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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gitelson I.I., Tikhomirov A.A., Parshina O.V., Ushakova S.A., Kalacheva G.S.
Заглавие : Volatile metabolites of higher plant crops as a photosynthesizing life support system component under temperature stress at different light intensities
Место публикации : Advances in Space Research. - 2003. - Vol. 31, Is. 7. - С. 1781-1786. - ISSN 02731177 (ISSN) , DOI 10.1016/S0273-1177(03)00121-2
Ключевые слова (''Своб.индексиров.''): composition--crops--heat resistance--metabolites--photosynthesis--volatile metabolites--space research--biosphere--article--comparative study--gas--growth, development and aging--heat--indoor air pollution--light--metabolism--microclimate--photon--photosynthesis--physiology--radiation exposure--volatilization--wheat--air pollution, indoor--environment, controlled--gases--heat--life support systems--light--photons--photosynthesis--triticum--volatilization
Аннотация: The effect of elevated temperatures of 35 and 45В°C (at the intensities of photosynthetically active radiation 322, 690 and 1104 ?mol-m-2-s-1) on the photosynthesis, respiration, and qualitative and quantitative composition of the volatiles emitted by wheat (Triticum aestuvi L., cultivar 232) crops was investigated in growth chambers. Identification and quantification of more than 20 volatile compounds (terpenoids - ?-pinene, ?3 carene, limonene, benzene, ?-and transcaryophyllene, ?- and ?-terpinene, their derivatives, aromatic hydrocarbons, etc.) were conducted by gas chromatograph/mass spectrometry. Under light intensity of 1104 ?mol-m-2-s-1, heat resistance of photosynthesis and respiration increased at 35В°C and decreased at 45В°C. The action of elevated temperatures brought about variations in the rate and direction of the synthesis of volatile metabolites. The emission of volatile compounds was the greatest under a reduced irradiation of 322 ?mol-m-2-s-1 and the smallest under 1104 ?mol-m-2-s-1 at 35В°C. During the repair period, the contents and proportions of volatile compounds were different from their initial values, too. The degree of disruption and the following recovery of the functional state depended on the light intensity during the exposure to elevated temperatures. The investigation of the atmosphere of the growth chamber without plants has revaled the substances that were definitely technogenic in origin: tetramethylurea, dimethylsulfide, dibutylsulfide, dibutylphthalate, and a number of components of furan and silane nature. В© 2003 COSPAR. Published by Elsevier Science Ltd. All rights reserved.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gitel'zon I.I., Tikhomirov A.A., Parshina O.V., Ushakova S.A., Kalacheva G.S.
Заглавие : Volatile Metabolites and External CO2 Exchange of Wheat Cenoses under Optimal Conditions and Thermal Stress
Место публикации : Prikladnaya Biokhimiya i Mikrobiologiya. - 2002. - Vol. 38, Is. 1. - С. 95. - ISSN 05551099 (ISSN)
Аннотация: The effects of elevated temperature (35 and 45В°C) on photosynthesis, respiration, and both the qualitative and quantitative compositions of volatile emissions (VE) of wheat (Triticum aestuvum L. cultivar 232) cenoses at light intensities of 70, 150, or 240 W/m2 of photosynthetically available radiation (PAR) were studied. At a PAR of 240 W/m2, the thermal stabilities of photosynthesis and respiration increased at 35В°C and decreased at 45В°C. Elevated temperatures nonuniformly changed the rates and direction of VE syntheses. In this process, the highest increase in VE evolution was observed at 70 W/m2; the lowest, at 240 W/m2 and 35В°C. In addition, the concentrations and composition of VE during the repair period differed from the initial values.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gitel'son I.I., Tikhomirov A.A., Parshina O.V., Ushakova S.A., Kalacheva G.S.
Заглавие : Volatile metabolites and external CO2 exchange of wheat cenoses under optimal conditions and thermal stress
Колич.характеристики :5 с
Место публикации : Appl. Biochem. Microbiol.: MAIK NAUKA/INTERPERIODICA, 2002. - Vol. 38, Is. 1. - P78-82. - ISSN 0003-6838, DOI 10.1023/A:1013212907872
Примечания : Cited References: 17
Предметные рубрики: EMISSIONS
Аннотация: The effects of elevated temperature (35 and 45degreesC) on photosynthesis, respiration, and both the qualitative and quantitative compositions of volatile emissions (VE) of wheat (Triticum aestuvum L. cultivar 232) cenoses at light intensities of 70, 150, or 240 W/m(2) of photosynthetically available radiation (PAR) were studied. At a PAR of 240 W/m(2), the thermal stabilities of photosynthesis and respiration increased at 35degreesC and decreased at 45degreesC. Elevated temperatures nonuniformly changed the rates and direction of VE syntheses. In this process, the highest increase in VE evolution was observed at 70 W/m(2) and 35degreesC; the lowest, at 240 W/m(2). In addition, the concentrations and composition of VE during the repair period differed from the initial values.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gitel'son I.I., Tikhomirov A.A., Parshina O.V., Ushakova S.A., Kalacheva G.S.
Заглавие : Volatile metabolites and external CO2 exchange of wheat cenoses under optimal conditions and thermal stress
Место публикации : Applied Biochemistry and Microbiology. - 2002. - Vol. 38, Is. 1. - С. 78-82. - ISSN 00036838 (ISSN) , DOI 10.1023/A:1013212907872
Ключевые слова (''Своб.индексиров.''): carbon dioxide--volatile agent--article--biosynthesis--carbon dioxide transport--chemical composition--concentration (parameters)--controlled study--cultivar--metabolite--nonhuman--photosynthesis--photosynthetically active radiation--plant metabolism--qualitative analysis--quantitative analysis--stress--temperature sensitivity--thermal exposure--thermostability--wheat--rickettsia sp. par--triticum--triticum aestivum
Аннотация: The effects of elevated temperature (35 and 45В°C) on photosynthesis, respiration, and both the qualitative and quantitative compositions of volatile emissions (VE) of wheat (Triticum aestuvum L. cultivar 232) cenoses at light intensities of 70, 150, or 240 W/m2 of photosynthetically available radiation (PAR) were studied. At a PAR of 240 W/m2, the thermal stabilities of photosynthesis and respiration increased at 35В°C and decreased at 45В°C. Elevated temperatures nonuniformly changed the rates and direction of VE syntheses. In this process, the highest increase in VE evolution was observed at 70 W/m2 and 35В°C; the lowest, at 240 W/m2. In addition, the concentrations and composition of VE during the repair period differed from the initial values.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Shishatskaya E., Menzyanova N., Zhila N., Prudnikova S., Volova T., Thomas S.
Заглавие : Toxic effects of the fungicide tebuconazole on the root system of fusarium-infected wheat plants
Место публикации : Plant Physiol. Biochem.: Elsevier Masson SAS, 2018. - Vol. 132. - С. 400-407. - ISSN 09819428 (ISSN) , DOI 10.1016/j.plaphy.2018.09.025
Ключевые слова (''Своб.индексиров.''): border cells--carbonylated proteins--free proline--fusarium--malondialdehyde--tebuconazole
Аннотация: The study investigates toxic effects of the fungicide tebuconazole (TEB) on Fusarium-infected wheat (Triticum aestivum) plants based on the morphological characteristics of root apices and changes in the integrated parameters of redox homeostasis, including the contents of free proline and products of peroxidation of proteins (carbonylated proteins, CP) and lipids (malondialdehyde, MDA) in roots. In two-day-old wheat sprouts infected by Fusarium graminearum, the levels of proline, CP, and border cells of root apices are higher than in roots of uninfected sprouts by a factor of 1.4, 8.0, and 3, respectively. The triazole fungicide tebuconazole (TEB) at the concentrations of 0.01, 0.10, and 1.00 ?g ml?1 of medium causes a dose-dependent decrease in the number of border cells. The study of the effects of TEB and fusarium infection on wheat plants in a 30-day experiment shows that the effect of the fungicide TEB on redox homeostasis in wheat roots varies depending on the plant growth stage and is significantly different in ecosystems with soil and plants infected by Fusarium phytopathogens. The study of the morphology of root apices shows that the toxic effects of TEB and fusarium infection are manifested in the destructive changes in root apices and the degradation of the root tip mantle. © 2018 Elsevier Masson SAS
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ushakova S.A., Tikhomirov A.A.
Заглавие : Tolerance of LSS plant component to elevated temperatures
Место публикации : Acta Astronautica. - 2002. - Vol. 50, Is. 12. - С. 759-764. - ISSN 00945765 (ISSN) , DOI 10.1016/S0094-5765(02)00010-3
Ключевые слова (''Своб.индексиров.''): metabolism--photosynthesis--rate constants--thermal effects--thermoanalysis--thermal tolerance--life support systems (spacecraft)--carbon dioxide--adaptation--article--brassicaceae--comparative study--heat--instrumentation--light--metabolism--microclimate--photosynthesis--physiology--plant physiology--wheat--adaptation, physiological--brassicaceae--carbon dioxide--ecological systems, closed--heat--life support systems--light--photosynthesis--plant physiology--triticum
Аннотация: Stability of LSS based on biological regeneration of water, air and food subject to damaging factors is largely dependent on the behavior of the photosynthesizing component represented, mainly, by higher plants. The purpose of this study is to evaluate the tolerance of uneven-aged wheat and radish cenoses to temperature effects different in time and value. Estimation of thermal tolerance of plants demonstrated that exposure for 20 h to the temperature increasing to 45В°C brought about irreversible damage both in photosynthetic processes (up to 80% of initial value) and the processes of growth and development. Kinetics of visible photosynthesis during exposure to elevated temperatures can be used to evaluate critical exposure time within the range of which the damage of metabolic processes is reversible. With varying light intensity and air temperature it is possible to find a time period admissible for the plants to stay under adverse conditions without considerable damage of metabolic processes. В© 2002 Elsevier Science Ltd. All rights reserved.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Nesterenko T.V., Shikhov V.N., Tikhomirov A.A.
Заглавие : Thermoinduction of chlorophyll fluorescence and the age-related condition of higher plant leaves
Колич.характеристики :8 с
Место публикации : Russ. J. Plant Physiol.: MAIK NAUKA/INTERPERIODICA, 2001. - Vol. 48, Is. 2. - P244-251. - ISSN 1021-4437, DOI 10.1023/A:1009016520582
Примечания : Cited References: 27
Ключевые слова (''Своб.индексиров.''): thermoinduction of chlorophyll fluorescence--leaf--development
Аннотация: The age-related changes in the temperature dependence curves (TDC) of chlorophyll fluorescence were studied in leaf segments of wheat (Triticum aestivum L.), tomato (Lycopersicum esculentum Mill.), and cucumber (Cucumis sativum L.) plants grown under controlled photoculture conditions. Three major TDC patterns of chlorophyll fluorescence were identified within the temperature range of 25-70 degreesC, with each of the patterns corresponding to a certain phase of leaf development. The transition from one type of thermogram to another was a gradual and ordered process. The magnitude of the low-temperature TDC peak increased until leaves completely expanded and declined with leaf senescence. In the course of leaf senescence, the thermograms exhibited an additional shoulder, which further changed into a peak at 55-65 degreesC with increasing magnitude. Our data provide the basis for assessing leaf age from the type of chlorophyll fluorescence thermogram and the changes in the particular indices characteristic of TDC of chlorophyll fluorescence.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Nesterenko T.V., Shikhov V.N., Tikhomiro A.A.
Заглавие : Thermoinduction of chlorophyll fluorescence and the age-related condition of higher plant leaves
Место публикации : Russian Journal of Plant Physiology. - 2001. - Vol. 48, Is. 2. - С. 244-251. - ISSN 10214437 (ISSN) , DOI 10.1023/A:1009016520582
Ключевые слова (''Своб.индексиров.''): development--leaf--thermoinduction of chlorophyll fluorescence--cucumis--cucumis sativus--embryophyta--lycopersicon esculentum--sativum--triticum aestivum
Аннотация: The age-related changes in the temperature dependence curves (TDC) of chlorophyll fluorescence were studied in leaf segments of wheat (Triticum aestivum L.), tomato (Lycopersicum esculentum Mill.), and cucumber (Cucumis sativum L.) plants grown under controlled photoculture conditions. Three major TDC patterns of chlorophyll fluorescence were identified within the temperature range of 25-70В°C, with each of the patterns corresponding to a certain phase of leaf development. The transition from one type of thermogram to another was a gradual and ordered process. The magnitude of the low-temperature TDC peak increased until leaves completely expanded and declined with leaf senescence. In the course of leaf senescence, the thermograms exhibited an additional shoulder, which further changed into a peak at 55-65В°C with increasing magnitude. Our data provide the basis for assessing leaf age from the type of chlorophyll fluorescence thermogram and the changes in the particular indices characteristic of TDC of chlorophyll fluorescence.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Velichko V. V., Tikhomirov A. A., Ushakova S. A., Trifonov S. V., Gribovskaya I. V.
Заглавие : The effect of supplementation of the soil-like substrate with wheat straw mineralized to different degrees on wheat productivity in closed ecosystems
Место публикации : Life Sci. Space Res.: Elsevier Ltd, 2020. - Vol. 26. - С. 132-139. - ISSN 22145524 (ISSN), DOI 10.1016/j.lssr.2020.06.001
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
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Velichko V. V., Tikhomirov A. A., Ushakova S. A., Trifonov S. V., Gribovskaya I. V.
Заглавие : The effect of supplementation of the soil-like substrate with wheat straw mineralized to different degrees on wheat productivity in closed ecosystems
Колич.характеристики :8 с
Место публикации : Life Sci. Space Res.: ELSEVIER, 2020. - Vol. 26. - С. 132-139. - ISSN 2214-5524, DOI 10.1016/j.lssr.2020.06.001. - ISSN 2214-5532(eISSN)
Примечания : Cited References:27
Предметные рубрики: EXPERIMENTAL-MODEL
ESTIMATED PORTION
GROWTH
EARTH
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.
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11.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Velichko V. V., Tikhomirov A. A., Ushakova S. A., Trifonov S. V., Gribovskaya I. V.
Заглавие : The effect of supplementation of the soil-like substrate with wheat straw mineralized to different degrees on wheat productivity in closed ecosystems
Колич.характеристики :8 с
Место публикации : Life Sci. Space Res.: ELSEVIER, 2020. - Vol. 26. - С. 132-139. - ISSN 2214-5524, DOI 10.1016/j.lssr.2020.06.001. - ISSN 2214-5532(eISSN)
Примечания : Cited References:27
Предметные рубрики: EXPERIMENTAL-MODEL
ESTIMATED PORTION
GROWTH
EARTH
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.
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12.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Tikhomirov A.A., Ushakova S.A., Manukovsky N.S., Lisovsky G.M., Kudenko Yu.A., Koyalev V.S., Gribovskaya I.V., Tirranen L.S., Zolotukhin I.G., Gros J.B., Lasseur Ch.
Заглавие : Synthesis of biomass and utilization of plants wastes in a physical model of biological life-support system
Место публикации : Acta Astronautica. - 2003. - Vol. 53, Is. 4-10. - С. 249-257. - ISSN 00945765 (ISSN) , DOI 10.1016/S0094-5765(03)00137-1
Ключевые слова (''Своб.индексиров.''): ecosystems--microorganisms--ph--photosynthesis--plants (botany)--synthesis (chemical)--waste utilization--biological life support systems (blls)--gas exchange--plant respiration--biomass--carbon dioxide--agaricales--article--biomass--bioremediation--growth, development and aging--hydroponics--incineration--metabolism--methodology--microbiology--microclimate--photosynthesis--plant physiology--radish--space flight--waste management--weightlessness--wheat--agaricales--biodegradation, environmental--biomass--carbon dioxide--ecological systems, closed--environmental microbiology--hydroponics--incineration--life support systems--photosynthesis--plant physiology--raphanus--space flight--triticum--waste management--weightlessness
Аннотация: The paper considers problems of biosynthesis of higher plants' biomass and "biological incineration" of plant wastes in a working physical model of biological LSS. The plant wastes are "biologically incinerated" in a special heterotrophic block involving Califomian 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 man-made ecosystem realized complete utilization of plant wastes and involved them into the intrasystem turnover. В© 2003 International Astronautical Federation. Published by Elsevier Science Ltd. All rights reserved.
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13.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Tikhomirov A.A.
Заглавие : Spectral composition of light and plant productivity
Место публикации : Advances in Space Research. - 1996. - Vol. 18, Is. 4-5. - С. 259-263. - ISSN 02731177 (ISSN)
Ключевые слова (''Своб.индексиров.''): article--biology--cucumber--growth, development and aging--illumination--light--maize--photon--photosynthesis--plant--radiation exposure--spectroscopy--sunflower--tomato--wheat--cucumis sativus--helianthus--light--lighting--lycopersicon esculentum--photobiology--photons--photosynthesis--plants--spectrum analysis--triticum--zea mays
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14.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ushakova S.A., Zolotukhin I.G., Tikhomirov A.A., Tikhomirova N.A., Kudenko Yu.A., Gribovskaya I.V., Balnokin Yu., Gros J.B.
Заглавие : Some methods for human liquid and solid waste utilization in bioregenerative life-support systems
Место публикации : Applied Biochemistry and Biotechnology. - 2008. - Vol. 151, Is. 2-3. - С. 676-685. - ISSN 02732289 (ISSN) , DOI 10.1007/s12010-008-8291-3
Ключевые слова (''Своб.индексиров.''): closure--human waste--life-support systems--salicornia--sodium chloride--above-ground biomass--biological lives--bioregenerative--closure--cultivation process--culture methods--human waste--irrigation waters--life-support systems--manned space missions--mineral elements--physico-chemical methods--salicornia--salicornia europaea--salt-tolerant--soil-like substrates--biomass--body fluids--electrodialysis--grain (agricultural product)--irrigation--liquids--metal refining--minerals--mining--oxidation--plant shutdowns--sodium chloride--soils--solid wastes--substrates--water supply--vegetation--article--biomass--controlled study--electrodialysis--halophyte--irrigation (agriculture)--microclimate--nonhuman--recycling--salicornia europaea--solid waste--bioremediation--dialysis--feces--goosefoot--growth, development and aging--human--methodology--salt tolerance--urine--waste management--wheat--batis maritima--salicornia--salicornia europaea--triticum aestivum--biodegradation, environmental--chenopodiaceae--dialysis--feces--humans--life support systems--salt-tolerance--triticum--urine--waste management
Аннотация: Bioregenerative life-support systems (BLSS) are studied for developing the technology for a future biological life-support system for long-term manned space missions. Ways to utilize human liquid and solid wastes to increase the closure degree of BLSS were investigated. First, urine and faeces underwent oxidation by Kudenko's physicochemical method. The products were then used for root nutrition of wheat grown by the soil-like substrate culture method. Two means of eliminating sodium chloride, introduced into the irrigation solution together with the products of urine oxidation, were investigated. The first was based on routine electrodialysis of irrigation water at the end of wheat vegetation. Dialysis eliminated about 50% of Na from the solution. This desalinization was performed for nine vegetations. The second method was new: after wheat cultivation, the irrigation solution and the solution obtained by washing the substrate containing mineral elements not absorbed by the plants were used to grow salt-tolerant Salicornia europaea L. plants (saltwort). The above-ground biomass of this plant can be used as a food, and roots can be added to the soil-like substrate. Four consecutive wheat and Salicornia vegetations were cultivated. As a result of this wheat and Salicornia cultivation process, the soil-like substrate salinization by NaCl were considerably decreased. В© 2008 Humana Press.
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15.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Somova L.A., Pechurkin N.S., Sarangova A.B., Pisman T.I., Polonsky V.I., Sadovskay G.M.
Заглавие : Small artificial ecosystems: response to variation of environmental factors (CO2 enrichment).
Место публикации : Life support & biosphere science : international journal of earth space. - 1999. - Vol. 6, Is. 3. - С. 215-220. - ISSN 10699422 (ISSN)
Ключевые слова (''Своб.индексиров.''): carbon--carbon dioxide--article--biomass--comparative study--drug effect--ecosystem--growth, development and aging--metabolism--microbiology--microclimate--photosynthesis--plant seed--pseudomonas--wheat--biomass--carbon--carbon dioxide--ecosystem--environment, controlled--photosynthesis--pseudomonas--seeds--soil microbiology--triticum
Аннотация: Response of "wheat plants--rhizospheric microorganisms--artificial soil"--a simple terrestrial ecosystem--to carbon dioxide increased in its atmosphere to 0.06% has been studied. It has been experimentally demonstrated that a simple ecosystem develops and functions different from its individual elements (components), in this case "plants-artificial soil" without microorganisms. With mineral nutrition unlimited and CO2 enrichment the system is capable of binding (involving into turnover) 40% more carbon than the system without microorganisms. With material balance as the basis, this article evaluates the contribution of a system's elements into its development, namely, the contribution of the photosynthesizing component and the contribution of microorganisms.
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16.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Somova L.A., Pechurkin N.S., Polonsky V.I., Pisman T.I., Sarangova A.B., Andre M., Sadovskaya G.M.
Заглавие : Plants-rhizospheric organisms interaction in a manmade system with and without biogenous element limitation
Место публикации : Advances in Space Research. - 1997. - Vol. 20, Is. 10. - С. 1939-1943. - ISSN 02731177 (ISSN)
Ключевые слова (''Своб.индексиров.''): nitrogen--article--bacterial count--biomass--comparative study--culture medium--growth, development and aging--metabolism--microbiology--plant leaf--plant root--plant seed--pseudomonas fluorescens--pseudomonas putida--wheat--biomass--colony count, microbial--culture media--nitrogen--plant leaves--plant roots--pseudomonas fluorescens--pseudomonas putida--seeds--triticum
Аннотация: The effect has been studied of inoculation of seeds of wheat with two species of rhizospheric microorganisms, -Pseudomonas fluorescens and Pseudomonas putida - on young plant growth with complete and with nitrogen deficit mineral nutrition. With complete mineral medium, plants grown from seeds inoculated with bacteria of Pseudomonas genus (experiment plants) have been found to have better growth over plants not inoculated with these bacteria (control plants). The experiment plants had increased transpiration and their biomass had higher organic nitrogen content. With nitrogen deficit medium, the plants inoculated with bacteria and those without them, have not revealed changes in growth. Neither case demonstrated competition of microorganisms with plants for nitrogen sources. В© 1997 COSPAR. Published by Elsevier Science Ltd.
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17.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Pis'man T.I., Somova L.A., Pechurkin N.S.
Заглавие : Mathematical model of the interaction of components in a plant-rhizospheric microorganisms system at the higher level of carbon dioxide in atmosphere
Место публикации : Biofizika. - 2002. - Vol. 47, Is. 5. - С. 920-925. - ISSN 00063029 (ISSN)
Ключевые слова (''Своб.индексиров.''): carbon dioxide--algorithm--article--biological model--biomass--ecosystem--microbiology--physiology--plant seed--pseudomonas putida--wheat--algorithms--biomass--carbon dioxide--ecosystem--models, biological--pseudomonas putida--seeds--triticum
Аннотация: A mathematical model describing the interaction of plants and rhizospheric microorganisms on complete mineral medium at a higher CO2 level in the atmosphere was constructed. The positive effect of CO2-enrichment on the system plant--rhizospheric microorganisms was shown. The effect of rhizospheric microorganisms on plant growth at normal and high level of carbon dioxide was demonstrated. It was shown that the biomass of plant in the system is smaller than the biomass of plant growing without microorganisms. It was experimentally demonstrated that a simple ecosystem wheat--Pseudomonas putida--artificial soil develops and functions differently than its individual constituents in the case of a wheat-artificial soil system. With unlimited nutrition and a higher CO2 level (0.06%), plants with roots inoculated with microorganisms have a smaller biomass than plants that were not inoculated with microorganisms.
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18.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Pisman T.I., Pugacheva I.Y., Jukova E.Y., Shevyrnogov A.P.
Заглавие : Mathematical model of seasonal agrophytocenosis productivity based on terrestrial and satellite monitoring
Место публикации : Doklady Biological Sciences. - 2009. - Vol. 428, Is. 1. - С. 467-470. - ISSN 00124966 (ISSN) , DOI 10.1134/S0012496609050226
Ключевые слова (''Своб.индексиров.''): agriculture--algorithm--article--biological model--biomass--computer simulation--crop--growth, development and aging--methodology--season--space flight--wheat--agriculture--algorithms--biomass--computer simulation--crops, agricultural--models, biological--seasons--spacecraft--triticum
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19.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Tikhomirov A.A., Ushakova S.A., Manukovsky N.S., Lisovsky G.M., Kudenko Yu.A., Kovalev V.S., Gubanov V.G., Barkhatov Yu.V., Gribovskaya I.V., Zolotukhin I.G., Gros J.B., Lasseur Ch.
Заглавие : Mass exchange in an experimental new-generation life support system model based on biological regeneration of environment
Место публикации : Advances in Space Research. - 2003. - Vol. 31, Is. 7. - С. 1711-1720. - ISSN 02731177 (ISSN) , DOI 10.1016/S0273-1177(03)80017-0
Ключевые слова (''Своб.индексиров.''): biomass--photosynthesis--plants (botany)--transpiration--mass exchange--life support systems (spacecraft)--ammonia--nitrogen--oxygen--biosphere--animal--annelid worm--article--biological model--biomass--bioremediation--evaluation--growth, development and aging--human--metabolism--microclimate--photosynthesis--pleurotus--radish--wheat--ammonia--animals--biodegradation, environmental--biomass--ecological systems, closed--evaluation studies--humans--life support systems--models, biological--nitrogen--oligochaeta--oxygen--photosynthesis--pleurotus--raphanus--triticum
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. В© 2003 COSPAR. Published by Elsevier Science Ltd. All rights reserved.
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20.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gitelson I.I., Terskov I.A., Kovrov B.G., Lisovskii G.M., Okladnikov Yu.N., Sid'ko F.Ya., Trubachev I.N., Shilenko M.P., Alekseev S.S., Pan'kova I.M., Tirranen L.S.
Заглавие : Long-term experiments on man's stay in biological life-support system
Место публикации : Advances in Space Research. - 1989. - Vol. 9, Is. 8. - С. 65-71. - ISSN 02731177 (ISSN)
Ключевые слова (''Своб.индексиров.''): agricultural products--ecosystems--food products--personnel - health--space flight - manned flight--bios-3 complex--phytotrons--spacecraft--water--air conditioning--article--biomass--crop--evaluation--growth, development and aging--human--instrumentation--light--metabolism--methodology--microclimate--photosynthesis--plant--waste management--wheat--air conditioning--biomass--crops, agricultural--ecological systems, closed--evaluation studies--humans--life support systems--light--photosynthesis--plants--triticum--waste management--water
Аннотация: We describe the experimental system having maximal possible closure of material recycling in an ecosystem, including people and plants, which was carried out in a hermetically sealed experimental complex "BIOS-3", 315 m2 in volume. The system included 2 experimentators and 3 phytotrons with plants (total sowing area of 63 m2). Plants were grown with round-the-clock lamp irradiation with 130 Wm-2 PAR intensity. The plants production was food for people. Water exchange of ecosystem, as well as gas exchange, was fully closed excluding liquids and gas samples taken for chemical analysis outside the system. The total closure of material turnover constituted 91%. Health state of the crew was estimated before, during and after the experiment. A 5-months period did not affect their health. The experiments carried out prove that the closed ecosystem of "man-plants" is a prototype of a life-support system for long-term space expeditions. В© 1989.
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