About this Research Topic
Exposure of plants to sub-optimum, but non-lethal conditions may provide protection against a subsequent drastic stressor. This phenomenon is generally called acclimation. This promotion of stress tolerance is usually induced by the same type of stressors, for example low temperature hardening induces freezing tolerance; but cross-tolerance against another type of stressors may also occur.
Recent results show that environmental conditions may also substantially affect the effectiveness of acclimation processes. The influence of light during the acclimation period on the achievement of high level of stress tolerance may be at least as important as the genetic background of a given plant genotype. The importance of light can be deduced from the fact that cold hardening of various plant species, including winter cereals or Arabidopsis, is much less effective in the dark than under normal light conditions. However, the exact functions of light and the underlying molecular mechanism(s) associated with efficient acclimation are still poorly understood. There are still several open questions in this field. These, among others, include the signalling processes, such as light driven electron transport, which may induce stress tolerance; the involvement of phytochrome system in the abiotic stress acclimation processes; or the effects of UV irradiance on the stress tolerance in plants.
This Research Topic welcomes the submission of all types of articles, with a preference for original research, reviews, and opinions, addressing the following:
• Effects of visible light on acclimation processes to abiotic stressors in plants .
• Effects of UV-B on plant acclimation processes to abiotic stressors.
• Effects of light quality on plant acclimation processes to abiotic stressors.
Keywords: Abiotic Stress, Acclimation, Crop Plants, UV-B, Light
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