Histone deacetylase CsHDA6 mediates the regulated formation of the anti-insect metabolite alpha-farnesene in tea (Camellia sinensis)
文献类型： 外文期刊
作者： Wu, Shuhua 1 ; Yang, Yuhua 1 ; Chen, Jiaming 1 ; Li, Jianlong 5 ; Jian, Guotai 1 ; Yang, Jie 1 ; Mao, Kaiquan 1 ; Zeng, Lanting 1 ; Gu, Dachuan 1 ;
作者机构： 1.Chinese Acad Sci, Guangdong Prov Key Lab Appl Bot, South China Bot Garden, 723 Xingke Rd, Guangzhou 510650, Peoples R China
2.Chinese Acad Sci, Key Lab South China Agr Plant Mol Anal & Genet Imp, South China Bot Garden, 723 Xingke Rd, Guangzhou 510650, Peoples R China
3.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
4.South China Natl Bot Garden, 723 Xingke Rd, Guangzhou 510650, Peoples R China
5.Guangdong Acad Agr Sci, Tea Res Inst, 6 Dafeng Rd, Guangzhou 510640, Peoples R China
6.Chinese Acad Sci, Ctr Econ Bot, Core Bot Gardens, 723 Xingke Rd, Guangzhou 510650, Peoples R China
关键词： Camellia sinensis; Epigenetic regulation; ?-farnesene; Histone deacetylase; Insect; Wounding stress
期刊名称：PLANT SCIENCE （ 影响因子：5.363； 五年影响因子：5.454 ）
ISSN： 0168-9452
年卷期： 2023 年 326 卷
页码：
收录情况： SCI
摘要： alpha-Farnesene accumulated in tea plants following infestations by most insects, and mechanical wounding is the common factor. However, the specific mechanism underlying the wounding-regulated accumulation of alpha-far-nesene in tea plants remains unclear. In this study, we observed that histone deacetylase inhibitor treatment induced the accumulation of alpha-farnesene. The histone deacetylase CsHDA6 interacted directly with CsMYC2, which was an important transcription factor in the jasmonic acid (JA) pathway, and co-regulated the expression of the key alpha-farnesene synthesis gene CsAFS. Wounding caused by insect infestation affected CsHDA6 production at the transcript and protein levels, while also inhibited the binding of CsHDA6 to the CsAFS promoter. The resulting increased acetylation of histones H3/H4 in CsAFS enhanced the expression of CsAFS and the accu-mulation of alpha-farnesene. In conclusion, our study demonstrated the effect of histone acetylation on the pro-duction of tea plant HIPVs and revealed the importance of the CsHDA6-CsMYC2 transcriptional regulatory module.
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