Role of Epigenetic Modifications in Plant Response to Abiotic Stresses

摘要: Abiotic stresses are the important limiting factors of growth and crop production. They have a crucial role in ecological dispersion plants. All living organisms, especially plants, developed many different mechanisms on physiological, biochemical molecular levels for purpose acclimatization to stresses. Ability response under environmental can be among genotypes even species within genus. This phenomenon needs vast reprogramming gene expression its regulation is part dependent epigenetic modifications including alternations histones DNA methylation without any alteration base sequence. These may cause an increase expression, synthesis accumulation tolerant both transcriptional posttranscriptional levels, genome reorganization or not heritable. changes alone cooperation with genetic involve plant growth, development stress. Therefore, these pathways indicate efforts survival changes. In this review, we summarized significance alterations abiotic stress responses discussed their classes interactions induced changes. Keywords: acclimatization; Methylation; Gene Expression; Histones, Nucleic Acids; Stress.,