Perception of a bacterial quorum sensing signal activates a tripartite plant immune strategy
Abstract
Bacterial quorum sensing (QS) signals an increasing threat during pathogenesis. How plants deploy timely defenses through QS perception is poorly understood. Here, we report that Arabidopsis thaliana perceives 2’-aminoacetophenone (2’-AA), a volatile QS signal from Pseudomonas aeruginosa , and mounts a multilayered defense. This response comprises BRI1-ASSOCIATED RECEPTOR KINASE 1 (BAK1)-dependent intracellular immunity, extracellular quorum quenching through the release of acetic acid, and ecological remodeling of the root microbiome to suppress Pseudomonas . Our findings demonstrate that plants can translate the detection of a specific bacterial QS molecule into a coordinated, preemptive disease resistance strategy.
Article Details
Journal Info
Proceedings of the National Academy of Sciences
National Academy of Sciences
Authors (21)
Danxia He
School of Biological Sciences, Nanyang Technological University
Yang Zhou
Meng Li
Miao Wang
Wenjia Yu
Shanghai Center for Plant Stress Biology, Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences
Chuyang Shao
Shanghai Center for Plant Stress Biology, Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences
Sunil Kumar Singh
Shanghai Center for Plant Stress Biology, Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences
Meijiao Gu
Shanghai Center for Plant Stress Biology, Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences
Yuhua Wang
Jianlong Yuan
Xiaoxuan Wu
Shanghai Center for Plant Stress Biology, Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences
Shuai Zheng
Yi Xie
Lixian Chen
Medical Laboratory Center, Xiamen Humanity Hospital, Fujian Medical University
Rafael J. L. Morcillo
Shanghai Center for Plant Stress Biology, Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences
Yu Yang
Juan Ignacio Vílchez
Shanghai Center for Plant Stress Biology, Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences
Jin-Lin Zhang
State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University
Yansong Miao
School of Biological Sciences, Nanyang Technological University
Alberto P. Macho
Huiming Zhang
Shanghai Center for Plant Stress Biology, Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences