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Production characteristics of the "higher plants-soil-like substrate" system as an element of the bioregenerative life support system / V. V. Velichko [et al.] // Advances in Space Research. - 2013. - Vol. 51, Is. 1. - P115-123, DOI 10.1016/j.asr.2012.08.003 . - ISSN 0273-1177
Кл.слова (ненормированные):
Biological-technical life support system -- Soil-like substrate -- Utilization of plant wastes -- Age groups -- Bioregenerative life support systems -- Cultivated crops -- Cyperus esculentus -- Growth chamber -- Higher plants -- Mineral element -- Nitrogen content -- Nutrient solution -- Plant wastes -- Raphanus sativus -- Root zone -- Soil-like substrate -- Study materials -- Biomass -- Carbon dioxide -- Harvesting -- Minerals -- Plants (botany) -- Soils -- Substrates -- Waste utilization -- Ecology
Аннотация: The study addresses the possibility of long-duration operation of a higher plant conveyor, using a soil-like substrate (SLS) as the root zone. Chufa (Cyperus esculentus L.), radish (Raphanus sativus L.), and lettuce (Lactuca sativa L.) were used as study material. A chufa community consisting of 4 age groups and radish and lettuce communities consisting of 2 age groups were irrigated with a nutrient solution, which contained mineral elements extracted from the SLS. After each harvest, inedible biomass of the harvested plants and inedible biomasses of wheat and saltwort were added to the SLS. The amounts of the inedible biomasses of wheat and saltwort to be added to the SLS were determined based on the nitrogen content of the edible mass of harvested plants. CO2 concentration in the growth chamber was maintained within the range of 1100-1700 ppm. The results of the study show that higher plants can be grown quite successfully using the proposed process of plant waste utilization in the SLS. The addition of chufa inedible biomass to the SLS resulted in species-specific inhibition of growth of both cultivated crops and microorganisms in the "higher plants - SLS" system. There were certain differences between the amounts of some mineral elements removed from the SLS with the harvested edible biomass and those added to it with the inedible biomasses of wheat and saltwort. В© 2012 COSPAR. Published by Elsevier Ltd. All rights reserved.

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

Доп.точки доступа:
Velichko, V.V.; Tikhomirov, A.A.; Ushakova, S.A.; Tikhomirova, N.A.; Shihov, V.N.; Tirranen, L.S.; Gribovskaya, I.A.

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Biological and physicochemical methods for utilization of plant wastes and human exometabolites for increasing internal cycling and closure of life support systems / I. G. Zolotukhin [et al.] // Advances in Space Research. - 2005. - Vol. 35, Is. 9 SPEC. ISS. - P1559-1562, DOI 10.1016/j.asr.2005.01.006 . - ISSN 0273-1177
Кл.слова (ненормированные):
BLSS -- Desalting -- Higher plants -- NaCl utilization -- SLS -- Biomass -- Crops -- Decomposition -- Electrodialysis -- Harvesting -- Metabolites -- Soils -- Wastes -- BLSS -- Higher plants -- NaCl utilization -- SLS -- Plants (botany) -- Biomass -- Decay -- Deionization -- Harvesting -- Plants -- Soil -- Wastes -- Wheat -- sodium chloride -- article -- biomass -- bioremediation -- culture medium -- feces -- growth, development and aging -- human -- metabolism -- methodology -- microbiology -- microclimate -- urine -- waste management -- wheat -- Biodegradation, Environmental -- Biomass -- Culture Media -- Ecological Systems, Closed -- Feces -- Humans -- Life Support Systems -- Sodium Chloride -- Soil Microbiology -- Triticum -- Urine -- Waste Management
Аннотация: Wheat was cultivated on soil-like substrate (SLS) produced by the action of worms and microflora from the inedible biomass of wheat. After the growth of the wheat crop, the inedible biomass was restored in SLS and exposed to decomposition ("biological" combustion) and its mineral compounds were assimilated by plants. Grain was returned to the SLS in the amount equivalent to human solid waste produced by consumption of the grain. Human wastes (urine and feces) after physicochemical processing turned into mineralized form (mineralized urine and mineralized feces) and entered the plants' nutrient solution amounts equal to average daily production. Periodically (once every 60-70 days) the nutrient solution was partly (up to 50%) desalinated by electrodialysis. Due to this NaCl concentration in the nutrient solution was sustained at a fixed level of about 0.26%. The salt concentrate obtained could be used in the human nutrition through NaCl extraction and the residuary elements were returned through the mineralized human liquid wastes into matter turnover. The control wheat cultivation was carried out on peat with use of the Knop nutrient solution. Serial cultivation of several wheat vegetations within 280 days was conducted during the experiment. Grain output varied and yield/harvest depended, in large part, upon the amount of inedible biomass returned to SLS and the speed of its decomposition. After achieving a stationary regime, (when the quantity of wheat inedible biomass utilized during vegetation in SLS is equal to the quantity of biomass introduced into SLS before vegetation) grain harvest in comparison with the control was at most 30% less, and in some cases was comparable to the control harvest values. The investigations carried out on the wheat example demonstrated in principle the possibility of long-term functioning of the LSS photosynthesizing link based on optimizations of biological and physicochemical methods of utilization of the human and plants wastes. The possibilities for the use of these technologies for the creation integrated biological-physicochemical LSS with high closure degree of internal matter turnover are discussed in this paper. В© 2005 Published by Elsevier Ltd on behalf of COSPAR.

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

Доп.точки доступа:
Zolotukhin, I.G.; Tikhomirov, A.A.; Kudenko, Yu.A.; Gribovskaya, I.V.

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Using DCMU-fluorescence method for the identification of dominant phytoplankton groups [Text] / N. A. Gaevsky [et al.] // J. Appl. Phycol. - 2005. - Vol. 17, Is. 6. - P. 483-494, DOI 10.1007/s10811-005-2903-x. - Cited References: 28 . - ISSN 0921-8971

РУБ Biotechnology & Applied Microbiology + Marine & Freshwater Biology
Рубрики:
IN-VIVO
   CHLOROPHYLL FLUORESCENCE
   FLUOROMETRIC METHOD
   SITU
   PHOTOSYNTHESIS
   CYANOBACTERIA
   ALGAE
   EVOLUTION
   CULTURES
   LAKES
Кл.слова (ненормированные):
algae -- chlorophyll -- fluorescence -- vizualization
Аннотация: For the identification of ecologically significant dominant groups of phytoplanktonic algae a polychromatic DCMU-induced fluorescence method is recommended. A special fluorometer equipped with a system of replaceable filters is used to differentiate three regions of the spectrum (410 +/- 20, 510 +/- 20 and 540 +/- 10 nm) that can excite the basic light-harvesting pigments. Total and differential (for every algal taxon studied) chlorophyll a calculated from the fluorescence signals is in good agreement with biomass estimates from direct cell counts for several different trophic types of aquatic systems. This is made possible by the vizualization of the ratios of fluorescence signal values in their own coordinates: first, to decide whether it is necessary to correct linear equations in order to eliminate negative solutions; second, to determine the possibility of nulling the negative solution if a point is situated close to a side of the triangle; and third, to reduce the number of linear algebraic equations to two if the points are situated along one of the triangle sides or to one if the points are gathered at the apex. The polychromatic DCMU-induced fluorescence method can be used for monitoring natural phytoplankton populations to detect changes in their taxonomic structure.

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Держатели документа:
Krasnoyarsk State Univ, Dept Biol, Krasnoyarsk, Russia
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Gaevsky, N.A.; Kolmakov, V.I.; Anishchenko, O.V.; Gorbaneva, T.B.

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Influence of NaCl on Productivity and Fluorescence Parameters of Nasturtium officinale R. Br. and Its Relevance to Artificial Closed Ecosystems / A. M. Pavlova, N. A. Gaevskii, O. V. Anishchenko [et al.] // Russ. J. Plant Physiol. - 2021. - Vol. 68, Is. 6. - P1173-1185, DOI 10.1134/S1021443721050137. - Cited References:27. - This work was supported by the fundamental research program of the Russian Academy of Sciences for 2013-2020, project no. 56.1.4 Sustainability of Higher Plant Cenoses Grown on Nutrient Media with Mineralized Organic Waste in Closed Human-Inhabited Ecological Systems. . - ISSN 1021-4437. - ISSN 1608-3407

РУБ Plant Sciences
Рубрики:
CHLOROPHYLL FLUORESCENCE
   SALT STRESS
   TOLERANCE
   PHOTOSYNTHESIS
Кл.слова (ненормированные):
Nasturtium officinale -- glycophyte -- salt tolerance -- photosynthetic -- apparatus -- closed ecosystems
Аннотация: Productivity values, sodium accumulation in aboveground biomass, and photosynthetic indices of watercress (Nasturtium officinale) leaves were investigated under conditions resembling artificial closed ecological systems (CES). The seedlings were grown on nutrient media with various NaCl concentrations (0.7, 1.4, and 1.8 g/L) for 7, 14, and 19 days after transferring them to saline solutions. The productivity of plants on the seventh day of their growth on saline media did not differ from that of control plants. The decrease in plant productivity was noted in all the treatments starting from the 14th day after transferring the plants to saline solutions. When NaCl concentration in the nutrient solution was raised from 0.7 to 1.8 g/L, a significant increase in relative Na+ content in plant tissues was observed, regardless of the duration of NaCl treatment. A substantial decrease in chlorophyll (a + b) to carotenoid content ratio was noted on the seventh and 14th days in plants grown at 1.8 g/L NaCl. In plants treated for 7 days with 0.7 and 1.4 g/L NaCl, the content of chlorophylls a and b and carotenoids was found to increase, which indicates the tolerance of N. officinale to CES conditions. The relative content of chlorophylls a and b in the light-harvesting chlorophyll (a + b) complex was independent of the extent of salinity. The maximum quantum yield of photosystem II reaction in N. officinale plants had typically high values (Y(II)(max) of 0.755 +/- 0.007). Using the Imaging Maxi version of the pulse amplitude-modulated (PAM) fluorometer, it was found that light curves for the effective quantum yield of photochemical and nonphotochemical fluorescence quenching (Y(II) and Y(NPQ), respectively) differed appreciably between the salt-treated and untreated plants in the case of long-term cultivation (19 days) at 0.7 and 1.4 g/L NaCl. The treatment with 1.8 g/L NaCl for the period from 14 to 19 days had no effect on light curves of Y(II) and Y(NPQ). It is argued that N. officinale can be used as a source of NaCl for humans under CES conditions.

WOS
Держатели документа:
Siberian Fed Univ, Krasnoyarsk, Russia.
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk, Russia.
Reshetnev Siberian State Univ Sci & Technol, Krasnoyarsk, Russia.

Доп.точки доступа:
Pavlova, A. M.; Gaevskii, N. A.; Anishchenko, O. V.; Tikhomirova, N. A.; Tikhomirov, A. A.; fundamental research program of the Russian Academy of SciencesRussian Academy of Sciences [56.1.4]

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