Role of epigenetic factors in response to stress and establishment of somatic memory of stress exposure in plants
Loading...
Date
2023
Authors
Kovalchuk, Igor
Journal Title
Journal ISSN
Volume Title
Publisher
MDPI
Abstract
All species are well adapted to their environment. Stress causes a magnitude of biochemical and molecular responses in plants, leading to physiological or pathological changes. The response to various stresses is genetically predetermined, but is also controlled on the epigenetic level. Most plants are adapted to their environments through generations of exposure to all elements. Many plant species have the capacity to acclimate or adapt to certain stresses using the mechanism of priming. In most cases, priming is a somatic response allowing plants to deal with the same or similar stress more efficiently, with fewer resources diverted from growth and development. Priming likely relies on multiple mechanisms, but the differential expression of non-coding RNAs, changes in DNA methylation, histone modifications, and nucleosome repositioning play a crucial role. Specifically, we emphasize the role of BRM/CHR17, BRU1, FGT1, HFSA2, and H2A.Z proteins as positive regulators, and CAF-1, MOM1, DDM1, and SGS3 as potential negative regulators of somatic stress memory. In this review, we will discuss the role of epigenetic factors in response to stress, priming, and the somatic memory of stress exposures.
Description
Open access article. Creative Commons Attribution 4.0 International license (CC BY 4.0) applies
Keywords
Stress tolerance , Plants , DNA methylation , Abiotic stress , Biotic stress , Priming , Epigenetics , Stress memory , Somatic memory , Stress exposure
Citation
Kovalchuk, I. (2023). Role of epigenetic factors in response to stress and establishment of somatic memory of stress exposure in plants. Plants, 12(21), Article 3667. https://doi.org/10.3390/plants12213667