Research Progress on Histone Acetylation Modification Regulating Plant Stress Resistance
GONG An-Di, BAO Fei*
School of Landscape Architecture/National Engineering Research Center for Floriculture/Beijing Laboratory of Urban and Rural Ecological Environment, Beijing Forestry University, Beijing 100083, China
Abstract：Histone acetylation modification, a dynamic, reversible epigenetic regulation method, plays an important role in plant stress resistance. This modification mainly changes the chromatin structure through the coordinated regulation of histone acetyltransferases (HATs) and histone deacetylases (HDACs), which affects gene transcription activity. This review summarized the mechanisms of HATs and HDACs to various abiotic and biotic stresses, including drought, heat, cold, salt and biotic stress. First of all, the expression of HATs and HDACs genes is generally induced by stress, causing changes in the level of intracellular histone acetylation and regulating plants' ability to adapt to stress; Next, HATs and HDACs usually interact with transcription factors to directionally change histone modifications in the region where the corresponding target gene is located, thereby regulating gene expression and responding to stress; Besides, in addition to acting on histones, HATs and HDACs can also change the acetylation modification of non-histones such as transcription factors and enzymes, thereby affecting their function or activity, and ultimately affecting plant stress resistance. This article summarized the research progress of HATs and HDACs in plant stress resistance, with the aim of providing theoretical support for plant stress-resistant breeding.
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