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Thermoinduction of chlorophyll fluorescence and the age-related condition of higher plant leaves / T. V. Nesterenko, V. N. Shikhov, A. A. Tikhomiro // Russian Journal of Plant Physiology. - 2001. - Vol. 48, Is. 2. - P244-251, DOI 10.1023/A:1009016520582 . - ISSN 1021-4437
Кл.слова (ненормированные):
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.

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:
Nesterenko, T.V.; Shikhov, V.N.; Tikhomiro, A.A.

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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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Fine chloroplast structure in cucumber and pea leaves developed under red light / E. N. Zavorueva [et al.] // Russian Journal of Plant Physiology. - 2000. - Vol. 47, Is. 6. - P740-747 . - ISSN 1021-4437
Кл.слова (ненормированные):
Cucumis sativus -- Pigments -- Pisum sativum -- Red light -- Ultrastructure
Аннотация: Photosynthetic activity, the content of various photosynthetic pigments, and the chloroplast ultrastructure were examined in the leaves of cucumber (Cucumis sativus L.) and pea (Pisum sativum L.) plants of different ages grown under red light (600-700 nm, 100 W/m2). In pea leaves tolerant to red-light irradiation, chloroplast ultrastructure did not essentially change. In the first true leaves of cucumber plants susceptible to red-light irradiation, we observed a considerable increase in the number and size of plastoglobules, the appearance of chloroplasts lacking grana or containing only infrequent grana, and stromal thylakoids. In the upper leaves of 22-day-old cucumber plants, the chloroplast structure was essentially similar to that of the control chloroplasts in white light, and we therefore suppose that these plants have acclimated to red light.

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:
Zavorueva, E.N.; Ushakova, S.A.; Volkova, E.K.; Tikhomirov, A.A.; Mogil'naya, O.A.; Medvedeva, S.E.

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Photosynthetic apparatus of cucumber and pea plants grown under red light with discrete or continuous spectra / E. N. Zavorueva [et al.] // Russian Journal of Plant Physiology. - 1996. - Vol. 43, Is. 2. - P191-199 . - ISSN 1021-4437
Кл.слова (ненормированные):
And thermoinduced changes in fluorescence yield -- Cucumis sativum -- Photo -- Photophosphorylation -- Pigments -- Pisum sativum
Аннотация: The effect of light sources with discrete or continuous spectra of red light (50 W/m2, 600-700 nm) on the structural and functional characteristics of chloroplasts were studied in leaves of cucumber (Cucumis sativum L.) plants, which die under strong red light, and pea (Pisum sativum L.) plants, which tolerate red light under the same conditions. Leaf condition was assessed by measuring thermo-and photoinduced changes in the chlorophyll fluorescence yield and the photochemical and photophosphorylating activities of the chloroplasts. Different responses of the pigment apparatus of pea and cucumber plants to red light with continuous or line spectra were revealed. Pea plants responded to discrete-spectrum light by changing P700 content, the ratio of antenna chlorophyll to P700, and the position of the low-temperature peak of the temperature-induced chlorophyll fluorescence yield. In cucumber plants, disturbances in the energy transfer from the short-wavelength pigments to chlorophyll a were observed. In both plants, the effects of line spectrum light on the pigment apparatus were reversible; the ratio of cyclic to noncyclic photophosphorylation, photosynthetic control, and the extent of the coupling of photosynthetic electron transport to photophosphorylation did not change compared to the control light. The need for examining the line spectra of light sources for growing plants under moderate intensities of artificial light (about 50 W/m2 of photosynthetically active radiation) is discussed.

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:
Zavorueva, E.N.; Nesterenko, T.V.; Volkova, E.K.; Tikhomirov, A.A.

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Thermoinduction of chlorophyll fluorescence and the age-related condition of higher plant leaves [Text] / T. V. Nesterenko, V. N. Shikhov, A. A. Tikhomirov // Russ. J. Plant Physiol. - 2001. - Vol. 48, Is. 2. - P. 244-251, DOI 10.1023/A:1009016520582. - Cited References: 27 . - ISSN 1021-4437

РУБ Plant Sciences

Кл.слова (ненормированные):
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.

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

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

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