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High CO2- and pathogen-driven expression of the carbonic anhydrase beta CA3 confers basal immunity in tomato

文献类型： 外文期刊

作者： Hu, Zhangjian 1 ; Ma, Qiaomei 1 ; Foyer, Christine H. 2 ; Lei, Cui 1 ; Choi, Hyong Woo 3 ; Zheng, Chenfei 1 ; Li, Jian 1 ;

作者机构： 1.Zhejiang Univ, Dept Hort, 866 Yuhangtang Rd, Hangzhou 310058, Peoples R China

2.Univ Birmingham, Coll Life & Environm Sci, Sch Biosci, Edgbaston B15 2TT, England

3.Boyce Thompson Inst Plant Res, 533 Tower Rd, Ithaca, NY 14853 USA

4.Andong Natl Univ, Dept Plant Med, Andong 36729, South Korea

5.Natl Engn Res Ctr Vegetables, Beijing 100097, Peoples R China

关键词： Pseudomonas syringae pv; tomato DC3000; β CA3; carbon dioxide; NAC43; GRACE1; plant basal immunity; salicylic acid; tomato (Solanum lycopersicum)

期刊名称：NEW PHYTOLOGIST （ 影响因子：10.151； 五年影响因子：10.475 ）

ISSN： 0028-646X

年卷期： 2021 年 229 卷 5 期

页码：

收录情况： SCI

摘要： Atmospheric CO2 concentrations exert a strong influence on the susceptibility of plants to pathogens. However, the mechanisms involved in the CO2-dependent regulation of pathogen resistance are largely unknown. Here we show that the expression of tomato (Solanum lycopersicum) beta-CARBONIC ANHYDRASE 3 (beta CA3) is induced by the virulent pathogen Pseudomonas syringae pv. tomato DC3000. The role of beta CA3 in the high CO2-mediated response in tomato and two other Solanaceae crops is distinct from that in Arabidopsis thaliana. Using beta CA3 knock-out and over-expression plants, we demonstrate that beta CA3 plays a positive role in the activation of basal immunity, particularly under high CO2. beta CA3 is transcriptionally activated by the transcription factor NAC43 and is also post-translationally regulated by the receptor-like kinase GRACE1. The beta CA3 pathway of basal immunity is independent on stomatal- and salicylic-acid-dependent regulation. Global transcriptome analysis and cell wall metabolite measurement implicate cell wall metabolism/integrity in beta CA3-mediated basal immunity under both CO2 conditions. These data not only highlight the importance of beta CA3 in plant basal immunity under high CO2 in a well-studied susceptible crop-pathogen system, but they also point to new targets for disease management strategies in a changing climate.

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