Genetic and epigenetic control of plant heat responses.
Genetic and epigenetic control of plant heat responses.
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DOI：
10.3389/fpls.2015.00267
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发表时间：
2015
影响因子：
5.6
通讯作者：
He Z
中科院分区：
文献类型：
--
作者：
Liu J;Feng L;Li J;He Z
植物已经进化出复杂的遗传和表观遗传调节系统，以快速响应不利的环境条件，如热，冷，干旱和病原体感染。特别是高温极大地影响植物生长发育、免疫力和昼夜节律，对全球粮食供应构成严重威胁。根据暴露的温度，热通常可以被分类为温暖的环境温度（约22-27°C）、高温（27-30°C）和极高温度（37-42°C，也称为热胁迫）。植物热响应的遗传机制已被广泛研究，主要集中在环境温度升高介导的形态驯化和开花加速、高温对生物钟和植物免疫的调节以及对热胁迫的耐热性等方面。近年来，热反应的表观遗传调控研究取得了很大进展，包括DNA甲基化、组蛋白修饰、组蛋白变异、ATP依赖的染色质重塑、组蛋白伴侣、小RNA、长链非编码RNA以及其他尚未明确的表观遗传机制。这些表观遗传修饰调节热响应基因的表达，并起到防止热相关损伤的作用。本文综述了近年来植物热反应的遗传和表观遗传调控的研究进展，重点介绍了表观遗传调控在植物热反应中的作用。最后对今后的研究方向进行了展望。
Plants have evolved sophisticated genetic and epigenetic regulatory systems to respond quickly to unfavorable environmental conditions such as heat, cold, drought, and pathogen infections. In particular, heat greatly affects plant growth and development, immunity and circadian rhythm, and poses a serious threat to the global food supply. According to temperatures exposing, heat can be usually classified as warm ambient temperature (about 22–27°C), high temperature (27–30°C) and extremely high temperature (37–42°C, also known as heat stress) for the model plant Arabidopsis thaliana. The genetic mechanisms of plant responses to heat have been well studied, mainly focusing on elevated ambient temperature-mediated morphological acclimation and acceleration of flowering, modulation of circadian clock and plant immunity by high temperatures, and thermotolerance to heat stress. Recently, great progress has been achieved on epigenetic regulation of heat responses, including DNA methylation, histone modifications, histone variants, ATP-dependent chromatin remodeling, histone chaperones, small RNAs, long non-coding RNAs and other undefined epigenetic mechanisms. These epigenetic modifications regulate the expression of heat-responsive genes and function to prevent heat-related damages. This review focuses on recent progresses regarding the genetic and epigenetic control of heat responses in plants, and pays more attention to the role of the major epigenetic mechanisms in plant heat responses. Further research perspectives are also discussed.
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影响因子：
3.7
作者：
Boyko A;Blevins T;Yao Y;Golubov A;Bilichak A;Ilnytskyy Y;Hollunder J;Meins F Jr;Kovalchuk I
通讯作者：
Kovalchuk I
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3.7
作者：
Correia, Barbara;Valledor, Luis;Pinto, Gloria
通讯作者：
Pinto, Gloria
影响因子：
7.4
作者：
Chellappan, P;Vanitharani, R;Fauquet, CM
通讯作者：
Fauquet, CM
影响因子：
5.6
作者：
Bilichak A;Ilnytskyy Y;Wóycicki R;Kepeshchuk N;Fogen D;Kovalchuk I
通讯作者：
Kovalchuk I
影响因子：
7.3
作者：
Che, Ping;Bussell, John D.;Smith, Steven M.
通讯作者：
Smith, Steven M.