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Stomatal closure induced by hydrogen-rich water is dependent on GPA1 in Arabidopsis thaliana

文献类型： 外文期刊

作者： Wang, Zirui 1 ; Khan, Dawood 1 ; Li, Leilin 1 ; Zhang, Jing 3 ; Rengel, Zed 4 ; Zhang, Baige 2 ; Chen, Qi 1 ;

作者机构： 1.Kunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Peoples R China

2.Guangdong Acad Agr Sci, Vegetable Res Inst, Key Lab New Technol Res Vegetable, Guangzhou 510640, Peoples R China

3.Foshan Inst Agr Sci, Foshan 528145, Peoples R China

4.Univ Western Australia, UWA Sch Agr & Environm, 35 Stirling Highway, Perth, WA 6009, Australia

5.Inst Adriat Crops & Karst Reclamat, Split 21000, Croatia

关键词： Hydrogen-rich water; Stomatal closure; GPA1; Arabidopsis thaliana

期刊名称：PLANT PHYSIOLOGY AND BIOCHEMISTRY （ 影响因子：5.437； 五年影响因子：5.731 ）

ISSN： 0981-9428

年卷期： 2022 年 183 卷

页码：

收录情况： SCI

摘要： Hydrogen (H2) is a new signaling molecule that regulates stomatal closure via stimulating the generation of reactive oxygen species (ROS) and nitric oxide (NO) in Arabidopsis thaliana. GPA1 is the sole heterotrimeric G protein canonical alpha subunit found in Arabidopsis genome and functions in stomatal closure. Here, we estimated a possible role of Arabidopsis GPA1 in hydrogen-rich water (HRW)-induced stomatal closure. Our data indicated that HRW induced significant stomatal closure as well as the generation of ROS and NO in the Col-0 guard cells. However, the production of ROS and NO and stomatal closure induced by HRW were absent in the gpa1-4 mutant lacking the expression of AtGPA1. By contrast, overexpression of AtGPA1 in gpa1-4 (AtGPA1-HA/gpa1-4) restored stomatal closure and the generation of NO and ROS in the presence of HRW. Taken together, our results suggest that GPA1 is necessary for HRW-induced stomatal closure in Arabidopsis.

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