HbCOI1 perceives jasmonate to trigger signal transduction in Hevea brasiliensis

文献类型： 外文期刊

第一作者： Chen, Juan

作者： Chen, Juan;Yang, Haitao;Ma, Sui;Yao, Ruifeng;Yan, Jianbin;Xie, Daoxin;Ma, Sui;Huang, Xi;Yao, Ruifeng;Yan, Jianbin

作者机构：

关键词： HbCOI1; HbJAZ; Hevea brasiliensis; jasmonate; receptor

期刊名称：TREE PHYSIOLOGY （ 影响因子：3.655； 五年影响因子：4.33 ）

ISSN： 0829-318X

年卷期： 2021 年 41 卷 3 期

页码：

收录情况： SCI

摘要： Natural rubber, a strategically essential raw material used in manufacturing throughout the world, is produced from coagulated and refined latex of rubber tree (Hevea brasiliensis). It is known that phytohormone jasmonate (JA) plays an essential role in regulating latex biosynthesis. However, it is unclear how the JA signal is sensed in a rubber tree. Here, we showed that H. brasiliensis CORONATINE-INSENSITIVE 1 (HbCOI1) acts as a receptor that perceives JA to recruit H. brasiliensis JASMONATE ZIM DOMAIN1 (HbJAZ1) for signal transduction. We found that HbCOI1 restores male sterility and JA responses of the coi1-1 mutant in Arabidopsis. The identification of a JA receptor in the rubber tree is essential for elucidating the molecular mechanisms underlying JA-regulated latex biosynthesis. Our results elucidate the mechanism of JA perception in H. brasiliensis and also provide an efficient strategy to identify JA receptors in woody plants.

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