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Accumulation of 60Co, 90Sr, 137Cs, 238U and transuranic elements by berry shrubs in forest ecosystems of the Yenisei river basin / D. Dementyev, A. Bolsunovsky // Radioprotection. - 2011. - Vol. 46, Is. 6 SUPPL. - S25-S28, DOI 10.1051/radiopro/20116476s . - ISSN 0033-8451
Аннотация: The study investigates accumulation of radionuclides in 5 species of berry shrubs in forests of the Yenisei River basin (the Krasnoyarskii Krai, Russia). Activity concentrations of 60Co, 90Sr, 137Cs, 238U and transuranic elements in aboveground organs of the shrubs have been determined and their transfer factors calculated. Analysis of the calculated TFs shows that shrubs concentrate 90Sr more effectively than other study elements (TF = 0.25-1.9). The highest concentration of 137Cs is recorded in the berries and leaves of Ribes nigrumand Rubus idaeus. For these species, the range of 137Cs TFs (0.006-0.027) overlaps with the range of 238U TFs (0.004-0.018). For the aboveground parts of Ribes nigrum, TFs for transuranic radionuclides (0.01-0.056) are similar to or higher than the TFs for 238U and 137Cs. В© 2011 EDP Sciences.

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

Доп.точки доступа:
Dementyev, D.; Bolsunovsky, A.

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Actinides and other radionuclides in sediments and submerged plants of the Yenisei River / A. Bolsunovsky, L. Bondareva // Journal of Alloys and Compounds. - 2007. - Vol. 444-445, Is. SPEC. ISS. - P495-499, DOI 10.1016/j.jallcom.2007.01.146 . - ISSN 0925-8388
Кл.слова (ненормированные):
Accumulation -- Actinides in aquatic plants and sediments -- Radiochemical and ?-spectrometric investigations -- Sequential extraction technique -- Yenisei River -- Actinides -- Bioaccumulation -- Plants (botany) -- Radioisotopes -- Rivers -- Sampling -- Sediments -- Mining-and-Chemical combine (MCC) -- Radiochemical and spectrometric investigations -- Sediment samples -- Sequential extraction techniques -- Contamination
Аннотация: The source of radioactive contamination of the Yenisei River floodplain, including contamination with actinides, is the Mining-and-Chemical combine (MCC), which has for many years been producing weapons-grade plutonium. Actinides have been detected not only in the soil and sediment of the river but also in the biomass of aquatic plants. The aim of our investigation was to assess the levels of actinides and other radionuclides in sediments and aquatic plants both near the MCC and at a considerable distance from it, down the Yenisei River. Investigations of the Yenisei River sediment samples revealed high activity concentrations of actinides (Pu isotopes and 241Am), which were 100 times higher than their global fallout levels. Sequential extraction of radionuclides from samples of sediments collected near the MCC showed that the amounts of extracted 241Am were the largest (up to 98% of initial activity). It was found that aquatic plants of the Yenisei River collected both near the MCC discharge site and at a distance up to 200 km downstream contained several actinide isotopes. The aquatic moss, Fontinalis antipyretica, was found to contain higher levels of radionuclides than Potamogeton lucens. Leaves of P. lucens contained higher levels of radionuclides, including 239Np, than stems. Sequential extraction of radionuclides from samples of aquatic plants showed that 239Np levels in exchangeable and adsorption fractions of P. lucens biomass were higher than in the respective fractions of F. antipyretica biomass. В© 2007 Elsevier B.V. All rights reserved.

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

Доп.точки доступа:
Bolsunovsky, A.; Bondareva, L.

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An ontogenetic approach to the assessment of plant resistance to stress factors based on the method of chlorophyll fluorescence induction. / T. V. Nesterenko, A. A. Tikhomirov // Doklady. Biochemistry and biophysics. - 2003. - Vol. 388. - P4-7 . - ISSN 1607-6729
Кл.слова (ненормированные):
chlorophyll -- adaptation -- aging -- article -- comparative study -- cucumber -- light -- metabolism -- methodology -- photostimulation -- photosynthesis -- physiology -- plant leaf -- radiation dose -- radiation exposure -- spectrofluorometry -- Adaptation, Physiological -- Aging -- Chlorophyll -- Cucumis sativus -- Light -- Photic Stimulation -- Photosynthetic Reaction Center Complex Proteins -- Plant Leaves -- Radiation Dosage -- Spectrometry, Fluorescence

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

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

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An optimization model of the photosynthetic leaf: the model of optimal photosynthetic CO2 fixation within leaves of mesophytic C3 plants. / V. G. Soukhovolsky [et al.] // Doklady Biological Sciences. - 2002. - Vol. 382. - P28-30 . - ISSN 0012-4966
Кл.слова (ненормированные):
carbon dioxide -- ribulosebisphosphate carboxylase -- article -- biological model -- ecosystem -- light -- metabolism -- photosynthesis -- plant leaf -- radiation exposure -- Carbon Dioxide -- Ecosystem -- Light -- Models, Biological -- Photosynthesis -- Plant Leaves -- Ribulose-Bisphosphate Carboxylase

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

Доп.точки доступа:
Soukhovolsky, V.G.; Fomina, I.R.; Bil, K.; Nishio, J.N.; Khlebopros, R.G.

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Assessment of plant leaf response to long-term exposure at high temperature using the method of thermoinduced chlorophyll fluorescence. / T. V. Nesterenko [et al.] // Doklady. Biochemistry and biophysics. - 2001. - Vol. 378. - P165-169 . - ISSN 1607-6729
Кл.слова (ненормированные):
chlorophyll -- pigment -- article -- biosynthesis -- chemistry -- light -- metabolism -- plant leaf -- plant physiology -- radiation exposure -- spectrofluorometry -- temperature -- thermodynamics -- time -- Chlorophyll -- Light -- Pigments, Biological -- Plant Leaves -- Plant Physiology -- Spectrometry, Fluorescence -- Temperature -- Thermodynamics -- Time Factors

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

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

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

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

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

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

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Chlorophyll fluorescence induction and estimation of plant resistance to stress factors / T. V. Nesterenko, A. A. Tikhomirov, V. N. Shikhov // Zhurnal Obshchei Biologii. - 2007. - Vol. 68, Is. 6. - С. 444-458 . - ISSN 0044-4596
Кл.слова (ненормированные):
chlorophyll -- adaptation -- cucumber -- fluorescence -- growth, development and aging -- metabolism -- physiology -- plant leaf -- review -- Adaptation, Physiological -- Chlorophyll -- Cucumis sativus -- Fluorescence -- Plant Leaves -- Cucumis sativus
Аннотация: The usage of chlorophyll fluorescence induction (CFI) for estimating various types of plant resistance (primary, general, initial, adaptive) to stress factors is reviewed. The necessity of ontogenetic approach (considering the age-specific properties of the photosynthetic apparatus) in determining general and adaptive resistance of plants to prolonged action of stress factors by the CFI method is argued. In the plant Cucumbis sativus L., the possibility is shown of using age-specific qualitative and quantitative traits of leaf CFI (changes in the shape of chlorophyll fluorescence induction curves and in the dynamics of CFI parameters in the course of leaf ontogeny) for comparative study of differences between fully active and stressed plants. Possible criteria are suggested for estimating the effect of outer stress factors by the presence or absence of a steady-state phase in the dynamics of CFI parameters during leaf ontogeny. It is also suggested to use the duration of the steady-state phase following the termination of leaf growth (estimated by the dynamics of the slow phase of CFI as the ratio of fluorescence intensity at the peak P and the steady-state fluorescence intensity, FP/FS, or as the viability index Rfd) and the variability of CFI parameters during this period as qualitative estimates of plant resistance to prolonged action of stress factors.

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

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

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CHLOROPHYLL INDUCTION FLUORESCENCE AND CERTAIN CHARACTERISTICS OF CUCUMBER LEAVES GROWN UNDER ACTION OF LIGHT OF VARIOUS SPECTRAL CONTENT AND INTENSITIES [Текст] / T. V. NESTERENKO [и др.] // FIZIOLOGIYA I BIOKHIMIYA KULTURNYKH RASTENII. - 1985. - Vol. 17, Is. 1. - P. 11-16. - Cited References: 15 . - ISSN 0256-1425

РУБ Plant Sciences + Horticulture

WOS : 660036, Красноярск, Академгородок, д. 50, стр. 50
Доп.точки доступа:
NESTERENKO, T.V.; TIKHOMIROV, A.A.; ZOLOTUKHIN, I.G.; VOLKOVA, E.K.

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CONCEPTUAL APPROACH TO SELECTING RADIATION SPECTRUM OF LAMPS FOR PLANT CULTIVATION IN ARTIFICIAL CONDITIONS / A. A. Tikhomirov, S. A. Ushakova, V. N. Shikhov, E. S. Shklavtsova // Light Eng. - 2019. - Vol. 27. - P24-30. - Cited References:17 . - ISSN 0236-2945

РУБ Engineering, Electrical & Electronic + Optics
Рубрики:
QUALITY
Кл.слова (ненормированные):
plant cultivation lamps -- light-emitting diodes -- plant light -- chromaticity -- greenhouses -- photobiological efficiency of radiation
Аннотация: Based on own and literature data, the review of existing approaches to justification of concepts of selecting contemporary light sources for plant cultivation in greenhouse conditions is presented. The work covers comparative experimental data on productivity of lettuce leaves formed under radiation of light-emitting diode emitters with a phytospectrum and white light. A high-pressure sodium lamp was taken as a control source. Lack of valid differences between this data is found out. The article discusses data of literature where effect of heat radiation on plant productivity was discovered by means of light sources of different generations (metal halide lamps, xenon lamps), which is an additional factor apart from visible radiation spectrum which is capable of influencing photobiological efficiency of lamps. On the basis of data of literature, the role of background natural solar light in greenhouses which can negatively affect spectral efficiency of artificial light sources used for supplementary lighting of plants is discussed. A set of methodological factors influencing spectral efficiency of radiation for plant productivity as well as aspects of selection of lamps for cultivation of plants in greenhouse conditions for different latitudes are reviewed and scientifically validated. A controversy in selection of PAR chromaticity of light sources for plant cultivation is demonstrated. The concept of selecting a light source for plant cultivation based on availability of specific response of plant groups to PAR chromaticity is proposed as the most objective for practical application.

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

Доп.точки доступа:
Tikhomirov, Alexander A.; Ushakova, Sofya A.; Shikhov, Valentin N.; Shklavtsova, Ekaterina S.

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10.

Conceptual approach to selecting radiation spectrum of lamps for plant cultivation in artificial conditions / A. A. Tikhomirov, S. A. Ushakova, V. N. Shikhov, E. S. Shklavtsova // Light Eng. - 2019. - Vol. 27, Is. Special Issue. - P24-39 . - ISSN 0236-2945
Кл.слова (ненормированные):
Greenhouses -- Light-emitting diodes -- Photobiological efficiency of radiation -- Plant cultivation lamps -- Plant light chromaticity -- Efficiency -- Greenhouses -- Light emitting diodes -- Metal halide lamps -- Metal halides -- Productivity -- Radiation -- Artificial light source -- Conceptual approaches -- Greenhouse conditions -- High pressure sodium lamps -- Plant light chromaticity -- Plant productivity -- Spectral efficiencies -- Visible radiations -- Plants (botany)
Аннотация: Based on own and literature data, the review of existing approaches to justification of concepts of selecting contemporary light sources for plant cultivation in greenhouse conditions is presented. The work covers comparative experimental data on productivity of lettuce leaves formed under radiation of light-emitting diode emitters with a phytospectrum and white light. A high-pressure sodium lamp was taken as a control source. Lack of valid differences between this data is found out. The article discusses data of literature where effect of heat radiation on plant productivity was discovered by means of light sources of different generations (metal halide lamps, xenon lamps), which is an additional factor apart from visible radiation spectrum which is capable of influencing photobiological efficiency of lamps. On the basis of data of literature, the role of background natural solar light in greenhouses which can negatively affect spectral efficiency of artificial light sources used for supplementary lighting of plants is discussed. A set of methodological factors influencing spectral efficiency of radiation for plant productivity as well as aspects of selection of lamps for cultivation of plants in greenhouse conditions for different latitudes are reviewed and scientifically validated. A controversy in selection of PAR chromaticity of light sources for plant cultivation is demonstrated. The concept of selecting 2 a light source for plant cultivation based on availability of specific response of plant groups to PAR chromaticity is proposed as the most objective for practical application. © 2019, LLC Editorial of Journal "Light Technik". All rights reserved.

Scopus
Держатели документа:
Biophysics Institute of the Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk Scientific Centre of the Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Tikhomirov, A. A.; Ushakova, S. A.; Shikhov, V. N.; Shklavtsova, E. S.

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11.

Contribution of different groups of autotrophs to the primary production of the mountain Lake Oiskoe [Text] / E. A. Ivanova [et al.] // Contemp. Probl. Ecol. - 2014. - Vol. 7, Is. 4. - P397-409, DOI 10.1134/S1995425514040040. - Cited References: 49. - This work was supported by the Federal Target Program "Scientific and Scientific-Pedagogical Personnel for an Innovative Russia," state contract no. 16.740.11.0484, and the project of the Ministry of Education and Science of the Russian Federation "Ecological and Biochemical Laws of Matter and Energy Transfer in Food Webs of Aquatic Ecosystems." . - ISSN 1995-4255. - ISSN 1995-4263

РУБ Ecology
Рубрики:
DCMU-FLUORESCENCE METHOD
   PHYTOPLANKTON
   CHLOROPHYLL
   PERIPHYTON
   RANGE
Кл.слова (ненормированные):
primary productivity -- phytoplankton -- phytoperiphyton -- macrophytes -- fluorescence -- chlorophyll -- Lake Oiskoe
Аннотация: Productivity characteristics of phytoplankton, phytoperiphyton, and five species of macrophytes in the mountain oligotrophic Lake Oiskoe (Ergaky Mountain Range, West Sayan) have been studied. High primary productivity has been noted for phytoperiphyton and macrophyte communities. Photosynthetic parameters of the macrophyte leaves have been compared using a PAM fluorimeter.

WOS
Держатели документа:
[Ivanova, E. A.
Anishchenko, O. V.
Glushchenko, L. A.
Gaevsky, N. A.
Kolmakov, V. I.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Ivanova, E. A.
Anishchenko, O. V.
Kolmakov, V. I.] Russian Acad Sci, Siberian Branch, Inst Biophys, Krasnoyarsk 660036, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Ivanova, E.A.; Anishchenko, O.V.; Glushchenko, L.A.; Gaevsky, N.A.; Kolmakov, V.I.; Federal Target Program "Scientific and Scientific-Pedagogical Personnel for an Innovative Russia" [16.740.11.0484]; Ministry of Education and Science of the Russian Federation

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12.

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

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

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

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

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13.

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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14.

Effect of light intensity on chlorophyll fluorescence in wheat leaves: Application of PAM-fluorometry / V. N. Shikhov, T. V. Nesterenko, A. A. Tikhomirov // Russ. J. Plant Physiol. - 2016. - Vol. 63, Is. 3. - P417-422, DOI 10.1134/S1021443716030134 . - ISSN 1021-4437
Кл.слова (ненормированные):
actinic light intensity -- induction of chlorophyll fluorescence -- leaf ontogeny -- Triticum aestivum
Аннотация: Application of pulse-amplitude-modulation (PAM) fluorometers for measuring slow stages of chlorophyll fluorescence induction (CFI) is considered. With an example of Triticum aestuvum L. plants grown under continuous illumination at a photon flux density of 600 μmol/(m2 s) photosynthetically active radiation (PAR), the CFI curves were analyzed with leaves of various ages as a function of actinic light intensity. The fluorometer PAM-2100 was applied for measurements of CFI curves. The characteristic peaks of CFI curves in wheat leaves were most conspicuous and had the largest amplitudes at 600–800 μmol/(m2 s) PAR, which corresponds to the middle range of actinic light intensities employed in PAM-2100 fluorometers. In plants exposed to favorable and stressful conditions, the developmental stages may proceed at different rates; thus, the comparison of fluorescence parameters for leaves of equal calendar age but having different physiological states may provide ambiguous data. Therefore, the feasibility of recording CFI curves of different types is quite important for rapid diagnostics of the age and state of plant leaves, as well as for adequate physiological conclusions. © 2016, Pleiades Publishing, Ltd.

Scopus,
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WOS
Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50/50, Krasnoyarsk, Russian Federation

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

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15.

Effect of light intensity on the age dependence of nonphotochemical fluorescence quenching in wheat leaf [Text] / T. V. Nesterenko, V. N. Shikhov, A. A. Tikhomirov // Photosynthetica. - 2015. - Vol. 53, Is. 4. - P617-620, DOI 10.1007/s11099-015-0133-2. - Cited References:16. - The study was performed within the framework of subject No. 56.1.4., Section VI in accordance with State Program of RAS Fundamental Research for 2013-2020. . - ISSN 0300-3604. - ISSN 1573-9058

РУБ Plant Sciences
Рубрики:
CHLOROPHYLL FLUORESCENCE
   PHOTOSYNTHESIS
   LEAVES
   INDUCTION
   ENERGY
Кл.слова (ненормированные):
chlorophyll fluorescence induction -- leaf age -- photosystem II
Аннотация: The effects of actinic light (AL) intensity on the age dependence of nonphotochemical fluorescence quenching (q(N)) and effective quantum yield in PSII (I broken vertical bar(PSII)) were studied in continuously illuminated wheat leaves of the upper tier. Regular changes were revealed in both age dependence of q(N) at elevated AL intensities and light curves of q(N). These changes are related to alterations in strategies of redistribution and use of absorbed light energy by the photosynthetic apparatus at different stages of wheat leaf development. Unlike I broken vertical bar(PSII), q(N) as a parameter was more sensitive to the differences in the leaf age at a certain range of light intensities. At the same time, the stability of q(N) at moderate light intensities may serve as an indication of leaf maturity.

WOS,
Scopus
Держатели документа:
RAS, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Nesterenko, T. V.; Shikhov, V. N.; Tikhomirov, A. A.; RAS [56.1.4]

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16.

Estimation of changes in the activity of photosynthetic apparatus of plant leaves based on half-time of fluorescence intensity decrease / T. V. Nesterenko, V. N. Shikhov, A. A. Tikhomirov // Photosynthetica. - 2019. - Vol. 57, Is. 1. - P132-136, DOI 10.32615/ps.2019.005. - Cited References:34 . - ISSN 0300-3604. - ISSN 1573-9058

РУБ Plant Sciences
Рубрики:
ELECTRIC-POTENTIAL DIFFERENCE
CHLOROPHYLL FLUORESCENCE
THYLAKOID
Кл.слова (ненормированные):
chlorophyll fluorescence induction -- leaf age -- photosystem II
Аннотация: The range of variations in parameter tau(0.5) - half-time of fluorescence intensity decrease during the slow phase of chlorophyll fluorescence induction (CFI) - has been studied during ontogeny of leaves of monocotyledonous and dicotyledonous plants in plant communities of different structures. Plants were grown hydroponically on expanded clay aggregate in growth chambers, under PPFD of 400 mu mol(photon) m(-2) s(-1), under controlled conditions. Analysis of the literature data and results of experimental observations of tau(0.5) behavior compared to other CFI parameters, nonphotochemical quenching coefficient, q(N), in particular, leads to the conclusion that parameter tau(0.5) can be effectively used for indirect estimation of variations in the activity of photosynthetic apparatus during ontogeny of plant leaves.

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Держатели документа:
RAS, Krasnoyarsk Sci Ctr SB, Fed Res Ctr, Inst Biophys SB, Krasnoyarsk 660036, Russia.

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

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17.

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.

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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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18.

Fluorescence induced by light of 380-540 nm in leaves of cucumber depening on the vegetation time and irradiation regime [Текст] / V. V. Zavoruev, E. N. Zavorueva, A. V. Shelegov // Biofizika. - 2000. - Vol. 45, Is. 4. - P. 704-711. - Cited References: 25 . - ISSN 0006-3029

РУБ Biophysics
Рубрики:
CHLOROPHYLL
   INDUCTION
   RATIO
   INCREASE
Кл.слова (ненормированные):
slow fluorescence induction -- cucumber leaves -- vegetation time spectral conditions
Аннотация: The slow fluorescence induction produced iii cucumber leaves by light in the range of wavelengths 380-540 nm and intensity of 180 W/m(2) was studied. The ratio of fluorescence maxima in the red region (F(734)/F(682)) in young and mature leaves was approximately 2. It is assumed that this value depends on an increase in the contribution of the long-wavelength fluorescence due to the spillover effect. In plants grown under natural conditions, the paramster F(734)/F(682) correlated with the concentrations of chlorophyll and carotenoids. In plants grown hi the light of red and blue regions no such correlation was observed and the F(734)/F(682) remained unchanged. It is concluded that the F(534)/F(682) is affected by the intensity and spectral composition of exciting light used during the growing.

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

Доп.точки доступа:
Zavoruev, V.V.; Zavorueva, E.N.; Shelegov, A.V.

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19.

INDUCTION OF FLUORESCENCE IN WHEAT LEAVES DURING THEIR ONTOGENESIS [Text] / T. V. NESTERENKO, F. Y. SIDKO // SOVIET PLANT PHYSIOLOGY. - 1980. - Vol. 27, Is. 2. - P. 262-266. - Cited References: 14 . - ISSN 0038-5719

РУБ Plant Sciences

WOS : 660036, Красноярск, Академгородок, д. 50, стр. 50
Доп.точки доступа:
NESTERENKO, T.V.; SIDKO, F.Y.

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20.

Influence of excitation light intensity and leaf age on the slow chlorophyll fluorescence transient in radish / T. V. Nesterenko, A. A. Tikhomirov, V. N. Shikhov // Biophysics (Russian Federation). - 2012. - Vol. 57, Is. 4. - P464-468, DOI 10.1134/S0006350912040136 . - ISSN 0006-3509
Кл.слова (ненормированные):
leaf ontogeny -- light dependence -- slow fluorescence induction -- temporal indices -- Raphanus sativus
Аннотация: The temporal characteristics of the slow phase of chlorophyll fluorescence induction-T0. 5 (half-decay time) and tmin (an integral-based index of the variable emission rate)-as well as the popular amplitude index FP/FS were determined at different excitation light intensities (Iex [400-500 nm] of 20-80 W/m2) in dark-adapted leaves of different age (3-24 days) taken from radish plants grown under continuous light of 100 W/m2 PAR. All the profiles thus obtained were mutually consistent, and the age-related variations were minimized at Iex > 40 W/m2; at that the age-averaged temporal indices proved to be more light-responsive than the standard amplitude ratio. В© 2012 Pleiades Publishing, Ltd.

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

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

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