Recent Advances in Studies of Genomic DNA Methylation and Its Involvement in Regulating Drought Stress Response in Crops

被引:3
作者
Fan, Youfang [1 ]
Sun, Chao [1 ]
Yan, Kan [2 ]
Li, Pengcheng [1 ]
Hein, Ingo [3 ]
Gilroy, Eleanor M. [3 ]
Kear, Philip [4 ]
Bi, Zhenzhen [1 ]
Yao, Panfeng [1 ]
Liu, Zhen [1 ]
Liu, Yuhui [1 ]
Bai, Jiangping [1 ]
机构
[1] Gansu Agr Univ, Coll Agron, State Key Lab Aridland Crop Sci, Lanzhou 730070, Peoples R China
[2] Lanzhou Jiaotong Univ, Sch Biol & Pharmaceut Engn, Lanzhou 730070, Peoples R China
[3] James Hutton Inst, Dundee DD2 5DA, Scotland
[4] CIP China Ctr Asia Pacific CCCAP, Int Potato Ctr CIP, Beijing 102199, Peoples R China
来源
PLANTS-BASEL | 2024年 / 13卷 / 10期
基金
中国国家自然科学基金;
关键词
plant; epigenetics; DNA methylation; drought stress; mechanism; research advances; ARABIDOPSIS; DEMETHYLATION; GENE; METHYLTRANSFERASE; METHYLOME; MAIZE; RICE; OSMOREGULATION; MECHANISM; PROTEINS;
D O I
10.3390/plants13101400
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
As global arid conditions worsen and groundwater resources diminish, drought stress has emerged as a critical impediment to plant growth and development globally, notably causing declines in crop yields and even the extinction of certain cultivated species. Numerous studies on drought resistance have demonstrated that DNA methylation dynamically interacts with plant responses to drought stress by modulating gene expression and developmental processes. However, the precise mechanisms underlying these interactions remain elusive. This article consolidates the latest research on the role of DNA methylation in plant responses to drought stress across various species, focusing on methods of methylation detection, mechanisms of methylation pattern alteration (including DNA de novo methylation, DNA maintenance methylation, and DNA demethylation), and overall responses to drought conditions. While many studies have observed significant shifts in genome-wide or gene promoter methylation levels in drought-stressed plants, the identification of specific genes and pathways involved remains limited. This review aims to furnish a reference for detailed research into plant responses to drought stress through epigenetic approaches, striving to identify drought resistance genes regulated by DNA methylation, specific signaling pathways, and their molecular mechanisms of action.
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页数:21
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