JA Regulates Caffeine Biosynthesis in Tea Leaf for Resistance Against Fungal Infection and Antagonises With GA to Balance the Defence-Growth Trade-Off via CsDELLA-JAZ-MYC2-MYB184-TCS1 Module.

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成果类型：

期刊论文

作者：

Zhili Ye;Ziqing Zheng;Jinsong Wang;Qinyu Zhong;Xiaoyu Mu;...

通讯作者：

Jian Zhao<&wdkj&>Penghui Li

作者机构：

[Hao Zuo; Jian Zhao] Key Laboratory of Tea Science of Ministry of Education, College of Horticulture, Hunan Agricultural University, Changsha, China

[Xiongyuan Si] Biotechnology Center, Anhui Agricultural University, Hefei, China

[Zhili Ye; Ziqing Zheng; Jinsong Wang; Qinyu Zhong; Xiaoyu Mu; Zhoufang Yuan; Yin Huang; Zainab Ghazala; Yaling Li; Xiaoyu Liang; Yujia Qi; Yanrui Zhang; Enhua Xia; Penghui Li] State Key Laboratory of Tea Plant Germplasm Innovation and Resource Utilization, Anhui Agricultural University, Hefei, China

通讯机构：

[Jian Zhao] K

[Penghui Li] S

Key Laboratory of Tea Science of Ministry of Education, College of Horticulture, Hunan Agricultural University, Changsha, China<&wdkj&>State Key Laboratory of Tea Plant Germplasm Innovation and Resource Utilization, Anhui Agricultural University, Hefei, China

语种：

英文

关键词：

Camellia sinensis;biotic stress;caffeine;phytohormone crosstalk;resistance;transcriptional regulation

期刊：

Plant Biotechnology Journal

ISSN：

1467-7644

年：

2025

DOI：

10.1111/pbi.70355

基金类别：

This work was supported by the National Natural Science Foundation of China (32002089), Anhui Agricultural University and State Key Laboratory of Tea Plant Germplasm Innovation and Resource Utilization. Zhili Ye, Ziqing Zheng and Jinsong Wang contributed equally to the work.

机构署名：

本校为第一且通讯机构

院系归属：

园艺园林学院

摘要：

Caffeine is a defensive alkaloid primarily accumulated in tea leaves to defend against pathogens. But the regulatory mechanism for caffeine biosynthesis in response to fungal infection and the trade-off between specialised metabolite and plant growth remain elusive. Here, we report that jasmonic acid (JA)-regulated CsMYB184 is the key for caffeine biosynthesis in tea leaves. Exogenous MeJA promoted caffeine biosynthesis in tea leaves and enhanced the resistance against fungal pathogens. JASMONATE ZIM-domain proteins (JAZs) interacted with CsMYB184 to repress CsMYB184 transactivation of TCS1. M...

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JA Regulates Caffeine Biosynthesis in Tea Leaf for Resistance Against Fungal Infection and Antagonises With GA to Balance the Defence-Growth Trade-Off via CsDELLA-JAZ-MYC2-MYB184-TCS1 Module.

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