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Luminous bacteria as producers of polyhydroxyalkanoates / A. Boyandin [et al.] // Macromolecular Symposia. - 2008. - Vol. 269, Is. 1. - P17-22, DOI 10.1002/masy.200850904 . - ISSN 1022-1360
Кл.слова (ненормированные):
Luminous bacteria -- Polyhydroxyalkanoates -- Polyhydroxybutyrate -- ABS resins -- Acids -- Bacteriology -- Batch cell culture -- Biological materials -- Biomass -- Biopolymers -- Biotechnology -- Cell culture -- Esters -- Hydrocarbons -- Organic compounds -- Polymers -- Renewable energy resources -- Supramolecular chemistry -- Batch cultures -- Dry cells -- Luminous bacteria -- Micro-organisms -- Photobacterium leiognathi -- Photobacterium phosphoreum -- Polyhydroxyalkanoates -- Polyhydroxybutyrate -- Polymer yields -- Vibrio fischeri -- Bioluminescence
Аннотация: The study addresses the ability of luminous bacteria of different taxa (Photobacterium leiognathi, Photobacterium phosphoreum, Vibrio harveyi, Vibrio fischeri) to synthesize polyesters of hydrocarbon acids (polyhydroxyalkanoates, PHAs) as storage macromolecules. The screened strains widely varied in their PHA productivity. Conditions for attaining high polymer yields (including two- and three-component polymers) in batch culture have been determined. The attained polymer yields reached 40-70% of dry cell biomass. The results suggest a conclusion that luminous microorganisms can be considered as producers of multi-component PHAs. Copyright В© 2008 WILEY-VCH Verlag GmbH & Co. KGaA.

Scopus
Держатели документа:
Institute of Biophysics, SB, RAS, Akademgorodok 50/ 50, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Svobodnyi Av. 79, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Boyandin, A.; Kalacheva, G.S.; Medvedeva, S.; Rodicheva, E.; Volova, T.G.

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Mathematical model of seasonal agrophytocenosis productivity based on terrestrial and satellite monitoring / T. I. Pisman [et al.] // Doklady Biological Sciences. - 2009. - Vol. 428, Is. 1. - P467-470, DOI 10.1134/S0012496609050226 . - ISSN 0012-4966
Кл.слова (ненормированные):
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

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50.50, Krasnoyarsk 660036, Russian Federation
Institute of Natural Sciences and Mathematics, Khakass State University, pr. Lenina 90, Abakan, 655000 Khakassia, Russian Federation
Institute of Space and Information Technologies, Siberian Federal University, ul. Kirenskogo 26, Krasnoyarsk 660074, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Pisman, T.I.; Pugacheva, I.Y.; Jukova, E.Y.; Shevyrnogov, A.P.

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Quasistationary areas of chlorophyll concentration in the world ocean as observed satellite data / A. P. Shevyrnogov, G. S. Vysotskaya, J. I. Gitelson // Advances in Space Research. - 1996. - Vol. 18, Is. 7. - P129-132, DOI 10.1016/0273-1177(95)00955-8 . - ISSN 0273-1177
Кл.слова (ненормированные):
chlorophyll concentration -- chlorophylls -- CZCS -- ocean chlorophyll concentration -- phytopigment dynamics -- productivity -- quasistationary areas -- remote sensing -- satellite data -- seasonal changes -- world ocean
Аннотация: To estimate the seasonal progress of the production process over the planet and its long-standing trend it is important to measure not only the spatial distributions of pigment that represent the rates of photosynthesis but also their time variability. Anthropogenic impact on natural complexes can be efficiently estimated by satellite observations of phytopigment dynamics. This study presents CZCS satellite data processed to reveal spatial inhomogeneity in the seasonal course of chlorophyll concentration in the world ocean on a global scale. Areas with quasistationary and non-stationary seasonal changes in chlorophyll concentration are revealed for the 7.5 years period of CZCS operation. Areas in the world ocean with maximum absolute and relative differences in chlorophyll concentration during different seasons were found. Results are illustrated with a chart of areas in the Atlantic Ocean discerned by dynamic parameters.

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

Доп.точки доступа:
Shevyrnogov, A.P.; Vysotskaya, G.S.; Gitelson, J.I.

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Ocean processes revealing by seasonal dynamics of surface chlorophyll concentration (by satellite data) / A. Shevyrnogov, G. Vysotskaya // Proceedings of SPIE - The International Society for Optical Engineering. - 2011. - Vol. 8175: Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2011 (21 September 2011 through 22 September 2011, Prague) Conference code: 87287. - Ст. 1, DOI 10.1117/12.897819
Кл.слова (ненормированные):
Chlorophyll concentration -- MODIS -- Ocean -- Sea surface temperature -- SeaWiFs -- Chlorophyll concentration -- MODIS -- Ocean -- Sea surface temperatures -- SeaWiFs -- Atmospheric temperature -- Band structure -- Chlorophyll -- Dynamics -- Ecology -- Hydrophilicity -- Productivity -- Remote sensing -- Satellites -- Sea ice -- Space optics -- Spatial distribution -- Surface properties -- Time series -- Time series analysis -- Oceanography
Аннотация: Continuous monitoring of phytopigment concentrations and sea surface temperature in the ocean by space-borne methods makes possible to estimate ecological condition of biocenoses in critical areas. In the papers of the authors (Shevyrnogov A.P., Vysotskaya G.S., Gitelzon J.I. 1996) existence of zones, which are quasi-stationary with similar seasonal dynamics of chlorophyll concentration at surface layer of ocean, was shown. Results were obtained on the base of processing of time series of satellite images SeaWiFS. It was shown that fronts and frontal zones coincide with dividing lines between quasi-stationary areas, especially in areas of large oceanic streams. The usage of the seasonal dynamics gives a possibility to circumvent influence of high-frequency component in investigation of dynamics of spatial distribution of surface streams. In addition, an analyses of unstable ocean productivity phenomena, stood out time series of satellite images, showed existence of areas with different types of instability in the all Global ocean. They are observed as adjacent nonstationary zones of different size, which are associated by different ways with known oceanic phenomena. It is evident that dynamics of a spatial distribution of biological productivity and sea surface temperature can give an additional knowledge of complicated picture of surface oceanic layer hydrology. В© 2011 SPIE.

Scopus
Держатели документа:
Institute of Biophysics of SB RAS, Akademgorodok, 660036, Krasnoyarsk, Russian Federation
Institute of Computational Modeling of SB RAS, Akademgorodok, 660036, Krasnoyarsk, Russian Federation
Siberian Federal University, Kyrensky st., 26, Krasnoyarsk, 660074, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

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

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Increased BLSS closure using mineralized human waste in plant cultivation on a neutral substrate / S. Ushakova [et al.] // Advances in Space Research. - 2009. - Vol. 44, Is. 8. - P971-978, DOI 10.1016/j.asr.2009.06.003 . - ISSN 0273-1177
Кл.слова (ненормированные):
Biological life support system -- Crops -- Human waste recycling -- Hydroponics -- Biological life support system -- Biological life support systems -- Biological productivity -- Control experiments -- Control plants -- Environmental conditions -- Expanded clay -- Human waste -- Human waste recycling -- Hydroponics -- In-plants -- Macro element -- Mineral element -- Neutral solution -- Nutrient solution -- Photosynthetic apparatus -- Pisum sativum -- Plant growth -- Scale potential -- Spring wheat -- Triticum aestivum -- Vegetation periods -- Water extracts -- Wheat straws -- Clay minerals -- Crops -- Minerals -- Mining -- Nutrients -- Pilot plants -- Plant life extension -- Potassium -- Productivity -- Recycling -- Solvent extraction -- Vegetation -- Water content -- Plant shutdowns
Аннотация: The purpose of this work was to study the full-scale potential use of human mineralized waste (feces and urine) as a source of mineral elements for plant cultivation in a biological life support system (BLSS). Plants that are potential candidates for a photosynthesizing link were grown on a neutral solution containing human mineralized waste. Spring wheat Triticum aestivum L., peas Pisum sativum L. Ambrosia cultivar and leaf lettuce Lactuca sativa L., Vitaminny variety, were used. The plants were grown hydroponically on expanded clay aggregates in a vegetation chamber in constant environmental conditions. During plant growth, a determined amount of human mineralized waste was added daily to the nutrient solution. The nutrient solution remained unchanged throughout the vegetation period. Estimated plant requirements for macro-elements were based on a total biological productivity of 0.04 kg day-1 m-2. As the plant requirements for potassium exceeded the potassium content of human waste, a water extract of wheat straw containing the required amount of potassium was added to the nutrient solution. The Knop's solution was used in the control experiments. The experimental and control plants showed no significant differences in state or productivity of their photosynthetic apparatus. A small decrease in total productivity of the experimental plants was observed, which might result in some reduction of O{cyrillic}2 production in a BLSS. В© 2009 COSPAR.

Scopus
Держатели документа:
Institute of Biophysics, SB, RAS, Akademgorodok, 660036 Krasnoyarsk, Russian Federation
Universite Blaise-Pascal, LGCB, Polytech, BP206, 63174 Aubiere cedex, France
TEC-MCT, ESA/Estec, 1 Keplerlaan, 2201 AZ Noordwijk, Netherlands : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Ushakova, S.; Tikhomirov, A.; Shikhov, V.; Kudenko, Yu.; Anischenko, O.; Gros, J.-B.; Lasseur, Ch.

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Tolerance of wheat and lettuce plants grown on human mineralized waste to high temperature stress / S. A. Ushakova [et al.] // Advances in Space Research. - 2013. - Vol. 51, Is. 11. - P2075-2083, DOI 10.1016/j.asr.2013.01.017 . - ISSN 0273-1177
Кл.слова (ненормированные):
Air temperature step -- BLSS -- Heat resistance -- Human waste recycling -- Lettuce -- Wheat -- Air temperature -- BLSS -- Human waste -- Lettuce -- Wheat -- Atmospheric temperature -- Electromagnetic field effects -- Electromagnetic fields -- Gas plants -- Heat resistance -- Oxygen supply -- Plants (botany) -- Productivity -- Specific heat -- Thermal stress -- Waste utilization -- Plant shutdowns
Аннотация: The main objective of a life support system for space missions is to supply a crew with food, water and oxygen, and to eliminate their wastes. The ultimate goal is to achieve the highest degree of closure of the system using controlled processes offering a high level of reliability and flexibility. Enhancement of closure of a biological life support system (BLSS) that includes plants relies on increased regeneration of plant waste, and utilization of solid and liquid human wastes. Clearly, the robustness of a BLSS subjected to stress will be substantially determined by the robustness of the plant components of the phototrophic unit. The aim of the present work was to estimate the heat resistance of two plants (wheat and lettuce) grown on human wastes. Human exometabolites mineralized by hydrogen peroxide in an electromagnetic field were used to make a nutrient solution for the plants. We looked for a possible increase in the heat tolerance of the wheat plants using changes in photosynthetically active radiation (PAR) intensity during heat stress. At age 15 days, plants were subjected to a rise in air temperature (from 23 В± 1 В°C to 44 В± 1 В°) under different PAR intensities for 4 h. The status of the photosynthetic apparatus of the plants was assessed by external 2 gas exchange and fluorescence measurements. The increased irradiance of the plants during the high temperature period demonstrated its protective action for both the photosynthetic apparatus of the leaves and subsequent plant growth and development. The productivity of the plants subjected to temperature changes at 250 W m-2 of PAR did not differ from that of controls, whereas the productivity of the plants subjected to the same heat stress but in darkness was halved. В© 2012 COSPAR. Published by Elsevier Ltd.

Scopus
Держатели документа:
SB RAS Institute of Biophysics, 660036 Akademgorodok, Krasnoyarsk, Russian Federation
Institut Pascal, GEPB, UBP, Clermont Universite, F-63000 Clermont-Ferrand, France
UB RAS, Institute of Biology of Komi Science Center, Syktyvkar, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Ushakova, S.A.; Tikhomirov, A.A.; Shikhov, V.N.; Gros, J.-B.; Golovko, T.K.; Dal'Ke, I.V.; Zakhozhii, I.G.

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A biological method of including mineralized human liquid and solid wastes into the mass exchange of bio-technical life support systems / S. A. Ushakova [et al.] // Advances in Space Research. - 2012. - Vol. 50, Is. 7. - P932-940, DOI 10.1016/j.asr.2012.05.023 . - ISSN 0273-1177
Кл.слова (ненормированные):
Bio-technical life support system -- Conveyor-grown uneven-aged communities of wheat and Salicornia -- Utilization of human wastes -- Age groups -- Biological methods -- Dry weight -- Expanded clay -- Harvest index -- Human waste -- Leafy vegetables -- Liquid wastes -- Mass exchange -- Mineral element -- Nutrient solution -- Plant communities -- Salicornia europaea -- Salt content -- Time interval -- Uneven-aged -- Water culture -- Wheat biomass -- Conveyors -- Incineration -- Irrigation -- Minerals -- Nutrients -- Plants (botany) -- Productivity -- Sodium chloride -- Waste incineration -- Waste utilization -- Liquids
Аннотация: The main obstacle to using mineralized human solid and liquid wastes as a source of mineral elements for plants cultivated in bio-technical life support systems (BLSS) is that they contain NaCl. The purpose of this study is to determine whether mineralized human wastes can be used to prepare the nutrient solution for long-duration conveyor cultivation of uneven-aged wheat and Salicornia europaea L. plant community. Human solid and liquid wastes were mineralized by the method of "wet incineration" developed by Yu. Kudenko. They served as a basis for preparing the solutions that were used for conveyor-type cultivation of wheat community represented by 5 age groups, planted with a time interval of 14 days. Wheat was cultivated hydroponically on expanded clay particles. To reduce salt content of the nutrient solution, every two weeks, after wheat was harvested, 12 L of solution was removed from the wheat irrigation tank and used for Salicornia europaea cultivation in water culture in a conveyor mode. The Salicornia community was represented by 2 age groups, planted with a time interval of 14 days. As some portion of the nutrient solution used for wheat cultivation was regularly removed, sodium concentration in the wheat irrigation solution did not exceed 400 mg/L, and mineral elements contained in the removed portion were used for Salicornia cultivation. The experiment lasted 4 months. The total wheat biomass productivity averaged 30.1 gВ·m -2В·day -1, and the harvest index amounted to 36.8%. The average productivity of Salicornia edible biomass on a dry weight basis was 39.3 gВ·m -2В·day -1, and its aboveground mass contained at least 20% of NaCl. Thus, the proposed technology of cultivation of wheat and halophyte plant community enables using mineralized human wastes as a basis for preparing nutrient solutions and including NaCl in the mass exchange of the BLSS; moreover, humans are supplied with additional amounts of leafy vegetables. В© 2012 COSPAR. Published by Elsevier Ltd. All rights reserved.

Scopus
Держатели документа:
Institute of Biophysics SB RAS, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Siberian State Technological University, 82, Mir Avenue, Krasnoyarsk 660049, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Ushakova, S.A.; Tikhomirov, A.A.; Tikhomirova, N.A.; Kudenko, Y.A.; Litovka, Y.A.; Anishchenko, O.V.

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Ontogenetic Approach to Assessment of Chufa Response to Culture Conditions by the Method of Chlorophyll Fluorescence Induction / V. N. Shikhov [et al.] // Russian Journal of Plant Physiology. - 2011. - Vol. 58, Is. 2. - P359-363, DOI 10.1134/S1021443711020191 . - ISSN 1021-4437
Кл.слова (ненормированные):
chlorophyll fluorescence induction -- Cyperus esculentus -- mineral nutrition -- ontogeny -- PAR irradiance -- Cyperus -- Cyperus esculentus
Аннотация: Application of earlier proposed ontogenetic approach to assessment of chufa (Cyperus esculentus L.) response to artificial-light culture growing conditions differing in illuminance and type of mineral nutrition is described. It was shown that, on biological soil-like substrate, plant productivity did not increase as a result of PAR level rising, and life time of chufa leaves was reduced to 11 days as compared with 18 days on the neutral substrate. Changes in the parameters of chlorophyll fluorescence induction (Fv/Fm, Yield = (Fm - Ft)/Fm, and ETR = 0.5 ? 0.84 ? Yield ? PAR) analyzed on the basis of ontogenetic approach show that it can disclose nonoptimal culture conditions. В© 2011 Pleiades Publishing, Ltd.

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

Доп.точки доступа:
Shikhov, V.N.; Velichko, V.V.; Nesterenko, T.V.; Tikhomirov, A.A.

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Use of human wastes oxidized to different degrees in cultivation of higher plants on the soil-like substrate intended for closed ecosystems / A. A. Tikhomirov [et al.] // Advances in Space Research. - 2010. - Vol. 46, Is. 6. - P744-750, DOI 10.1016/j.asr.2010.02.024 . - ISSN 0273-1177
Кл.слова (ненормированные):
Life support systems -- Microflora -- Mineralized human wastes -- Phototrophic unit -- Wet incineration -- Alternating electromagnetic field -- Bioregenerative life support systems -- Degree of oxidations -- Denitrifying microorganisms -- Growth and development -- Higher plants -- Human waste -- Life support systems -- Mass exchange -- Microbiotas -- Microflora -- Microscopic fungi -- Mineralized human wastes -- Nutrient solution -- Oxidation level -- Phytopathogenic bacteria -- Plant productivity -- Soil-like substrate -- Wheat plants -- Biomolecules -- Electromagnetic fields -- Irrigation -- Magnetic field effects -- Metabolism -- Metabolites -- Oxidation -- Plants (botany) -- Soils -- Solvent extraction -- Wastes -- Waste incineration
Аннотация: To close mass exchange loops in bioregenerative life support systems more efficiently, researchers of the Institute of Biophysics SB RAS (Krasnoyarsk, Russia) have developed a procedure of wet combustion of human wastes and inedible parts of plants using H2O2 in alternating electromagnetic field. Human wastes pretreated in this way can be used as nutrient solutions to grow plants in the phototrophic unit of the LSS. The purpose of this study was to explore the possibilities of using human wastes oxidized to different degrees to grow plants cultivated on the soil-like substrate (SLS). The treated human wastes were analyzed to test their sterility. Then we investigated the effects produced by human wastes oxidized to different degrees on growth and development of wheat plants and on the composition of microflora in the SLS. The irrigation solution contained water, substances extracted from the substrate, and certain amounts of the mineralized human wastes. The experiments showed that the human wastes oxidized using reduced amounts of 30% H2O2: 1 ml/g of feces and 0.25 ml/ml of urine were still sterile. The experiments with wheat plants grown on the SLS and irrigated by the solution containing treated human wastes in the amount simulating 1/6 of the daily diet of a human showed that the degree of oxidation of human wastes did not significantly affect plant productivity. On the other hand, the composition of the microbiota of irrigation solutions was affected by the oxidation level of the added metabolites. In the solutions supplemented with partially oxidized metabolites yeast-like microscopic fungi were 20 times more abundant than in the solutions containing fully oxidized metabolites. Moreover, in the solutions containing incompletely oxidized human wastes the amounts of phytopathogenic bacteria and denitrifying microorganisms were larger. Thus, insufficiently oxidized sterile human wastes added to the irrigation solutions significantly affect the composition of the microbiological component of these solutions, which can ultimately unbalance the system as a whole. В© 2010 COSPAR. Published by Elsevier Ltd. All rights reserved.

Scopus
Держатели документа:
Institute of Biophysics SB RAS, Akademgorodok, 50/50, Krasnoyarsk 660036, Russian Federation
Universite Blaise Pascal, 24 avenue des Landais, 63174 Aubiere cedex, France
ESA/ESTEC, Keplerlaan 1, 2201 AZ Noordwijk, Netherlands : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Tikhomirov, A.A.; Kudenko, Y.A.; Ushakova, S.A.; Tirranen, L.S.; Gribovskaya, I.A.; Gros, J.-B.; Lasseur, C.

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10.

Tolerance of plants grown on human mineralized waste to changes in air temperature / A. A. Tikhomirov [et al.] // International Astronautical Federation - 59th International Astronautical Congress 2008, IAC 2008. - 2008. - Vol. 1: 59th International Astronautical Congress 2008, IAC 2008 (29 September 2008 through 3 October 2008, Glasgow) Conference code: 79748. - P311-320
Кл.слова (ненормированные):
Air temperature -- Alternating electromagnetic field -- Biological life support systems -- Closedness -- Controlled process -- Fluorescence measurements -- Gas exchange -- Heat stress -- High temperature -- Human waste -- Nutrient solution -- Old plants -- Photosynthetic apparatus -- Photosynthetically active radiation -- Plant components -- Plant growth -- Plant wastes -- Protective action -- Reproductive organs -- Temperature changes -- Temperature conditions -- Atmospheric temperature -- Electromagnetic field effects -- Electromagnetic fields -- Gas plants -- Heat resistance -- Hydrogen peroxide -- Oxygen supply -- Plant life extension -- Productivity -- Specific heat -- Thermal stress -- Waste utilization -- Plant shutdowns
Аннотация: The main objective of an LSS is to supply a crew with food, water and oxygen, and to eliminate its waste. The ultimate goal is to achieve the highest degree of closure of the system using controlled processes offering a high level of reliability and flexibility. Enhancement of closedness of biological life support systems (BLSS) including plants relies on increased regeneration of gas, water and plant waste, and utilization of solid and liquid human wastes. Clearly, the robustness of an LSS subjected to stress will be substantially determined by the robustness of the plant components of the phototrophic unit. The aim of the present work was to estimate the heat resistance of plants grown on human wastes. Human exometabolites mineralized by hydrogen peroxide in an alternating electromagnetic field were used to make a nutrient solution for the plants. We looked for a possible increase in the heat resistance of the plants using changes in photosynthetically active radiation (PAR) intensity during heat stress. At ages 15 and 25 days, plants were subjected to a rise in air temperature (from 22-24В°C to 44В°C) under different PAR intensities for 4 hours. The status of the photosynthetic apparatus of the plants was assessed by external CO2 gas exchange and fluorescence measurements. The increased irradiance of the plants during the high temperature period demonstrated its protective action for both the photosynthetic apparatus of the leaves and subsequent plant growth and development. The productivity of the plants subjected to temperature changes at 250 W/m2 of PAR did not differ from that of controls, whereas the productivity of the plants subjected to the same heat stress but in darkness was halved. The heat resistance of the reproductive organs of 25-day-old plants was significantly lower than that of 15-day-old plants subjected to similar light and temperature conditions.

Scopus
Держатели документа:
SB RAS Institute of Biophysics, 660036, Akademgorodok, Krasnoyarsk, Russian Federation
LGCB, Universite Blaise Pascal, Clermont-Ferrand, France
Institute of Biology Komi SC of UrB RAS, Syktyvkar, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Tikhomirov, A.A.; Ushakova, S.A.; Shikhov, V.N.; Gros, J.-B.; Golovko, T.K.; Dal'Ke, I.V.; Zakhozhii, I.G.

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11.

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

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

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

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12.

Estimation of the stability of the photosynthetic unit in the bioregenerative life support system with plant wastes included in mass exchange / A. A. Tikhomirov [et al.] // Acta Astronautica. - 2008. - Vol. 63, Is. 7-10. - P1111-1118, DOI 10.1016/j.actaastro.2007.12.025 . - ISSN 0094-5765
Кл.слова (ненормированные):
BLSS -- Mass exchange -- Plant wastes -- Agricultural products -- Air pollution -- Biological materials -- Biomass -- Environmental engineering -- Estimation -- Experiments -- Human engineering -- Incineration -- Renewable energy resources -- Space research -- Substrates -- System stability -- Bioregenerative -- Life-support systems -- Mass exchanges -- Plant biomass -- Plant productivity -- Plant wastes -- Radish plants -- Significant reduction -- Soil like substrates -- Wheat straws -- Waste incineration
Аннотация: The purpose of this study is to estimate the possible effect produced on plant productivity by inedible plant biomass added to soil-like substrate (SLS). Results of the experiments with radish plants grown on the SLS with inedible biomass of carrot and beet plants added in the amounts roughly equal to their yields harvested from the same area showed a significant reduction in productivity of radish plants. The yield of radish plants grown on the SLS with added radish tops was almost the same as the yield of the radish grown on the neutral substrate. Experiments with addition of dry wheat straw to the SLS and growing of wheat and radish plants on that substrate also showed that the productivity of the plants grown in that way was decreased. Attempts to negate the adverse effect of plant wastes proved that the most effective way was to mineralize the wastes using the technique of "wet incineration". В© 2008 Elsevier Ltd. All rights reserved.

Scopus
Держатели документа:
Institute of Biophysics Russian Academy of Sciences, Siberian Branch, Akademgorodok, 660036 Krasnoyarsk, Russian Federation
Environmental Control and Life Support Section, ESA-ESTEC, Postbus 299, 2200 AG Noordwijk, Netherlands
Institute of Biology Komi SC, Ural Branch Russian Academy of Sciences, Kommunisticheskaya Street, 28, 167982 Siktivkar, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Tikhomirov, A.A.; Ushakova, S.A.; Velichko, V.V.; Zolotukhin, I.G.; Shklavtsova, E.S.; Lasseur, C.; Golovko, T.K.

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13.

Effect of increased CO2 concentrations on gas exchange and productivity of cultivated vegetables contributing to the phototrophic component of biological regeneration life-support systems / A. A. Tikhomirov, V. V. Velichko, S. A. Ushakova // Doklady Biological Sciences. - 2007. - Vol. 416, Is. 1-6. - P379-381, DOI 10.1134/S001249660705016X . - ISSN 0012-4966
Кл.слова (ненормированные):
carbon dioxide -- article -- beet -- biomass -- carrot -- chemistry -- light -- metabolism -- photosynthesis -- phototropism -- plant -- plant physiology -- radish -- time -- vegetable -- Beta vulgaris -- Biomass -- Carbon Dioxide -- Daucus carota -- Light -- Photosynthesis -- Phototropism -- Plant Physiology -- Plants -- Raphanus -- Time Factors -- Vegetables

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

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

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14.

Testing soil-like substrate for growing plants in bioregenerative life support systems / J. B. Gros [et al.] // Advances in Space Research. - 2005. - Vol. 36, Is. 7. - P1312-1318, DOI 10.1016/j.asr.2005.05.079 . - ISSN 0273-1177
Кл.слова (ненормированные):
Life support system -- Matter recycling -- Plants -- Soil-like substrate -- Biodiversity -- Correlation methods -- Growth kinetics -- Hormones -- Plants (botany) -- Recycling -- Soils -- Bioregeneration -- Life support system -- Matter recycling -- Soil-like substrate -- Space research
Аннотация: We studied soil-like substrate (SLS) as a potential candidate for plant cultivation in bioregenerative life support systems (BLSS). The SLS was obtained by successive conversion of wheat straw by oyster mushrooms and worms. Mature SLS contained 9.5% humic acids and 4.9% fulvic acids. First, it was shown that wheat, bean and cucumber yields as well as radish yields when cultivated on mature SLS were comparable to yields obtained on a neutral substrate (expanded clay aggregate) under hydroponics. Second, the possibility of increasing wheat and radish yields on the SLS was assessed at three levels of light intensity: 690, 920 and 1150 ?mol m-2 s-1 of photosynthetically active radiation (PAR). The highest wheat yield was obtained at 920 ?mol m-2 s-1, while radish yield increased steadily with increasing light intensity. Third, long-term SLS fertility was tested in a BLSS model with mineral and organic matter recycling. Eight cycles of wheat and 13 cycles of radish cultivation were carried out on the SLS in the experimental system. Correlation coefficients between SLS nitrogen content and total wheat biomass and grain yield were 0.92 and 0.97, respectively, and correlation coefficients between nitrogen content and total radish biomass and edible root yield were 0.88 and 0.87, respectively. Changes in hormone content (auxins, gibberellins, cytokinins and abscisic acid) in the SLS during matter recycling did not reduce plant productivity. Quantitative and species compositions of the SLS and irrigation water microflora were also investigated. Microbial community analysis of the SLS showed bacteria from Bacillus, Pseudomonas, Proteus, Nocardia, Mycobacterium, Arthrobacter and Enterobacter genera, and fungi from Trichoderma, Penicillium, Fusarium, Aspergillus, Mucor, Botrytis, and Cladosporium genera. В© 2005 COSPAR. Published by Elsevier Ltd. All rights reserved.

Scopus
Держатели документа:
LGCB, Universite B. Pascal, CUST, BP206, 63174 Aubiere cedex, France
Environmental Control and Life Support Section, ESA-Estec, Postbus 299, 2200 AG, Noordwijk, Netherlands
Institute of Biophysics (Russian Academy of Sciences, Siberian Branch), Academgorodok, Krasnoyarsk 660036, Russian Federation
Department of Plant Physiology and Biotechnology, Tomsk State University, Lenin av. 36, Tomsk 634050, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

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

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15.

Influence of high concentrations of mineral salts on production process and NaCl accumulation by Salicornia europaea plants as a constituent of the LSS phototroph link / N. A. Tikhomirova [et al.] // Advances in Space Research. - 2005. - Vol. 35, Is. 9 SPEC. ISS. - P1589-1593, DOI 10.1016/j.asr.2005.01.055 . - ISSN 0273-1177
Кл.слова (ненормированные):
BLSS -- Intensity of PAR -- Mineral nutrition -- Productivity -- Salicornia europaea -- Biomass -- Concentration (process) -- Nitrogen -- Nutrition -- Photosynthesis -- Productivity -- Sodium chloride -- Bioregenerative life support systems (BLSS) -- Intensity of PAR -- Mineral nutrition -- Salicornia europaea -- Plants (botany) -- calcium -- magnesium -- nitrogen -- phosphorus -- potassium -- sodium chloride -- sulfur -- urea -- biomass -- conference paper -- culture medium -- dose response -- drug effect -- goosefoot -- growth, development and aging -- human -- light -- metabolism -- microclimate -- radiation exposure -- urine -- Biomass -- Calcium -- Chenopodiaceae -- Culture Media -- Dose-Response Relationship, Drug -- Ecological Systems, Closed -- Humans -- Life Support Systems -- Light -- Magnesium -- Nitrogen -- Phosphorus -- Potassium -- Sodium Chloride -- Sulfur -- Urea -- Urine
Аннотация: Use of halophytes (salt-tolerant vegetation), in a particular vegetable Salicornia europaea plants which are capable of utilizing NaCl in rather high concentrations, is one of possible means of NaCl incorporation into mass exchange of bioregenerative life support systems. In preliminary experiments it was shown that S. europaea plants, basically, could grow on urine pretreated with physicochemical processing and urease-enzyme decomposing of urea with the subsequent ammonia distillation. But at the same time inhibition of the growth process of the plants was observed. The purpose of the given work was to find out the influence of excessive quantities of some mineral elements contained in products of physicochemical processing of urine on the production process and NaCl accumulation by S. europaea plants. As the content of mineral salts in the human liquid wastes (urine) changed within certain limits, two variants of experimental solutions were examined. In the first variant, the concentration of mineral salts was equivalent to the minimum salt content in the urine and was: K - 1.5 g/l, P - 0.5 g/l, S - 0.5 g/l, Mg - 0.07 g/l, Ca - 0.2 g/l. In the second experimental variant, the content of mineral salts corresponded to the maximum salt content in urine and was the following: K - 3.0 g/l, P - 0.7 g/l, S - 1.2 g/l, Mg - 0.2 g/l, Ca - 0.97 g/l. As the control, the Tokarev nutrient solution containing nitrogen in the form of a urea, and the Knop nutrient solution with nitrogen in the nitrate form were used. N quantity in all four variants made up 177 mg/l. Air temperature was 24 В°C, illumination was continuous. Light intensity was 690 ?mol/m2s of photosynthetically active radiation. NaCl concentration in solutions was 1%. Our researches showed that the dry aboveground biomass of an average plant of the first variant practically did not differ from the control and totaled 11 g. In the second variant, S. europaea productivity decreased and the dry aboveground biomass of an average plant totaled 8 g. The increase of K quantity in the experimental solutions resulted in an elevated content of the element in the plants. The increase of K uptake in the second experimental variant was accompanied by a 30-50% decrease of Na content in comparison with the other variants. Comparative Na content in the other variants was practically identical. N, Mg and P content in the control and experimental variants was also practically identical. The increase of S quantity in the second experimental variant also increased S uptake by the plants. But Ca quantity, accumulated in aboveground plants biomass in the experimental variants was lower than in the control. NaCl uptake by plants, depending on the concentration of mineral salts in the experimental solutions, ranged from 8 g (maximum salt content) up to 15 g (minimum salt content) on a plant growth area that totaled 0.032 m2. Thus, high concentrations of mineral salts simulating the content of mineral salts contained in urine did not result in a significant decrease of S. europaea productivity. The present work also considers the influence of higher light intensity concentrations on productivity and NaCl accumulation by S. europaea plants grown on experimental solutions with high salt content. В© 2005 COSPAR. Published by Elsevier Ltd. All rights reserved.

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

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

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16.

The possible way of introducing mineral elements of liquid human wastes into the material cycle in biological life support systems / A. A. Tikhomirov [et al.] // International Astronautical Federation - 55th International Astronautical Congress 2004. - 2004. - Vol. 3: International Astronautical Federation - 55th International Astronautical Congress 2004 (4 October 2004 through 8 October 2004, Vancouver) Conference code: 69653. - P1442-1448
Кл.слова (ненормированные):
Biomass -- Body fluids -- Hydrogen peroxide -- Life support systems (spacecraft) -- Solid wastes -- Biological life support systems -- Intrasystem material cycle -- Liquid human wastes -- Plant biomass -- Waste management
Аннотация: Along with the atmosphere, water and food regeneration processes in biological life support systems it is important to provide units and links responsible for utilization of unused plant biomass, human wastes and returning, if possible, the most of wastes into the intrasystem material cycle. The experience on construction of biological life support systems (BLSS) gained by the Institute of Biophysics SB RAS (Krasnoyarsk, Russia) allows us to suggest constructing an integrated biological-physical-chemical life support system with the biological unit predominating. It is possibly to partially mineralize urine and solid wastes by "wet incineration" by hydrogen peroxide in electric field. We suggest decomposing urea by a urease-enzymatic method using soybean or canavalia flour containing sufficient amount of urease. Consumption of 1.5 g of flour for decomposition of urea in daily urine and the possibility of producing flour from soybeans and canavalia grown inside the system make this method of urea decomposition rather prospective. Further ammonia distillation using the nitrification unit and evaporation of solution would make possible to return nitrogen and water back into the intrasystem cycle. Probably, in long-duration space expeditions the utilization of urine would be confined only by extraction of nitrogen and water from urine with further removal of dry residue to the stock, as the problem of returning sodium chloride into the intrasystem cycling has not been solved yet. As all biogenic elements contained in urine (except nitrogen) get lost at that, the solution of the problem with introducing NaCl and mineral elements into the cycle with the help of halophyte plants Salicornia europaea are of sufficient interest. This work presents the experimental results of growing Salicornia europaea on model solutions containing biogenic elements in the amounts equivalent to their content in urine and on urine, which undergone physically-chemically treatment by peroxide and ammonia distillation after urease-enzymatic decomposition. Taking into consideration that the mineral elements content in urine can vary, 2 variants of model solutions were used. In the first variant the content of P was 8-fold, S - 7-fold, K - 8-fold higher than in Knop's solution; the content of Ca and Mg almost complied with that in Knop's solution. In the variant P was 12-fold, S - 17-fold, K - 17-fold, Ca - 6-fold and Mg was 8-fold higher than in Knop's solution. The content of N and NaCl in both variants was the same and constituted 0.18 g/l and 10 g/l respectively. The results of carried experiments showed that growing plants on urine treated in the above-mentioned way is possible; though the productivity of plants would be less than on model solutions. The reasons of plant productivity drop and the possible ways of their removal have been discussed.

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

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

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17.

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

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

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

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18.

Effect of Growing Conditions on Wheat Hormonal Status and Productivity in Experimental Ecological System / R. A. Karnachuk [et al.] // Russian Journal of Plant Physiology. - 2003. - Vol. 50, Is. 2. - P237-242, DOI 10.1023/A:1022933516663 . - ISSN 1021-4437
Кл.слова (ненормированные):
CO2 -- Illuminance -- Phytohormones -- Productivity -- Triticum aestivum -- Triticum -- Triticum aestivum
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, CO 2 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 GA9 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 GA9, and a rise in the productivity of wheat, line 232. The concentration of CO 2 was shown to be a major parameter that determined HI in the experimental ecological system.

Scopus
Держатели документа:
Dept. of Plant Physiol. and Biotech., Tomsk State University, pr. Lenina 36, Tomsk, 634050, Russian Federation
Institute of Biophysics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Environ. Contr. Life Support Sect., ESA, Estec Noorwijk, Netherlands
LGCB, Universite B. Pascal, Clermont-Ferrand, France : 660036, Красноярск, Академгородок, д. 50, стр. 50

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

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19.

The levels of organization of the photosynthetic apparatus and the control of production processes in phytocenoses under artificial-light culture / A. A. Tikhomirov, G. M. Lisovskii // Russian Journal of Plant Physiology. - 2001. - Vol. 48, Is. 3. - P395-399, DOI 10.1023/A:1016682904411 . - ISSN 1021-4437
Кл.слова (ненормированные):
Artificial-light culture -- Photosynthetic apparatus -- Phytocenosis -- Productivity -- Embryophyta
Аннотация: The processes limiting the production in higher plant phytocenoses under an artificial-light culture are analyzed in relation to the multilevel organization of the photosynthetic apparatus (PA). The authors consider the feasibility of overcoming these limitations by optimizing the physical parameters of irradiation (the structure of the light spectrum, the rate, and the ratio of radiation fluxes in photosynthetically active radiation (PAR) and infrared (IR) regions) at the molecular, leaf, plant, and cenotic levels of PA organization. To illustrate this approach, the authors used a complex experiment in an artificial ecosystem to evaluate the efficiency of the light control of production processes in multispecies phytocenoses by alleviating or removing the factors that limit plant production at the various levels of PA organization. An artificial-light culture is seen as an instrument for solving several problems of theoretical and applied plant physiology and related disciplines in the future.

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

Доп.точки доступа:
Tikhomirov, A.A.; Lisovskii, G.M.

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20.

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

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

Доп.точки доступа:
Tikhomirov, A.A.

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