Chen Qingshuai, Zhang Jing, Li Gang
Shandong Provincial Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, Shandong, China; State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an 271018, Shandong, China.
State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an 271018, Shandong, China.
Trends Plant Sci. 2022 Apr;27(4):379-390. doi: 10.1016/j.tplants.2021.10.009. Epub 2021 Dec 2.
In eukaryotes, dynamic chromatin states are closely related to changes in gene expression. Epigenetic modifications help plants adapt to their ever-changing environment by modulating gene expression via covalent modification at specific sites on DNA or histones. Sugars provide energy, but also function as signaling molecules to control plant growth and development. Various epigenetic modifications participate in sensing and transmitting sugar signals. Here we summarize recent progress in uncovering the epigenetic mechanisms involved in sugar signal transduction, including histone acetylation and deacetylation, histone methylation and demethylation, and DNA methylation. We also highlight changes in chromatin marks when crosstalk occurs between sugar signaling and the light, temperature, and phytohormone signaling pathways, and describe potential questions and approaches for future research.
在真核生物中，动态染色质状态与基因表达的变化密切相关。表观遗传修饰通过对DNA或组蛋白特定位点的共价修饰来调节基因表达，从而帮助植物适应不断变化的环境。糖类不仅提供能量，还作为信号分子控制植物的生长和发育。多种表观遗传修饰参与糖类信号的感知和传递。在此，我们总结了在揭示糖类信号转导所涉及的表观遗传机制方面的最新进展，包括组蛋白乙酰化和去乙酰化、组蛋白甲基化和去甲基化以及DNA甲基化。我们还强调了糖类信号与光、温度和植物激素信号通路之间发生相互作用时染色质标记的变化，并描述了未来研究的潜在问题和方法。
