N-6-methyladenosine RNA modification regulates photosynthesis during photodamage in plants
文献类型： 外文期刊
作者： Zhang, Man 1 ; Zeng, Yunping 1 ; Peng, Rong 1 ; Dong, Jie 2 ; Lan, Yelin 2 ; Duan, Sujuan 1 ; Chang, Zhenyi 1 ; Ren, Jian 2 ; Luo, Guanzheng 2 ; Liu, Bing 2 ; Ruzicka, Kamil 5 ; Zhao, Kewei 6 ; Wang, Hong-Bin 1 ; Jin, Hong-Lei 1 ;
作者机构： 1.Guangzhou Univ Chinese Med, Sch Pharmaceut Sci, Inst Med Plant Physiol & Ecol, Guangzhou 510006, Peoples R China
2.Sun Yat Sen Univ, Sch Life Sci, Guangzhou 510275, Peoples R China
3.Guangdong Acad Agr Sci, Inst Fruit Tree Res, Guangzhou 510640, Peoples R China
4.Guangdong Prov Key Lab Trop & Subtrop Fruit Tree, Key Lab South Subtrop Fruit Biol & Genet Resource, Guangzhou 510640, Peoples R China
5.Czech Acad Sci, Inst Expt Bot, Lab Hormonal Regulat Plants, Prague 16502 6, Czech Republic
6.Guangzhou Univ Chinese Med, Affiliated Hosp 3, Guangzhou Key Lab Chinese Med Res Prevent & Treat, 263 Longxi Ave, Guangzhou, Peoples R China
7.Guangzhou Univ Chinese Med, Minist Educ, Key Lab Chinese Med Resource Lingnan, Guangzhou, Peoples R China
8.Guangzhou Univ Chinese Med, State Key Lab Dampness Syndrome Chinese Med, Guangzhou, Peoples R China
期刊名称：NATURE COMMUNICATIONS （ 影响因子：16.6； 五年影响因子：17.0 ）
ISSN：
年卷期： 2022 年 13 卷 1 期
页码：
收录情况： SCI
摘要： N-6-methyladenosine (m(6)A) modification of mRNAs affects many biological processes. However, the function of m(6)A in plant photosynthesis remains unknown. Here, we demonstrate that m(6)A modification is crucial for photosynthesis during photodamage caused by high light stress in plants. The m(6)A modification levels of numerous photosynthesis-related transcripts are changed after high light stress. We determine that the Arabidopsis m(6)A writer VIRILIZER (VIR) positively regulates photosynthesis, as its genetic inactivation drastically lowers photosynthetic activity and photosystem protein abundance under high light conditions. The m(6)A levels of numerous photosynthesis-related transcripts decrease in vir mutants, extensively reducing their transcript and translation levels, as revealed by multi-omics analyses. We demonstrate that VIR associates with the transcripts of genes encoding proteins with functions related to photoprotection (such as HHL1, MPH1, and STN8) and their regulatory proteins (such as regulators of transcript stability and translation), promoting their m(6)A modification and maintaining their stability and translation efficiency. This study thus reveals an important mechanism for m(6)A-dependent maintenance of photosynthetic efficiency in plants under high light stress conditions. Efficient photoprotection is vital for the maintenance of photosynthetic efficiency during photodamage. Here, the authors reveal that m(6)A writer VIRILIZER acts as a molecular switch of photoprotection by post-transcriptional regulation in plants.
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