Acclimation of barley plants to elevated CO2 concentration and high light intensity does not increase their protection against drought, heat, and their combination
Plants face fluctuations in environmental conditions throughout their life cycles. Some of these conditions, such as CO2 concentration and increasing temperature, are closely linked to ongoing climate change. These conditions not only affect plant growth and development but also modify the response...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-12-01
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| Series: | Plant Stress |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667064X24003403 |
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| author | Hana Findurová Otmar Urban Barbora Veselá Jakub Nezval Radomír Pech Vladimír Špunda Karel Klem |
| author_facet | Hana Findurová Otmar Urban Barbora Veselá Jakub Nezval Radomír Pech Vladimír Špunda Karel Klem |
| author_sort | Hana Findurová |
| collection | DOAJ |
| description | Plants face fluctuations in environmental conditions throughout their life cycles. Some of these conditions, such as CO2 concentration and increasing temperature, are closely linked to ongoing climate change. These conditions not only affect plant growth and development but also modify the response to sudden exposure to stressors through morphological, physiological, and biochemical acclimation. Understanding these responses is therefore important for defining adaptation strategies for future crop production. In this study, we tested the acclimation effect of light intensity (low, high) and CO2 concentration (low, ambient, elevated) on barley plants and its implications for subsequent responses to drought, heat, and their combination. The acclimation to the growth conditions induced numerous changes both in plant morphology and physiology. The whole-plant leaf area was stimulated by increasing light intensity and CO2 concentration. That led to increased whole-plant transpiration despite the trend of stomatal conductance was the opposite in comparison to leaf area. The increased whole-plant transpiration then increased the sensitivity of barley plants to the stress treatments. Similarly, the stimulatory effect of high light intensity on antioxidative capacity was not sufficient to improve barley performance under the stress treatments. The presented results show that for physiological or biochemical indicators of stress tolerance to be realistically used to evaluate the expected response to stress conditions, they must be related to the morphology of the whole plant, which influences both the severity of stress and the quantitative role of resistance mechanisms. |
| format | Article |
| id | doaj-art-19981c0fbf3241f9a96febb1faa7fea3 |
| institution | Kabale University |
| issn | 2667-064X |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Plant Stress |
| spelling | doaj-art-19981c0fbf3241f9a96febb1faa7fea32024-12-19T11:02:13ZengElsevierPlant Stress2667-064X2024-12-0114100687Acclimation of barley plants to elevated CO2 concentration and high light intensity does not increase their protection against drought, heat, and their combinationHana Findurová0Otmar Urban1Barbora Veselá2Jakub Nezval3Radomír Pech4Vladimír Špunda5Karel Klem6Global Change Research Institute of the Czech Academy of Sciences, Bělidla 986/4a, 603 00 Brno, Czech Republic; Department of Agrosystems and Bioclimatology, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1665/1, 613 00 Brno,; Corresponding author.Global Change Research Institute of the Czech Academy of Sciences, Bělidla 986/4a, 603 00 Brno, Czech RepublicGlobal Change Research Institute of the Czech Academy of Sciences, Bělidla 986/4a, 603 00 Brno, Czech RepublicDepartment of Physics, Faculty of Science, University of Ostrava, 30. dubna 22, 701 03 Ostrava, Czech RepublicDepartment of Physics, Faculty of Science, University of Ostrava, 30. dubna 22, 701 03 Ostrava, Czech RepublicGlobal Change Research Institute of the Czech Academy of Sciences, Bělidla 986/4a, 603 00 Brno, Czech Republic; Department of Physics, Faculty of Science, University of Ostrava, 30. dubna 22, 701 03 Ostrava, Czech RepublicGlobal Change Research Institute of the Czech Academy of Sciences, Bělidla 986/4a, 603 00 Brno, Czech Republic; Department of Agrosystems and Bioclimatology, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1665/1, 613 00 Brno,Plants face fluctuations in environmental conditions throughout their life cycles. Some of these conditions, such as CO2 concentration and increasing temperature, are closely linked to ongoing climate change. These conditions not only affect plant growth and development but also modify the response to sudden exposure to stressors through morphological, physiological, and biochemical acclimation. Understanding these responses is therefore important for defining adaptation strategies for future crop production. In this study, we tested the acclimation effect of light intensity (low, high) and CO2 concentration (low, ambient, elevated) on barley plants and its implications for subsequent responses to drought, heat, and their combination. The acclimation to the growth conditions induced numerous changes both in plant morphology and physiology. The whole-plant leaf area was stimulated by increasing light intensity and CO2 concentration. That led to increased whole-plant transpiration despite the trend of stomatal conductance was the opposite in comparison to leaf area. The increased whole-plant transpiration then increased the sensitivity of barley plants to the stress treatments. Similarly, the stimulatory effect of high light intensity on antioxidative capacity was not sufficient to improve barley performance under the stress treatments. The presented results show that for physiological or biochemical indicators of stress tolerance to be realistically used to evaluate the expected response to stress conditions, they must be related to the morphology of the whole plant, which influences both the severity of stress and the quantitative role of resistance mechanisms.http://www.sciencedirect.com/science/article/pii/S2667064X24003403Gas exchangeTranspirationLeaf areaAntioxidative capacity |
| spellingShingle | Hana Findurová Otmar Urban Barbora Veselá Jakub Nezval Radomír Pech Vladimír Špunda Karel Klem Acclimation of barley plants to elevated CO2 concentration and high light intensity does not increase their protection against drought, heat, and their combination Plant Stress Gas exchange Transpiration Leaf area Antioxidative capacity |
| title | Acclimation of barley plants to elevated CO2 concentration and high light intensity does not increase their protection against drought, heat, and their combination |
| title_full | Acclimation of barley plants to elevated CO2 concentration and high light intensity does not increase their protection against drought, heat, and their combination |
| title_fullStr | Acclimation of barley plants to elevated CO2 concentration and high light intensity does not increase their protection against drought, heat, and their combination |
| title_full_unstemmed | Acclimation of barley plants to elevated CO2 concentration and high light intensity does not increase their protection against drought, heat, and their combination |
| title_short | Acclimation of barley plants to elevated CO2 concentration and high light intensity does not increase their protection against drought, heat, and their combination |
| title_sort | acclimation of barley plants to elevated co2 concentration and high light intensity does not increase their protection against drought heat and their combination |
| topic | Gas exchange Transpiration Leaf area Antioxidative capacity |
| url | http://www.sciencedirect.com/science/article/pii/S2667064X24003403 |
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