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

第一作者： Hu, Zhangjian

作者： Hu, Zhangjian;Ma, Qiaomei;Lei, Cui;Zheng, Chenfei;Li, Jianxin;Mao, Zhuo;Mei, Yuyang;Yu, Jingquan;Shi, Kai;Foyer, Christine H.;Choi, Hyong Woo;Klessig, Daniel F.;Choi, Hyong Woo;Zuo, Jinhua

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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

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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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