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Chlorophyll fluorescence as an indicator of age-dependent changes in photosynthetic apparatus of wheat leaves [Text] / T. V. Nesterenko, V. N. Shikhov, A. A. Tikhomirov // Russ. J. Plant Physiol. - 2015. - Vol. 62, Is. 3. - P307-313, DOI 10.1134/S1021443715020144. - Cited References:30. - This work was supported by the State Assignment, topic no. 56.1.4, section VI of the Program for Basic Research of the State Academies of Sciences for 2013-2020. . - ISSN 1021-4437. - ISSN 1608-3407

РУБ Plant Sciences
Рубрики:
LEAF SENESCENCE
   ONTOGENIC APPROACH
   LIGHT DEPENDENCE
   PARAMETERS
Кл.слова (ненормированные):
Triticum sativus -- chlorophyll fluorescence parameters -- actinic light -- intensity -- leaf ontogeny
Аннотация: Wheat (Triticum sativus L.) seedlings of various ages (2- to 16-day-old plants) were used to study age-dependent changes in the chlorophyll fluorescence induction (CFI) at various light intensities during flu- orescence measurements. Plants were raised in a growth chamber using hydroponics with expanded clay, controlled environmental conditions, and 690 A mu mol/(m(2) s) photon flux density (PFD) of photosynthetically active radiation (PAR). Parameters of CFI were determined under actinic PFD of 380, 580, 820, and 1340 A mu mol/(m(2) s) PAR. The fifth leaf from the stem base, exposed to uniform lighting, was sampled for measurements. This leaf emerged at the plant age of 16 days. Based on fluorescence data, we calculated the maximal photochemical quantum yield of photosystem II (F (v)/F (m)), the effective photochemical quantum yield of PSII (Yield), parameters of photochemical (qP) and non-photochemical (qN and NPQ) quenching of chlorophyll fluorescence, the F (p)/F (t) ratio, and the "vitality index" (fluorescence decrease ratio, R (fd)). At moderate actinic PFD, applied commonly in PAM fluorometers (about 380 A mu mol/(m(2) s)), age-dependent changes in NPQ, F (p)/F (t), and R (fd) were observed. Analysis of CFI parameters in wheat leaves of different ages at PFD increasing from 380 to 820 A mu mol/(m(2) s) revealed that R (fd), NPQ, and qN are the most sensitive markers of the leaf age among all parameters tested. These suitable indicators can be used for rapid assessment of the leaf age.

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

Доп.точки доступа:
Nesterenko, T. V.; Shikhov, V. N.; Tikhomirov, A. A.; section VI of the Program for Basic Research of the State Academies of Sciences [56.1.4]

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Evaluation of cytogenetic abnormalities in cells of submerged plant Elodea canadensis in the Yenisei River section affected by industrial pollution: Field studies and laboratory experiments / A. Y. Bolsunovsky [et al.] // Dokl. Biol. Sci. - 2015. - Vol. 460, Is. 1. - P27-31, DOI 10.1134/S0012496615010044 . - ISSN 0012-4966
Кл.слова (ненормированные):
Elodea canadensis

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of SciencesKrasnoyarsk, Russian Federation
ИБФ СО РАН

Доп.точки доступа:
Bolsunovsky, A.Y.; Zotina, T.A.; Medvedeva, M.Y.; Trofimova, E.A.

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Characteristics of slow induction curve of chlorophyll fluorescence and CO2 exchange for the assessment of plant heat tolerance at various levels of light intensity [Text] / E. N. Zavorueva, S. A. Ushakova // Russ. J. Plant Physiol. - 2004. - Vol. 51, Is. 3. - P. 294-301, DOI 10.1023/B:RUPP.0000028674.39572.1c. - Cited References: 18 . - ISSN 1021-4437

РУБ Plant Sciences

Кл.слова (ненормированные):
Triticum aestivum -- Raphanus sativus var. minor -- fluorescence -- heat tolerance -- pigments -- CO2 exchange
Аннотация: The heat tolerance of wheat (Triticum aestivum L.) and radish (Raphanus sativus L. var. minor) cenoses exposed to elevated and damaging air temperatures (35 degreesC for 20 h, 45 degreesC for 7 h) under photoculture conditions at various levels of photosynthetically active radiation (PAR) was assessed by measuring characteristics of the slow induction curve of chlorophyll fluorescence at 682 and 734 nm and the CO2 exchange rate. Irrespective of the illumination level, the exposure of the cenoses to 35 degreesC did not induce irreversible changes in the plant photosynthetic apparatus. The lowest extent of damage to wheat and radish cenoses exposed to 45 degreesC was observed at 150 W/m(2) of PAR, whereas the highest damage of the plants was observed at an illumination level that was close to the compensation point of the cenose photosynthesis (50-70 W/m(2) of PAR at air temperature of 24 degreesC). Viability index proved to be the most sensitive. characteristic, compared to other characteristics, which were determined by measuring the slow phase of fluorescence induction at 682 and 734 nm. In the cenoses studied, the pattern of changes in the viability index in response to a stress factor was close to the changes in the photosynthetic rate.

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

Доп.точки доступа:
Zavorueva, E.N.; Ushakova, S.A.

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A continual model of soil organic matter transformations based on a scale of transformation rate [Text] / S. I. Bartsev, A. A. Pochekutov // Ecol. Model. - 2015. - Vol. 302. - P25-28, DOI 10.1016/j.ecolmodel.2015.01.030. - Cited References:18. - This work is supported by Basic Research Program of the Presidium of RAS Project No. 12 and Integration Project of SB RAS No. 21. . - ISSN 0304-3800. - ISSN 1872-7026

РУБ Ecology
Рубрики:
CARBON
   DECOMPOSITION
   DYNAMICS
   NITROGEN
   DECAY
Кл.слова (ненормированные):
Soil organic matter -- Continual model of soil -- Soil formation
Аннотация: The study proposes a model of transformation and decomposition of soil organic matter, based on using the rate of matter transformation as a continual scale of its transformation degree. The model is represented by one partial derivative differential equation that has an analytical solution. This model has only two adjustable parameters, while the number of experimentally determined parameters depends on how detailed the description of the plant litter is supposed to be. The model has been tested, and model parameters have been evaluated by comparing model predictions with the literature data on the stock of soil organic matter in different types of ecosystems. (C) 2015 Elsevier B.V. All rights reserved.

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Scopus
Держатели документа:
Inst Biophys SB RAS, Krasnoyarsk, Russia
Siberian Fed Univ, Inst Fundamental Biol & Biotechnol, Krasnoyarsk, Russia

Доп.точки доступа:
Bartsev, Sergey I.; Pochekutov, Aleksei A.; Basic Research Program of the Presidium of RAS Project [12]; Integration Project of SB RAS [21]

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Livers of terrestrial production animals as a source of long-chain polyunsaturated fatty acids for humans: An alternative to fish? [Text] / M. I. Gladyshev [et al.] // Eur. J. Lipid Sci. Technol. - 2015. - Vol. 117, Is. 9. - P1417-1421, DOI 10.1002/ejlt.201400449. - Cited References:41 . - ISSN 1438-7697. - ISSN 1438-9312

РУБ Food Science & Technology + Nutrition & Dietetics
Рубрики:
CARDIOVASCULAR-DISEASE
   DOCOSAHEXAENOIC ACID
   MUSCLE-TISSUE
   MEAT
Кл.слова (ненормированные):
Beef liver -- Chicken liver -- Essential fatty acids -- Pork liver
Аннотация: Long-chain polyunsaturated n-3 fatty acids (LC-PUFA), including eicosapentaenoic (EPA), and docosahexaenoic (DHA) are an essential part of human diets, but their main source, the wild fish catch, is limited. Terrestrial production animals, such as cattle, pigs, and chicken, can synthesize these compounds from the plant-derived precursor -linolenic acid, and the synthesis occurs mainly in liver. We estimated the putative contribution of liver products to the LC-PUFA supply in human nutrition, as an alternative to fish. We measured EPA and DHA contents in raw and cooked livers of the animals. Calculations of global production of EPA and DHA in the livers of these animals were done. Mean contents of LC-PUFA in raw livers of chicken, pigs, and cattle were comparable with those in some fish. Culinary treatments of the liver did not result in a decrease of EPA and DHA contents. Global production of EPA and DHA in animals' livers was estimated as approximate to 410(6)kg/year, while the global EPA+DHA supply through the wild fish catch is known to be 18010(6)kg/year. Thus, liver of production animals is an additional source of LC-PUFA for human nutrition, rather than an alternative to fish. Practical applications: Consumption of food with a high PUFA content and a low n-6/n-3 ratio is recommended for humans to prevent cardiovascular disease and psychiatric disorders. We found that cooked pork and beef liver is a valuable source of n-3 LC-PUFA in human nutrition. In contrast, cooked chicken liver had too high of a n-6/n-3 ratio and, thereby, had a lower nutritive value concerning n-3 LC-PUFA. An estimate has been made of the putative contribution of liver products of terrestrial animals to the LC-PUFA supply as alternative to fish in human nutrition.

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Держатели документа:
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk, Russia.
Krasnoyarsk State Agrarian Univ, Krasnoyarsk, Russia.

Доп.точки доступа:
Gladyshev, Michail I.; Makhutova, Olesia N.; Gubanenko, Galina A.; Rechkina, Ekaterina A.; Kalachova, Galina S.; Sushchik, Nadezhda N.

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Chromosomal abnormalities in roots of aquatic plant Elodea canadensis as a tool for testing genotoxicity of bottom sediments / T. Zotina [et al.] // Ecotoxicol. Environ. Saf. - 2015. - Vol. 122. - P384-391, DOI 10.1016/j.ecoenv.2015.08.021 . - ISSN 0147-6513
Кл.слова (ненормированные):
Anaphase-telophase -- Chromosome damage -- Heavy metals -- Macrophyte -- Radionuclides -- Sediment-contact tests -- Elodea canadensis
Аннотация: Submersed freshwater macrophytes are considered as relevant indicators for use in bulk bottom sediment contact tests. The purpose of this study was to estimate the validity of endpoints of aquatic plant Elodea canadensis for laboratory genotoxicity testing of natural bottom sediments. The inherent level of chromosome abnormalities (on artificial sediments) in roots of E. canadensis under laboratory conditions was lower than the percentage of abnormal cells in bulk sediments from the Yenisei River. The percentage of abnormal cells in roots of E. canadensis was more sensitive to the presence of genotoxic agents in laboratory contact tests than in the natural population of the plant. The spectra of chromosomal abnormalities that occur in roots of E. canadensis under natural conditions in the Yenisei River and in laboratory contact tests on the bulk bottom sediments from the Yenisei River were similar. Hence, chromosome abnormalities in roots of E. canadensis can be used as a relevant and sensitive genotoxicity endpoint in bottom sediment-contact tests. © 2015 Elsevier Inc.

Scopus,
WOS
Держатели документа:
Institute of Biophysics SB RAS, 50/50 Akademgorodok, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Zotina, T.; Medvedeva, M.; Trofimova, E.; Alexandrova, Y.; Dementyev, D.; Bolsunovsky, A.

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The Chemical Basis of Fungal Bioluminescence / K. V. Purtov [et al.] // Angew. Chem. Int. Ed. - 2015. - Vol. 54, Is. 28. - P8124-8128, DOI 10.1002/anie.201501779 . - ISSN 1433-7851
Кл.слова (ненормированные):
bioluminescence -- bioorganic chemistry -- biosynthesis -- luciferin -- natural products -- Biochemistry -- Bioluminescence -- Biosynthesis -- Metabolites -- Phosphorescence -- Biochemical mechanisms -- Bioorganic chemistry -- luciferin -- Natural products -- Plant secondary metabolites -- Structural similarity -- Fungi
Аннотация: Many species of fungi naturally produce light, a phenomenon known as bioluminescence, however, the fungal substrates used in the chemical reactions that produce light have not been reported. We identified the fungal compound luciferin 3-hydroxyhispidin, which is biosynthesized by oxidation of the precursor hispidin, a known fungal and plant secondary metabolite. The fungal luciferin does not share structural similarity with the other eight known luciferins. Furthermore, it was shown that 3-hydroxyhispidin leads to bioluminescence in extracts from four diverse genera of luminous fungi, thus suggesting a common biochemical mechanism for fungal bioluminescence. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Scopus,
WOS
Держатели документа:
Institute of Biophysics, Siberian Branch of the Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, Russian Federation
Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, Moscow, Russian Federation
Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
Pirogov Russian National Research Medical University, Ostrovitianov 1, Moscow, Russian Federation

Доп.точки доступа:
Purtov, K.V.; Petushkov, V.N.; Baranov, M.S.; Mineev, K.S.; Rodionova, N.S.; Kaskova, Z.M.; Tsarkova, A.S.; Petunin, A.I.; Bondar, V.S.; Rodicheva, E.K.; Medvedeva, S.E.; Oba, Y.; Arseniev, A.S.; Lukyanov, S.; Gitelson, J.I.; Yampolsky, I.V.

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

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

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

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

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

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Specificity of lipid composition in two Botryococcus strains, the producers of liquid hydrocarbons [Text] / T. G. Volova, G. S. Kalacheva, N. O. Zhila // Russ. J. Plant Physiol. - 2003. - Vol. 50, Is. 5. - P. 627-633, DOI 10.1023/A:1025636007023. - Cited References: 17 . - ISSN 1021-4437

РУБ Plant Sciences
Рубрики:
GREEN-ALGA BOTRYOCOCCUS
   BRAUNII
   CULTURES
   BATCH
   RACE
Кл.слова (ненормированные):
Botryococcus -- hydrocarbons -- structure -- mass spectra
Аннотация: The structure of liquid hydrocarbons and fatty acids produced by the green alga Botryococcus was identified. Two representatives of this alga, Botryococcus braunii Kutz, strain IPPAS H-252, introduced into culture earlier and an organism isolated for the first time from the Shira Lake, were used for this identification. Fatty acid composition of B. braunii, strain H-252, lipids was characterized by a high content of trienoic acids of C16-C18 series. The hydrocarbon composition of this strain was represented by straight-chain and branched-chain C14-C28 components; long-chain linear aliphatic C20-C27 hydrocarbons (54.4%) and 2,6,10,14-tetramethylhexadecane (20.5%) predominated among them. The strain H-252 differed in its fatty acid and hydrocarbon composition from the strains described earlier as Botryococcus braunii. The fatty acid composition of the Botryococcus isolate was represented mainly by C12-C32 saturated and monoenoic acids. The hydrocarbons formed by this isolate were represented by dienoic and trienoic components. C29 (48.9-56.3%) and C31 (11.1-16.3%) hydrocarbons predominated among the C23-C31 dienoic hydrocarbons, and C27, C29, and C31 trienoic hydrocarbons comprised 2.5-2.6% of total hydrocarbons. This type of hydrocarbons and the lipid fatty acid composition were characteristic for the race A of B. braunii.

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

Доп.точки доступа:
Volova, T.G.; Kalacheva, G.S.; Zhila, N.O.

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10.

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

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

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

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

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

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11.

Light intensity and production parameters of phytocenoses cultivated on soil-like substrate under controled environment conditions [Text] / A. A. Tikhomirov [et al.] ; ed. M Nelson [et al.] // SPACE LIFE SCIENCES: CLOSED ARTIFICIAL ECOSYSTEMS AND LIFE SUPPORT SYSTEMS. Ser. ADVANCES IN SPACE RESEARCH : PERGAMON-ELSEVIER SCIENCE LTD, 2003. - Vol. 31: Meeting of F4 1 Session of the 34th Scientific Assembly of COSPAR (OCT, 2002, HOUSTON, TEXAS), Is. 7. - P. 1775-1780, DOI 10.1016/S0273-1177(03)00120-0. - Cited References: 11 . - ISBN 0273-1177

РУБ Engineering, Aerospace + Astronomy & Astrophysics + Ecology + Geosciences, Multidisciplinary + Meteorology & Atmospheric Sciences
Рубрики:
SYSTEM
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 mumol(.)m(-2.)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 mumol(.)m(-2.)s(-1). Light intensity of 1150 mumol(.)m(2.)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 mumol(.)m(-2.)s(-2). 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 mumol(.)m(-2.)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 micro- elements. 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. (C) 2003 COSPAR. Published by Elsevier Science Ltd. All rights reserved.

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Держатели документа:
RAS SB, Inst Biophys, Krasnoyarsk 660036, Russia
Tomsk VV Kuibyshev State Univ, Tomsk 634050, Russia
Univ Clermont Ferrand, LGCB, F-63174 Aubiere, France
European Space Agcy, European Space Technol Ctr, NL-2200 AG Noordwijk, Netherlands
ИБФ СО РАН : 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, C...; Nelson, M \ed.\; Pechurkin, NS \ed.\; Dempster, WF \ed.\; Somova, LA \ed.\; Somo, , LA \ed.\

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12.

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

РУБ Engineering, Aerospace

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

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

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

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13.

Effect of growing conditions on wheat hormonal status and productivity in experimental ecological system [Text] / R. A. Karnachuk [et al.] // Russ. J. Plant Physiol. - 2003. - Vol. 50, Is. 2. - P. 237-242, DOI 10.1023/A:1022933516663. - Cited References: 24 . - ISSN 1021-4437

РУБ Plant Sciences
Рубрики:
GRAINS
Кл.слова (ненормированные):
Triticum aestivum -- phytohormones -- CO2 -- illuminance -- productivity
Аннотация: The levels of free and bound forms of IAA, ABA, cytokinins (CK), and gibberellins, as well as growth characteristics and productivity were investigated in two wheat lines. The plants were grown under controlled conditions in an artificial ecosystem that allowed the irradiance, CO2 concentration, and rhizosphere temperature to be changed. The main difference in the hormonal status of leaves of tall spring wheat, line 232, and dwarf wheat, line 95-3, was the absence of GA(9) gibberellins in the latter. It was found that the light intensity and temperature of rhizosphere insignificantly affected the balance of endogenous phytohormones and HI in wheat. The elevation of CO2 concentration resulted in a considerable increase in the content of free IAA, an appearance of free GA(9), and a rise in the productivity of wheat, line 232. The concentration of CO2 was shown to be a major parameter that determined HI in the experimental ecological system.

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Держатели документа:
Tomsk VV Kuibyshev State Univ, Dept Plant Physiol & Biotechnol, Tomsk 634050, Russia
Russian Acad Sci, Siberian Div, Inst Biophys, Krasnoyarsk 660036, Russia
Estec, ESA, Environm Control & Life Support Sect, Noordwijk, Netherlands
Univ Clermont Ferrand, LGCB, Clermont Ferrand, France
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Karnachuk, R.A.; Vaishlya, O.B.; Dorofeev, V.Y.; Ushakova, S.A.; Tikhomirov, A.A.; Lasseur, C...; Gros, J.B.

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14.

A temperature dependence of the intra- and extracellular fatty-acid composition of green algae and cyanobacterium [Text] / N. N. Sushchik [et al.] // Russ. J. Plant Physiol. - 2003. - Vol. 50, Is. 3. - P. 374-380, DOI 10.1023/A:1023830405898. - Cited References: 31 . - ISSN 1021-4437

РУБ Plant Sciences
Рубрики:
SURFACE-FILM
   LIPIDS
   WATER
   BLOOM
   SEA
   BAY
Кл.слова (ненормированные):
green algae -- cyanobacterium -- lipids -- fatty acids -- secretion
Аннотация: The effect of ambient temperature on the composition of intracellular fatty acids and the release of free fatty acids (FFA) into a medium by cyanobacterium Spirulina platensis and eukaryotic microalgae, Chlorella vulgaris and Botryococcus braunii, was studied using their batch cultures. It was found that all the species studied, regardless of their taxonomic status, responded to the temperature regime by similar changes in their intracellular fatty acid composition: the relative content of more unsaturated fatty acids decreased with the elevation of temperature. At the same time, in the prokaryote, this temperature shift blocked, first of all, the elongation of 16:0 to 18:0 and then their further desaturation. In eukaryotes, the change in the desaturation of dienoic to trienoic fatty acids was the most pronounced process. The ratio of dienoic to trienoic fatty acids remained almost unchanged in S. platensis. The relative content of extracellular unsaturated FFA increased in the prokaryotic organism S. platensis at a higher temperature. But no significant changes in the composition of extracellular unsaturated FFA were detected in eukaryotic algae upon temperature elevation.

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

Доп.точки доступа:
Sushchik, N.N.; Kalacheva, G.S.; Zhila, N.O.; Gladyshev, M.I.; Volova, T.G.

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15.

Specific characteristics of Rhodiola rosea growth and development under the photoculture conditions [Text] / N. P. Kovaleva, A. A. Tikhomirov, V. A. Dolgushev // Russ. J. Plant Physiol. - 2003. - Vol. 50, Is. 4. - P. 527-531, DOI 10.1023/A:1024781025696. - Cited References: 19 . - ISSN 1021-4437

РУБ Plant Sciences

Кл.слова (ненормированные):
Rhodiola rosea -- plant growth and development -- photoculture -- salidroside
Аннотация: Growth and development of Rhodiola rosea L. plants (the family Crassulaceae) were compared in their natural habitat, field stands, and in photoculture. By the indices of growth and development, plants grown for 135-137 days under the intensive photoculture were shown to exceed the 3-year-old plants developed in the natural habitats and 1-1.5-year-old plants grown in the field stands. Under the photoculture, 35% of all the plants under study started flowering at the day 75-77 after seed germination. The content of salidroside in the rhizomes of the 135-137-day-old plants was 0.4-0.6% per dry weight. Following photoculturing for 245 days, rhizome weight increased 4.5-fold as compared to the 135-137-day-old plants, and the salidroside concentration reached 1.2%, the level corresponding to the maximum content of this glycoside in the plants growing in their natural habitat and exceeding by 1.5-3 times the levels observed in the plants grown in the field stands. Under the photoculture conditions, plants of R. rosea were shown to grow without the dormancy period. Several factors apparently raised the salidroside concentration in the 245-day-old plants under the photoculture conditions, including enhanced growth, absence of the dormancy period and the period of lowered temperatures; as a whole, these factors promoted the detoxification, storage, and/or transport of the primary metabolic products.

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

Доп.точки доступа:
Kovaleva, N.P.; Tikhomirov, A.A.; Dolgushev, V.A.

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16.

Use of the aquatic plant Elodea canadensis to assess toxicity and genotoxicity of Yenisei River sediments / T. A. Zotina [et al.] // Environ. Toxicol. Chem. - 2015. - Vol. 34, Is. 10. - P2310-2321, DOI 10.1002/etc.3057 . - ISSN 0730-7268
Кл.слова (ненормированные):
Aquatic plants -- Biomarkers -- Genotoxicity -- Sediment quality -- Sediment toxicity -- Biomarkers -- Chromosomes -- Cytotoxicity -- Pollution -- Pollution control -- Radioactive waste disposal -- Radioactivity -- River pollution -- Sediments -- Toxicity -- Aquatic plants -- Genotoxicities -- Laboratory bioassay -- Radioactive contamination -- Radioactive pollution -- Sediment quality -- Sediment toxicity -- Toxicity endpoints -- Rivers -- Article -- bioassay -- controlled study -- cytotoxicity -- Elodea canadensis -- environmental exposure -- genotoxicity -- indicator organism -- lake sediment -- mitosis index -- nonhuman -- plant growth -- plant root -- priority journal -- radioactive pollution -- river -- root length -- Russian Federation -- sensitivity analysis -- shoot -- toxicity testing -- Elodea -- Elodea canadensis
Аннотация: The toxicity, cytotoxicity, and genotoxicity of bulk sediments from the Yenisei River (Siberia, Russia) were estimated in laboratory bioassays based on several endpoints in the aquatic plant Elodea canadensis. The bottom sediment samples were collected in the Yenisei River upstream and downstream of the sources of chemical and radioactive contamination. The testing revealed different sensitivities of Elodea endpoints to the quality of the bottom sediment: weight of shoots
Scopus,
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Держатели документа:
Institute of Biophysics, Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Zotina, T. A.; Trofimova, E. A.; Medvedeva, M. Y.; Dementyev, D. V.; Bolsunovsky, A. Y.

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17.

Interaction effects of light intensity and nitrogen concentration on growth, photosynthetic characteristics and quality of lettuce (Lactuca sativa L. Var. youmaicai) / Y. M. Fu [et al.] // Sci. Hortic. - 2017. - Vol. 214. - P51-57, DOI 10.1016/j.scienta.2016.11.020. - Cited References:43. - This work was supported by the Ministry of Science and Technology of China (No. 2013AA103004) and National Natural Science Foundation of China (No. 31301706). . - ISSN 0304-4238. - ISSN 1879-1018

РУБ Horticulture
Рубрики:
WATER-USE EFFICIENCY
   LIFE-SUPPORT-SYSTEM
   GAS-EXCHANGE
   BLUE-LIGHT
Кл.слова (ненормированные):
Light intensity -- Nitrogen concentration -- Vitamin C -- Vegetable quality -- Facility agriculture
Аннотация: Light intensity and nitrogen concentration of nutrient solution are considered crucial for the contents of vitamin C and nitrate in cultivated leaf vegetables. We here investigated the effects of various combinations of light intensity (60,140 and 220 mu mol m(-2) s(-1)) and nitrogen concentration (7,15 and 23 mmol L-1) of the solution on the growth, photosynthetic characteristics, vitamin C and nitrate content of lettuce. Our results demonstrate that the lettuce had the largest dry biomass at the high illumination of 220 mu mol m(-2) s(-1) and low nitrogen of 7 mmol L-1. The higher light and low nitrogen also contributed to the accumulation of vitamin C and decrease of nitrate in lettuce leaves. The effect of nitrogen supply on chlorophyll concentrations was more efficient under low light than high illumination. Our results reveal that there was an obvious interaction between light intensity and nitrogen available for the photosynthesis, yield and quality of lettuce. This study provides valuable insights into the combinational regulation of light intensity and nitrogen supply for improving growth and nutritional quality of vegetables grown in greenhouse and plant factory. (C) 2016 Elsevier B.V. All rights reserved.

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Держатели документа:
Beihang Univ, Sch Biol Sci & Med Engn, Beijing 100191, Peoples R China.
Beihang Univ, Inst Environm Biol & Life Support Technol, Beijing 100191, Peoples R China.
Beihang Univ, Int Joint Res Ctr Aerosp Biotechnol & Med Engn, Beijing 100191, Peoples R China.
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk, Russia.

Доп.точки доступа:
Fu, Yuming; Li, HongYan; Yu, Juan; Liu, Hui; Cao, ZeYu; Manukovsky, N. S.; Ministry of Science and Technology of China [2013AA103004]; National Natural Science Foundation of China [31301706]

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18.

Development of human exometabolite deep mineralization method for closed ecosystems / A. A. Tikhomirov [et al.] // Dokl. Biochem. Biophys. - 2016. - Vol. 470, Is. 1. - P316-318, DOI 10.1134/S1607672916050021. - Cited References:9. - The study was supported by the Russian Science Foundation (project no. 14-14-00599). . - ISSN 1607-6729. - ISSN 1608-3091

РУБ Biochemistry & Molecular Biology + Biophysics

Аннотация: Methods of physicochemical further oxidation of hardly soluble sediment obtained from "wet combustion" of human exometabolites applied to space-purpose Bio Technological Life Support Systems (BTLLS) were studied. Most hardly dissoluble sediment containing Ca, P, Mg, and other essential plant nutrition elements were shown to dissolve in H2O2 and HNO3 aqueous media activated by alternating electric current. Dissolved additional mineral elements allowed (as demonstrated for lettuce) to increase the productivity of BTLLS phototrophic unit plants more than twice, which is comparable to their productivity on standard Knop solution with balanced chemical composition. Thus, dissolved mineral elements can be involved into BTLLS turnover process and increase its closure degree.

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

Доп.точки доступа:
Tikhomirov, A. A.; Trifonov, S. V.; Morozov, E. A.; Kudenko, Yu. A.; Kalacheva, G. S.; Ushakova, S. A.; Russian Science Foundation [14-14-00599]

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19.

Modeling the boundaries of plant ecotones of mountain ecosystems / Y. Ivanova, V. Soukhovolsky // Forests. - 2016. - Vol. 7, Is. 11, DOI 10.3390/f7110271 . - ISSN 1999-4907
Кл.слова (ненормированные):
Biodiversity -- Boundaries of ecotones -- Ecotone -- Mountain forest ecosystems -- Biodiversity -- Climate change -- Climate models -- Ecology -- Forestry -- Landforms -- Vegetation -- Boundary shifts -- Ecotone -- Forest inventory data -- Mountain ecosystems -- Mountain forests -- Second-order phase transition -- Species composition -- Vegetation belt -- Ecosystems
Аннотация: The ecological second-order phase transition model has been used to describe height-dependent changes in the species composition of mountain forest ecosystems. Forest inventory data on the distribution of various tree species in the Sayan Mountains (south Middle Siberia) are in good agreement with the model proposed in this study. The model was used to estimate critical heights for different altitudinal belts of vegetation, determine the boundaries and extents of ecotones between different vegetation belts, and reveal differences in the ecotone boundaries between the north- and south-facing transects. An additional model is proposed to describe ecotone boundary shifts caused by climate change. © 2016 by the authors.

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Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Federal Research Center 'Krasnoyarsk Science Center SB RAS', Academgorodok 50-50, Krasnoyarsk, Russian Federation
V.N. Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences, Federal Research Center 'Krasnoyarsk Science Center SB RAS', Academgorodok 50-28, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Ivanova, Y.; Soukhovolsky, V.

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20.

Developing of discrimination experiment to find most adequate model of plant's multi-nutrient functional response / M. Yu Saltykov, S. I. Bartsev // IOP Conference Series: Materials Science and Engineering : Institute of Physics Publishing, 2017. - Vol. 173: 5th International Workshop on Mathematical Models and their Applications 2016, IWMMA 2016 (7 November 2016 through 9 November 2016, ) Conference code: 126825, Is. 1, DOI 10.1088/1757-899X/173/1/012017
Кл.слова (ненормированные):
Ecology -- Metabolism -- Physiology -- Adequate models -- Complex model -- Discrimination experiments -- Ecological models -- Functional response -- Trophic level -- Typical patterns -- Nutrients
Аннотация: To create reliable Closed Ecological Life Support Systems (CELSS) it is necessary to have models which can predict CELSS dynamic with good accuracy. However it was shown that conventional ecological models cannot describe CELSS correctly if it is closed by more than one element. This problem can be solved by means more complex models than conventional ones - so called flexible metabolism models. However it is possible that CELSS also can be described correctly in "semi-conventional" framework - when only one trophic level is described by flexible metabolism model. Another problem in CELSS modeling is existence of different and incompatible hypotheses about relationships between plants growth rate and amounts of nutrients (functional responses). Difficulty of testing these hypotheses is associated with multi-nutrient dependency of growth rate and comprehensive experimental studies are expensive and time-consuming. This work is devoted to testing the hypothesis that "semi-conventional" approach is enough to describe CELSS, and to planning the discrimination experiment on selecting correct type of the plant's functional response. To do that three different models of plants (one flexible and two conventional) were investigated both in the scope of CELSS model, and in hemostat model. Numerical simulations show that each of the models has typical patterns which can be determined in experiment with real plants. © Published under licence by IOP Publishing Ltd.

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Держатели документа:
Institute of Biophysics SB RAS, Akademgorodok 50-50, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Yu Saltykov, M.; Bartsev, S. I.

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