0602735 - ÚVGZ 2025 RIV NL eng J - Článek v odborném periodiku
Findurová, Hana - Urban, Otmar - Veselá, Barbora - Nezval, J. - Pech, R. - Špunda, Vladimír - Klem, Karel
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. Roč. 14, DEC (2024), č. článku 100687. ISSN 2667-064X. E-ISSN 2667-064X
Grant CEP: GA MŠMT(CZ) EH22_008/0004635
Institucionální podpora: RVO:86652079
Klíčová slova: photosynthetic down-regulation * leaf-spot formation * carbon-dioxide * morphological analysis * stomatal conductance * responses * stress * growth * l. * temperature * Gas exchange * Transpiration * Leaf area * Antioxidative capacity
Obor OECD: Plant sciences, botany
Impakt faktor: 6.8, rok: 2023
Způsob publikování: Open access
Web výsledku:
https://www.sciencedirect.com/science/article/pii/S2667064X24003403?via%3DihubDOI: https://doi.org/10.1016/j.stress.2024.100687

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.
Trvalý link: https://hdl.handle.net/11104/0360022


 
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Primární zdrojová data k článku Findurová et al. (2024)"Acclimation of barley plants to elevated CO2 concentration and high light intensity does not increase their protection against drought, heat, and their combination"