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Light priming of thermotolerance development in plants

Cited 7 time in Web of Science Cited 7 time in Scopus
Authors
Han, Shin-Hee; Park, Young-Joon; Park, Chung-Mo
Issue Date
2019-01
Citation
Plant Signaling and Behavior, Vol.14 No.1, p. e1554469
Keywords
Thermotolerancelight primingphyBROS detoxification
Abstract
It is widely perceived that plant responses to environmental temperatures are profoundly influenced by light conditions. However, it is unknown how light signals modulate plant thermal responses and what photoreceptors are responsible for the light regulation of thermal adaptive process. We have recently reported that phytochrome B (phyB)-mediated red light signals prime the ASCORBATE PEROXIDASE 2 (APX2)-mediated detoxification reaction of reactive oxygen species (ROS), a well-known biochemical process that mediates the acquisition of thermotolerance under high temperature conditions. It is interesting that red light influences the HEAT SHOCK FACTOR A1 (HSFA1)-stimulated activation of the APX2 transcription, which is otherwise responsive primarily to stressful high temperatures. Blue light also efficiently primes the APX2-mediated induction of thermotolerance. In natural habitats, temperatures fluctuate according to the light/dark cycles with temperature peaks occurring during the daytime. It is thus apparent that plants utilize light information to prepare for upcoming high temperature spells.
ISSN
1559-2316
URI
https://hdl.handle.net/10371/172082
DOI
https://doi.org/10.1080/15592324.2018.1554469
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College of Natural Sciences (자연과학대학)Dept. of Chemistry (화학부)Journal Papers (저널논문_화학부)
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