Zheng Yue-Qin, Wang Qiong-Li, Chen Dao-Qian, Chen Dong-Mei, Zeng Ren-Sen, Song Yuan-Yuan
Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China.
Ministry of Education Key Laboratory for Genetics, Breeding and Multiple Utilization of Crop, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
Ying Yong Sheng Tai Xue Bao. 2022 Mar;33(3):844-854. doi: 10.13287/j.1001-9332.202202.039.
Plants, grown in the immobile soils, have evolved various strategies in response to environmental stresses, including the "stress memory" and "defense priming" mechanisms. The environmental stresses cannot immediately change the DNA base sequence in plants in the short-term. Therefore, epigenetic inheritance is a key mechanism for stress memory and defense priming. In particular, histone modification is considered to be the most important mechanism, which offers the possibility of stress memory. We summarized research advances in plant histone modifications involved in stress memory and defense priming under biotic and abiotic stresses, and proposed pro-blems in the field and the focus and directions in the future research. In-depth understanding of the relationship between histone modification and environmental stresses would facilitate the quick adaptation of plants to harsh environments, and provide theoretical and technical guidance for plant phenotype shaping, organ regeneration, and crop genetic improvement.
生长在固定土壤中的植物已经进化出各种应对环境胁迫的策略，包括“胁迫记忆”和“防御引发”机制。环境胁迫在短期内无法立即改变植物的DNA碱基序列。因此，表观遗传继承是胁迫记忆和防御引发的关键机制。特别是，组蛋白修饰被认为是最重要的机制，它提供了胁迫记忆的可能性。我们总结了植物组蛋白修饰在生物和非生物胁迫下参与胁迫记忆和防御引发的研究进展，并提出了该领域存在的问题以及未来研究的重点和方向。深入了解组蛋白修饰与环境胁迫之间的关系将有助于植物快速适应恶劣环境，并为植物表型塑造、器官再生和作物遗传改良提供理论和技术指导。
