J Integr Plant Biol ›› 2022, Vol. 64 ›› Issue (6): 1135-1139.DOI: 10.1111/jipb.13260

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  • 收稿日期:2022-03-17 接受日期:2022-03-31 出版日期:2022-06-01 发布日期:2022-06-15

Bacterial diacetyl suppresses abiotic stress-induced senescence in Arabidopsis

Sunil K. Singh1†, Yazhou Sun1,2†, Yu Yang1†, Ziwei Zuo1,2, Xiaoxuan Wu1,2, Chuyang Shao1,2, Li Peng1, Paul W. Paré3 and Huiming Zhang1*   

  1. 1 Shanghai Center for Plant Stress Biology, Center for Excellence in Molecular Plant Sciences, the Chinese Academy of Sciences, Shanghai 201602, China
    2 University of Chinese Academy of Sciences, Beijing 100049, China
    3 Department of Chemistry and Biochemistry, Texas Tech University, Lubbock 79409, Texas, USA

    † These authors contributed equally to this work.
    * Correspondence: Huiming Zhang (hmzhang@psc.ac.cn)
  • Received:2022-03-17 Accepted:2022-03-31 Online:2022-06-01 Published:2022-06-15

Abstract:

Premature plant senescence induced by abiotic stresses is a major cause of agricultural losses worldwide. Tools for suppressing stress-induced plant senescence are limited. Here, we report that diacetyl, a natural compound emitted by the plant-beneficial bacterium Bacillus amyloliquefaciens, suppresses abscisic acid -mediated foliar senescence in Arabidopsis thaliana under various abiotic stress conditions. Our results establish diacetyl as an effective protector against stress-induced plant senescence and reveal a molecular mechanism for bacteria-enhanced plant stress resistance.

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