Crosstalk between light‐ and temperature‐mediated processes under cold and heat stress conditions in plants

Janda, Tibor and Prerostová, S. and Vanková, Radomira and Darkó, Éva (2021) Crosstalk between light‐ and temperature‐mediated processes under cold and heat stress conditions in plants. INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES, 22 (16). ISSN 1661-6596

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Abstract

Extreme temperatures are among the most important stressors limiting plant growth and development. Results indicate that light substantially influences the acclimation processes to both low and high temperatures, and it may affect the level of stress injury. The interaction between light and temperature in the regulation of stress acclimation mechanisms is complex, and both light intensity and spectral composition play an important role. Higher light intensities may lead to over-excitation of the photosynthetic electron transport chain; while different wavelengths may act through different photoreceptors. These may induce various stress signalling processes, leading to regulation of stomatal movement, antioxidant and osmoregulation capacities, hormonal actions, and other stress‐related pathways. In recent years, we have significantly expanded our knowledge in both light and temperature sensing and signalling. The present review provides a synthesis of results for understanding how light influences the acclimation of plants to extreme low or high tem-peratures, including the sensing mechanisms and molecular crosstalk processes. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.

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