Epigenetic Regulation of the Phytohormone Abscisic Acid Accumulation under Dehydration Stress during Postharvest Processing of Tea (Camellia sinensis)

被引：25
|
作者：
Gu, Dachuan [1 ,2 ,3 ]
Yang, Jie [1 ,2 ]
Wu, Shuhua [1 ,2 ,4 ]
Liao, Yinyin [1 ,2 ,4 ]
Zeng, Lanting [1 ,2 ,3 ]
Yang, Ziyin [1 ,2 ,3 ,4 ]
机构：
[1] Chinese Acad Sci, South China Bot Garden, Guangdong Prov Key Lab Appl Bot, Guangzhou 510650, Peoples R China
[2] Chinese Acad Sci, Key Lab South China Agr Plant Mol Anal & Genet Im, Guangzhou 510650, Peoples R China
[3] Chinese Acad Sci, Ctr Econ Bot, Core Bot Gardens, Guangzhou 510650, Peoples R China
[4] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 2021年 / 69卷 / 03期
关键词：
ABA biosynthesis; dehydration stress; DNA methylation; histone modifications; tea processing;
D O I：
10.1021/acs.jafc.0c07220
中图分类号：
S [农业科学];
学科分类号：
09 ;
摘要：
The plant hormone abscisic acid (ABA) accumulates in tea leaves under dehydration stress during the withering process. However, the mechanism underlying ABA biosynthesis regulation remains largely unclear. In the present study, we found increased expression of ABA biosynthesis genes under dehydration stress during postharvest processing of tea. Furthermore, dehydration stress promoted ABA accumulation by increasing histone acetylation of ABA anabolism genes but by decreasing the levels of histone H3 lysine 9 dimethylation and DNA methylation of ABA biosynthesis genes. We screened candidate regulators of histone deacetylation and DNA methylation under dehydration stress. Taken together, our results indicate a role for epigenetic modifications during postharvest processing of tea.
引用
收藏
页码：1039 / 1048
页数：10
相关论文
共 16 条
  • [11] Effects of GABA on the polyphenol accumulation and antioxidant activities in tea plants (Camellia sinensis L.) under heat-stress conditions
    Ren, Taiyu
    Zheng, Pengcheng
    Zhang, Kexin
    Liao, Jieren
    Xiong, Fei
    Shen, Qiang
    Ma, Yuanchun
    Fang, Wanping
    Zhu, Xujun
    PLANT PHYSIOLOGY AND BIOCHEMISTRY, 2021, 159 : 363 - 371
  • [12] γ-Aminobutyric Acid (GABA) Accumulation in Tea (Camellia sinensis L.) through the GABA Shunt and Polyamine Degradation Pathways under Anoxia
    Liao, Jieren
    Wu, Xiayuan
    Xing, Zhiqiang
    Li, Qinghui
    Duan, Yu
    Fang, Wanping
    Zhu, Xujun
    JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 2017, 65 (14) : 3013 - 3018
  • [13] Expression patterns of alpha-amylase and beta-amylase genes provide insights into the molecular mechanisms underlying the responses of tea plants (Camellia sinensis) to stress and postharvest processing treatments
    Chuan Yue
    Hongli Cao
    Hongzheng Lin
    Juan Hu
    Yijun Ye
    Jiamin Li
    Zhilong Hao
    Xinyuan Hao
    Yun Sun
    Yajun Yang
    Xinchao Wang
    Planta, 2019, 250 : 281 - 298
  • [14] Expression patterns of alpha-amylase and beta-amylase genes provide insights into the molecular mechanisms underlying the responses of tea plants (Camellia sinensis) to stress and postharvest processing treatments
    Yue, Chuan
    Cao, Hongli
    Lin, Hongzheng
    Hu, Juan
    Ye, Yijun
    Li, Jiamin
    Hao, Zhilong
    Hao, Xinyuan
    Sun, Yun
    Yang, Yajun
    Wang, Xinchao
    PLANTA, 2019, 250 (01) : 281 - 298
  • [15] Genome-wide investigation and transcriptional analysis of cytosine-5 DNA methyltransferase and DNA demethylase gene families in tea plant (Camellia sinensis) under abiotic stress and withering processing
    Zhu, Chen
    Zhang, Shuting
    Zhou, Chengzhe
    Chen, Lan
    Fu, Haifeng
    Li, Xiaozhen
    Lin, Yuling
    Lai, Zhongxiong
    Guo, Yuqiong
    PEERJ, 2020, 8
  • [16] Abscisic acid-induced nitric oxide and proline accumulation in independent pathways under water-deficit stress during seedling establishment in Medicago truncatula
    Planchet, Elisabeth
    Verdu, Isabelle
    Delahaie, Julien
    Cukier, Caroline
    Girard, Clement
    Morere-Le Paven, Marie-Christine
    Limami, Anis M.
    JOURNAL OF EXPERIMENTAL BOTANY, 2014, 65 (08) : 2161 - 2170
12