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1.


   
    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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2.


   
    STOICHIOMETRIC COMPOSITION OF SESTON IN LITTORAL AND PELAGIAL ZONES OF SHALLOW LAKE OBSTERNO (BELARUS) / Z. F. Buseva [и др.] // Dokl. Nat. Akad. Nauk Belarusi. - 2018. - Vol. 62, Is. 3. - С. 304-310, DOI 10.29235/1561-8323-2018-62-3-304-310. - Cited References:15. - This work was partially supported by the BRFFR (grant No. (sic)17-037). We thank for the collaboration with Narach Biological Station of Belarusian State University and thank it's Director Dr. T. V. Zhukova, scientific and technological staff -E. I. Lapitskaja and E. A. Zhuravliova for their fruitfull help. . - ISSN 1561-8323. - ISSN 2524-2431
РУБ Multidisciplinary Sciences
Рубрики:
NUTRIENT LIMITATION
   PHOSPHORUS

   NITROGEN

   ZOOPLANKTON

   CARBON

   MARINE

Кл.слова (ненормированные):
seston -- carbon -- nitrogen -- phosphorus -- stoichiometry -- littoral -- pelagial -- macrophyte beds
Аннотация: We estimated the seston elemental composition (C, N, P) and its ratio in pelagic and littoral zones of mesotrophic shallow Lake Obsterno during two contrasting seasons, as well as the influence of macrophyte beds on the seston stoichiometry. In the both pelagial and littoral zones in summer the C : N ratio was small, 4.62 and 7.05 respectively. But it increased slightly during autumn to 5.66 in pelagic samples against 8.33 in littoral ones. The large N : P ratio and the small phosphorus content specially in the macrophyte covered littoral zone equal to 57.7 in July against 22.47 in September suggest a high level of phosphorus limitation in the littoral locations as a possible mediated reason suppressing zooplankton abundance in summer. Our results in the both pelagial and littoral habitat showed a highly P limited situation in which the N : P ratio was larger in littoral with macrophyte than in pelagial zones. The obtained data of littoral seston stoichiometry were recorded for the first time and exceeded the classical Redfield ratio. The elemental imbalance between macrophyte covered littoral and pelagial suggest that nutrients, especially P, are more limiting in macrophyte beds in summer due to the resource competition between phytoplankton and macrophytes for nutrients, a poor food quality, low zooplankton abundance, as well as its poor taxon-specific elemental ratio in summer.

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Держатели документа:
Natl Acad Sci Belarus Bioresources, Sci & Pract Ctr, 27 Akad Skaya Str, Minsk 220072, BELARUS.
Naroch Biol Stn, Naroch, BELARUS.
Russian Acad Sci, Siberian Branch, Inst Biophys, 50-50 Akademgorodok Str, Krasnoyarsk 660036, Russia.
Naroch Biol Stn, Miadel Dist 220095, Minsk Region, BELARUS.

Доп.точки доступа:
Buseva, Zhanna F.; Farahani, Shabnam Bahman Gazerani; Veras, Yulia K.; Kolmakova, Anzhelika A.; Sushchik, Nadezhda N.; BRFFR [17-037]

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3.


   
    Extracellular peroxidase activity and light emission of the mycelium of the basidiomycete neonothopanus nambi in the presence of ?-glucosidase / O. A. Mogilnaya, N. O. Ronzhin, V. S. Bondar // Biophysics. - 2018. - Vol. 63, Is. 1. - P93-99, DOI 10.1134/S0006350918010104 . - ISSN 0006-3509
Кл.слова (ненормированные):
Basidiomycetes -- Cell wall -- Luminescence -- Peroxidase -- ?-glucosidase
Аннотация: A comparative evaluation of the level of extracellular peroxidase activity and light-emission intensity of the mycelium of the luminescent basidiomycete Neonothopanus nambi in the presence of ?-glucosidase was performed. The enzyme activity damages the hyphae of the fungus leading to osmotic imbalance, partial degradation of the mycelium, and release of extracellular peroxidases into the incubation medium. The presence of ?-glucosidase reduces the time necessary to reach the maximum luminescence. Putative biochemical mechanisms that underlie the stimulation of reactive oxygen species formation (first and foremost, of hydrogen peroxide) in the N. nambi mycelium in the presence of ?-glucosidase are proposed. © O.A. Mogilnaya, N.O. Ronzhin, V.S. Bondar and Pleiades Publishing, Inc., 2018.

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Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Mogilnaya, O. A.; Ronzhin, N. O.; Bondar, V. S.

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4.


   
    The effect of supplementation of the soil-like substrate with wheat straw mineralized to different degrees on wheat productivity in closed ecosystems / V. V. Velichko, A. A. Tikhomirov, S. A. Ushakova [et al.] // Life Sci. Space Res. - 2020. - Vol. 26. - P132-139, DOI 10.1016/j.lssr.2020.06.001 . - ISSN 2214-5524
Кл.слова (ненормированные):
Biological-technical human life support system -- Physicochemical mineralization of straw -- Soil-like substrate -- Wheat (Triticum aestivum L) -- hydrogen peroxide -- alternating current -- aqueous solution -- Article -- controlled study -- electric current -- evapotranspiration -- grain yield -- growing season -- harvest index -- irrigation (agriculture) -- macronutrient -- microclimate -- mineralization -- nitrogen concentration -- nutrient availability -- nutrient solution -- oxidation -- physical chemistry -- plant development -- plant growth -- priority journal -- sediment -- shoot -- soil like substrate -- soil treatment -- spikelet -- supernatant -- Triticum aestivum
Аннотация: Successful incorporation of soil-like substrate (SLS) into biotechnical life support systems is often complicated by the necessity to maintain the balance between flows of mineral elements taken up from the substrate by growing plants and mineral elements added to the SLS as components of mineralized plant inedible biomass. An imbalance between these two flows can be caused by the addition of recalcitrant plant waste such as wheat straw. The purpose of this study was to determine whether the availability of essential nutrients to be taken up by the roots of the wheat plants grown on the SLS could be enhanced by supplementing the SLS with the products derived from wheat straw subjected to different levels of physicochemical mineralization in the aqueous solution of hydrogen peroxide. Different degrees of straw mineralization were achieved by using different ratios of the aqueous solution of hydrogen peroxide to straw. The study showed that supplementation of the SLS with insufficiently oxidized products of physicochemical mineralization of straw resulted in a decrease in the grain yields. The inhibitory effect of the straw subjected to physicochemical oxidation increased with a decrease in the degree to which the straw had been oxidized. Only supplementation with the straw mineralized to the highest possible degree did not inhibit plant growth and development, and the crop yield in that treatment was higher than in the other treatments. © 2020

Scopus
Держатели документа:
Institute of Biophysics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, 50/50 Akademgorodok, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Velichko, V. V.; Tikhomirov, A. A.; Ushakova, S. A.; Trifonov, S. V.; Gribovskaya, I. V.

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5.


   
    The effect of supplementation of the soil-like substrate with wheat straw mineralized to different degrees on wheat productivity in closed ecosystems / V. V. Velichko, A. A. Tikhomirov, S. A. Ushakova [et al.] // Life Sci. Space Res. - 2020. - Vol. 26. - P132-139, DOI 10.1016/j.lssr.2020.06.001. - Cited References:27 . - ISSN 2214-5524. - ISSN 2214-5532
РУБ Astronomy & Astrophysics + Biology + Multidisciplinary Sciences
Рубрики:
EXPERIMENTAL-MODEL
   ESTIMATED PORTION

   GROWTH

   EARTH

Кл.слова (ненормированные):
Soil-like substrate -- Physicochemical mineralization of straw -- Wheat -- (Triticum aestivum L) -- Biological-technical human life support system
Аннотация: Successful incorporation of soil-like substrate (SLS) into biotechnical life support systems is often complicated by the necessity to maintain the balance between flows of mineral elements taken up from the substrate by growing plants and mineral elements added to the SLS as components of mineralized plant inedible biomass. An imbalance between these two flows can be caused by the addition of recalcitrant plant waste such as wheat straw. The purpose of this study was to determine whether the availability of essential nutrients to be taken up by the roots of the wheat plants grown on the SLS could be enhanced by supplementing the SLS with the products derived from wheat straw subjected to different levels of physicochemical mineralization in the aqueous solution of hydrogen peroxide. Different degrees of straw mineralization were achieved by using different ratios of the aqueous solution of hydrogen peroxide to straw. The study showed that supplementation of the SLS with in-sufficiently oxidized products of physicochemical mineralization of straw resulted in a decrease in the grain yields. The inhibitory effect of the straw subjected to physicochemical oxidation increased with a decrease in the degree to which the straw had been oxidized. Only supplementation with the straw mineralized to the highest possible degree did not inhibit plant growth and development, and the crop yield in that treatment was higher than in the other treatments.

WOS
Держатели документа:
RAS, SB, Inst Biophys, Fed Res Ctr,Krasnoyarsk Sci Ctr, 50-50 Akad Gorodok, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Velichko, V. V.; Tikhomirov, A. A.; Ushakova, S. A.; Trifonov, S. V.; Gribovskaya, I. V.

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6.


   
    The effect of supplementation of the soil-like substrate with wheat straw mineralized to different degrees on wheat productivity in closed ecosystems / V. V. Velichko, A. A. Tikhomirov, S. A. Ushakova [et al.] // Life Sci. Space Res. - 2020. - Vol. 26. - P132-139, DOI 10.1016/j.lssr.2020.06.001. - Cited References:27 . - ISSN 2214-5524. - ISSN 2214-5532
РУБ Astronomy & Astrophysics + Biology + Multidisciplinary Sciences
Рубрики:
EXPERIMENTAL-MODEL
   ESTIMATED PORTION

   GROWTH

   EARTH

Кл.слова (ненормированные):
Soil-like substrate -- Physicochemical mineralization of straw -- Wheat -- (Triticum aestivum L) -- Biological-technical human life support system
Аннотация: Successful incorporation of soil-like substrate (SLS) into biotechnical life support systems is often complicated by the necessity to maintain the balance between flows of mineral elements taken up from the substrate by growing plants and mineral elements added to the SLS as components of mineralized plant inedible biomass. An imbalance between these two flows can be caused by the addition of recalcitrant plant waste such as wheat straw. The purpose of this study was to determine whether the availability of essential nutrients to be taken up by the roots of the wheat plants grown on the SLS could be enhanced by supplementing the SLS with the products derived from wheat straw subjected to different levels of physicochemical mineralization in the aqueous solution of hydrogen peroxide. Different degrees of straw mineralization were achieved by using different ratios of the aqueous solution of hydrogen peroxide to straw. The study showed that supplementation of the SLS with in-sufficiently oxidized products of physicochemical mineralization of straw resulted in a decrease in the grain yields. The inhibitory effect of the straw subjected to physicochemical oxidation increased with a decrease in the degree to which the straw had been oxidized. Only supplementation with the straw mineralized to the highest possible degree did not inhibit plant growth and development, and the crop yield in that treatment was higher than in the other treatments.

WOS
Держатели документа:
RAS, SB, Inst Biophys, Fed Res Ctr,Krasnoyarsk Sci Ctr, 50-50 Akad Gorodok, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Velichko, V. V.; Tikhomirov, A. A.; Ushakova, S. A.; Trifonov, S. V.; Gribovskaya, I. V.

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7.


   
    Bioregenerative life support space diet and nutrition requirements: still seeking accord / V. S. Kovalev, N. S. Manukovsky, A. A. Tikhomirov // Life Sci. Space Res. - 2020. - Vol. 27. - P99-104, DOI 10.1016/j.lssr.2020.07.004. - Cited References:24. - The work was carried out within the framework of the State Program on the topic No. 56.1.4, section VI of the Program of Fundamental Scientific Research of the Russian Academy of Sciences for 2013-2020. . - ISSN 2214-5524. - ISSN 2214-5532
РУБ Astronomy & Astrophysics + Biology + Multidisciplinary Sciences
Рубрики:
SYSTEMS
   FOOD

Кл.слова (ненормированные):
Modeling -- Diet -- Dish -- Ingredient -- Nutrient -- Imbalance
Аннотация: The capability of "dish" and "ingredient in dish" modeling to reduce the number of nutrition imbalances in bioregenerative life support diet was compared. Masses of dishes were assumed to be the independent variables in the 'dish' model, while in the 'ingredient in dish' model the independent variables were the total masses of the ingredients in a one-day menu and masses of ingredients in the dishes. The objective function in both models was minimization of discrepancy between the calculated nutrition intakes and the daily nutrition requirements of NASA for long duration space missions. Comparing of two models was carried out for the case of a one-day diet containing 12 dishes and 32 ingredients. It was established that the diet simulation by 'dish' model brings 6 nutrition imbalances. The use of the 'ingredient in dish' modeling has helped to reduce the number of nutrition imbalances to 3, namely, an excess of iron, vitamin A and saturated fat. Obstacles to the fulfillment of all nutrition requirements were the nomenclature and masses of ingredients in the dish recipes.

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Держатели документа:
Russian Acad Sci, Siberian Branch, Inst Biophys, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Kovalev, V. S.; Manukovsky, N. S.; Tikhomirov, A. A.; Program of Fundamental Scientific Research of the Russian Academy of Sciences [56.1.4]

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