TY  - JOUR
A1  - Perrella, Giorgio
A1  - Bäurle, Isabel
A1  - van Zanten, Martijn
T1  - Epigenetic regulation of thermomorphogenesis and heat stress tolerance
JF  - New phytologist : international journal of plant science
N2  - Many environmental conditions fluctuate and organisms need to respond effectively. This is especially true for temperature cues that can change in minutes to seasons and often follow a diurnal rhythm. Plants cannot migrate and most cannot regulate their temperature. Therefore, a broad array of responses have evolved to deal with temperature cues from freezing to heat stress. A particular response to mildly elevated temperatures is called thermomorphogenesis, a suite of morphological adaptations that includes thermonasty, formation of thin leaves and elongation growth of petioles and hypocotyl. Thermomorphogenesis allows for optimal performance in suboptimal temperature conditions by enhancing the cooling capacity. When temperatures rise further, heat stress tolerance mechanisms can be induced that enable the plant to survive the stressful temperature, which typically comprises cellular protection mechanisms and memory thereof. Induction of thermomorphogenesis, heat stress tolerance and stress memory depend on gene expression regulation, governed by diverse epigenetic processes. In this Tansley review we update on the current knowledge of epigenetic regulation of heat stress tolerance and elevated temperature signalling and response, with a focus on thermomorphogenesis regulation and heat stress memory. In particular we highlight the emerging role of H3K4 methylation marks in diverse temperature signalling pathways.
KW  - chromatin remodelling
KW  - elevated temperature
KW  - epigenetics
KW  - heat stress
KW  - histone modification
KW  - memory
KW  - temperature response
KW  - thermomorphogenesis
Y1  - 2022
U6  - https://doi.org/10.1111/nph.17970
SN  - 0028-646X
SN  - 1469-8137
VL  - 234
IS  - 4
SP  - 1144
EP  - 1160
PB  - Wiley
CY  - Hoboken
ER  -