Tolerance of the photosynthetic apparatus in recombinant lines of wheat adapting to water stress of varying intensity
The stress tolerance index (STI) of leaf photosynthetic parameters was analysed in recombinant introgression lines of spring wheat (Triticum aestivum L.) grown under water stress of varying intensity in the simulated conditions of soil and soil-atmospheric drought. STI for the chlorophyll content wa...
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Academy of Sciences of the Czech Republic, Institute of Experimental Botany
2019-01-01
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doaj-85c7a120aeae4a219f2d2439557330a72020-11-25T02:53:12ZengAcademy of Sciences of the Czech Republic, Institute of Experimental BotanyPhotosynthetica0300-36041573-90582019-01-0157116016910.32615/ps.2019.007phs-201901-0041Tolerance of the photosynthetic apparatus in recombinant lines of wheat adapting to water stress of varying intensityS.V. OSIPOVA0A.V. PERMYAKOV1M.D. PERMYAKOVA2E.G. RUDIKOVSKAYA3Siberian Institute of Plant Physiology and Biochemistry SB RAS, P.O. Box 317, Lermontov St., 132, 664033 Irkutsk, RussiaSiberian Institute of Plant Physiology and Biochemistry SB RAS, P.O. Box 317, Lermontov St., 132, 664033 Irkutsk, RussiaSiberian Institute of Plant Physiology and Biochemistry SB RAS, P.O. Box 317, Lermontov St., 132, 664033 Irkutsk, RussiaSiberian Institute of Plant Physiology and Biochemistry SB RAS, P.O. Box 317, Lermontov St., 132, 664033 Irkutsk, RussiaThe stress tolerance index (STI) of leaf photosynthetic parameters was analysed in recombinant introgression lines of spring wheat (Triticum aestivum L.) grown under water stress of varying intensity in the simulated conditions of soil and soil-atmospheric drought. STI for the chlorophyll content was >1 regardless of experimental conditions. Carotenoids content increased only when soil drought occurred. Maximum quantum yield of PSII photochemistry was the most stable and stress-resistant parameter. Minimal fluorescence yield of the dark-adapted state was only sensitive to soil-atmospheric drought. Nonphotochemical quenching decreased under water stress, while parameters of the fast light curve based on chlorophyll fluorescence increased proportionally to the level of the stress load. We believe that these parameters are the most sensitive to the changes in the water supply of wheat plants, and are convenient for the rapid and noninvasive assessment of the wheat photosynthetic apparatus state under drought conditions.https://ps.ueb.cas.cz/artkey/phs-201901-0041_tolerance-of-the-photosynthetic-apparatus-in-recombinant-lines-of-wheat-adapting-to-water-stress-of-varying-int.phpantioxidant enzymes; carotenoids; chlorophyll content; chlorophyll fluorescence; drought; gas exchange. |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
S.V. OSIPOVA A.V. PERMYAKOV M.D. PERMYAKOVA E.G. RUDIKOVSKAYA |
spellingShingle |
S.V. OSIPOVA A.V. PERMYAKOV M.D. PERMYAKOVA E.G. RUDIKOVSKAYA Tolerance of the photosynthetic apparatus in recombinant lines of wheat adapting to water stress of varying intensity Photosynthetica antioxidant enzymes; carotenoids; chlorophyll content; chlorophyll fluorescence; drought; gas exchange. |
author_facet |
S.V. OSIPOVA A.V. PERMYAKOV M.D. PERMYAKOVA E.G. RUDIKOVSKAYA |
author_sort |
S.V. OSIPOVA |
title |
Tolerance of the photosynthetic apparatus in recombinant lines of wheat adapting to water stress of varying intensity |
title_short |
Tolerance of the photosynthetic apparatus in recombinant lines of wheat adapting to water stress of varying intensity |
title_full |
Tolerance of the photosynthetic apparatus in recombinant lines of wheat adapting to water stress of varying intensity |
title_fullStr |
Tolerance of the photosynthetic apparatus in recombinant lines of wheat adapting to water stress of varying intensity |
title_full_unstemmed |
Tolerance of the photosynthetic apparatus in recombinant lines of wheat adapting to water stress of varying intensity |
title_sort |
tolerance of the photosynthetic apparatus in recombinant lines of wheat adapting to water stress of varying intensity |
publisher |
Academy of Sciences of the Czech Republic, Institute of Experimental Botany |
series |
Photosynthetica |
issn |
0300-3604 1573-9058 |
publishDate |
2019-01-01 |
description |
The stress tolerance index (STI) of leaf photosynthetic parameters was analysed in recombinant introgression lines of spring wheat (Triticum aestivum L.) grown under water stress of varying intensity in the simulated conditions of soil and soil-atmospheric drought. STI for the chlorophyll content was >1 regardless of experimental conditions. Carotenoids content increased only when soil drought occurred. Maximum quantum yield of PSII photochemistry was the most stable and stress-resistant parameter. Minimal fluorescence yield of the dark-adapted state was only sensitive to soil-atmospheric drought. Nonphotochemical quenching decreased under water stress, while parameters of the fast light curve based on chlorophyll fluorescence increased proportionally to the level of the stress load. We believe that these parameters are the most sensitive to the changes in the water supply of wheat plants, and are convenient for the rapid and noninvasive assessment of the wheat photosynthetic apparatus state under drought conditions. |
topic |
antioxidant enzymes; carotenoids; chlorophyll content; chlorophyll fluorescence; drought; gas exchange. |
url |
https://ps.ueb.cas.cz/artkey/phs-201901-0041_tolerance-of-the-photosynthetic-apparatus-in-recombinant-lines-of-wheat-adapting-to-water-stress-of-varying-int.php |
work_keys_str_mv |
AT svosipova toleranceofthephotosyntheticapparatusinrecombinantlinesofwheatadaptingtowaterstressofvaryingintensity AT avpermyakov toleranceofthephotosyntheticapparatusinrecombinantlinesofwheatadaptingtowaterstressofvaryingintensity AT mdpermyakova toleranceofthephotosyntheticapparatusinrecombinantlinesofwheatadaptingtowaterstressofvaryingintensity AT egrudikovskaya toleranceofthephotosyntheticapparatusinrecombinantlinesofwheatadaptingtowaterstressofvaryingintensity |
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