmons were studied using a partial nucleotide sequence of the mitochondrial COI gene. The brown trout S. trutta, which is the most ancient species of the genus, was concluded to originate from the modern southeastern Pontic-Caspian area, which is currently inhabited by members of the subspecies S. trutta oxianus. Migrating westward while the Paratethys was in existence (5–34 million years ago), species of the genus colonized ancient water bodies in the modern Mediterranean basin and formed many isolated populations that survived desiccation of the Mediterranean Sea (5–6 million years ago). The Strait of Gibraltar mediated brown trout migrations to Northern Europe; the subspecies S. trutta trutta belongs to a relatively young phylogenetic lineage of the species. A separate brown trout lineage, currently classified as the subspecies S. trutta labrax, formed most likely in the area of the modern Danube basin, which was a relatively separate part of the Paratethys and was sometimes isolated as the Pannonian Lake. A highly divergent phylogenetic lineage of Atlantic salmon (S. salar) haplotypes originates from a haplotype of the brown trout that inhabited the area of the modern Strait of Gibraltar. © 2020, Pleiades Publishing, Ltd.
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18.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Karpowicz, Maciej, Feniova, Irina, Gladyshev, Michail I., Ejsmont-Karabin, Jolanta, Gorniak, Andrzej, Sushchik, Nadezhda N., Anishchenko, Olesya V., Dzialowski, Andrew R.
Заглавие : Transfer efficiency of carbon, nutrients, and polyunsaturated fatty acids in planktonic food webs under different environmental conditions
Колич.характеристики :14 с
Коллективы : Polish National Science Centre [2016/21/B/NZ8/00434]; Federal Tasks for Institute of Biophysics SB RAS [51.1.1]; Federal Tasks for Siberian Federal University [FSRG-2020-0019]
Место публикации : Ecol. Evol.: WILEY, 2021. - Article in press. - ISSN 2045-7758, DOI 10.1002/ece3.7651
Примечания : Cited References:62. - This research was supported by the Polish National Science Centre (2016/21/B/NZ8/00434). The research was also supported by Federal Tasks for Institute of Biophysics SB RAS No. 51.1.1 and Federal Tasks for Siberian Federal University No. FSRG-2020-0019. The authors are thankful to Joanna Kozowska for her help in the collection of samples.
Предметные рубрики: PHOSPHORUS STOICHIOMETRY
LIGHT-INTENSITY
ZOOPLANKTON
TEMPERATURE
Аннотация: The trophic transfer efficiency (TTE) is an important indicator of ecosystem functioning. However, TTE data from freshwater food webs are ambiguous due to differences in time scales and methods. We investigated the transfer of essential substances (carbon, nutrients, and polyunsaturated fatty acids) through plankton communities in 30 Polish lakes with different trophic status in the middle of summer. The results of our study revealed that different essential substances were transferred from phytoplankton to zooplankton with varying efficiencies. The average TTE of C, N, P, and the sum of omega-3 PUFA were 6.55%, 9.82%, 15.82%, and 20.90%, respectively. Our results also show a large mismatch between the elemental and biochemical compositions of zooplankton and their food during the peak of the summer stagnation, which may further promote the accumulation of essential substances. There were also large differences in TTEs between trophic conditions, with the highest efficiencies in oligotrophic lakes and the lowest in dystrophic and eutrophic lakes. Therefore, our study indicates that disturbances like eutrophication and dystrophication similarly decrease the TTE of essential substances between phytoplankton and zooplankton in freshwater food webs.
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19.

Вид документа : Статья из сборника (однотомник)
Шифр издания : Е071/Б 63
Автор(ы) : Печуркин, Николай Савельевич, Шуваев А. Н., Сомова, Лидия Александровна, Толомеев А. П. Александр Павлович, Дегерменджи А. Г. Андрей Георгиевич, Бархатов Ю. В., Хромечек, Елена Борисовна, Дроботов А. В.
Заглавие : Непрерывный рост интенсивности энерго-вещественных взаимодействий в эволюции геобиосферы Земли
Параллельн. заглавия :Transparent growth of the energy/matter interactions on Earth in the evolution of geobiosphere
Коллективы : Российская академия наук, Институт биофизики
Место публикации : Биофизика для экологии и медицины: к 90-летию академика РАН И. И. Гительзона/ И. И. Гительзон, Т. Г. Волова, А. Г. Дегерменджи [и др.] ; ред., авт. предисл. Т. Г. Волова. - Новосибирск: Издательство Сибирского отделения Российской академии наук, 2019. - С. 248-254. - ISBN 978-5-7692-1650-3 (Шифр Е071/Б 63-478048446)
УДК : 577 + 574 + 61
ББК : Е071я43 + Р252.0я43
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20.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zhila N. O., Sapozhnikova K. Yu., Kiselev E. G., Vasiliev A. D., Nemtsev I. V., Shishatskaya E. I., Volova T. G.
Заглавие : Properties of degradable polyhydroxyalkanoates (Phas) synthesized by a new strain, cupriavidus necator ibp/sfu-1, from various carbon sources
Место публикации : Polym.: MDPI, 2021. - Vol. 13, Is. 18. - Ст.3142. - ISSN 20734360 (ISSN), DOI 10.3390/polym13183142
Аннотация: The bacterial strain isolated from soil was identified as Cupriavidus necator IBP/SFU-1 and investigated as a PHA producer. The strain was found to be able to grow and synthesize PHAs under autotrophic conditions and showed a broad organotrophic potential towards different carbon sources: sugars, glycerol, fatty acids, and plant oils. The highest cell concentrations (7–8 g/L) and PHA contents were produced from oleic acid (78%), fructose, glucose, and palm oil (over 80%). The type of the carbon source influenced the PHA chemical composition and properties: when grown on oleic acid, the strain synthesized the P(3HB-co-3HV) copolymer; on plant oils, the P(3HB-co-3HV-co-3HHx) terpolymer, and on the other substrates, the P(3HB) homopolymer. The type of the carbon source influenced molecular-weight properties of PHAs: P(3HB) synthesized under autotrophic growth conditions, from CO2, had the highest number-average (290 ± 15 kDa) and weight-average (850 ± 25 kDa) molecular weights and the lowest polydispersity (2.9 ± 0.2); polymers synthesized from organic carbon sources showed increased polydispersity and reduced molecular weight. The carbon source was not found to affect the degree of crystallinity and thermal properties of the PHAs. The type of the carbon source determined not only PHA composition and molecular weight but also surface microstructure and porosity of the polymer films. The new strain can be recommended as a promising P(3HB) producer from palm oil, oleic acid, and sugars (fructose and glucose) and as a producer of P(3HB-co-3HV) from oleic acid and P(3HB-co-3HV-co-3HHx) from palm oil. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
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