Unveiling the Role of Diffusible Signal Factor-Family Quorum Sensing Signals in Regulating Behavior of Xanthomonas and Lysobacter
文献类型： 外文期刊
作者： Li, Kaihuai 1 ; Ma, Chaoyun 1 ; Xiong, Chunlan 1 ; Zhou, Xue 1 ; Mao, Yahui 4 ; Wang, Yong 1 ; Liu, Fengquan 1 ;
作者机构： 1.Guizhou Univ, Coll Agr, Dept Plant Pathol, Guiyang 550025, Peoples R China
2.Guizhou Univ, Coll Agr, Key Lab Agr Microbiol, Guiyang 550025, Peoples R China
3.Guizhou Univ, Inst Vegetable Ind Technol Res, Guiyang 550025, Peoples R China
4.Hubei Engn Univ, Coll Life Sci & Technol, Hubei Key Lab Qual Control Characterist Fruits &, Xiaogan 432000, Peoples R China
5.Jiangsu Acad Agr Sci, Inst Plant Protect, Nanjing 210014, Peoples R China
关键词： diffusible signal factor; Lysobacter enzymogenes; quorum sensing; Xanthomonas campestris
期刊名称：PHYTOPATHOLOGY （ 影响因子：3.2； 五年影响因子：3.9 ）
ISSN： 0031-949X
年卷期： 2024 年
页码：
收录情况： SCI
摘要： Diffusible signal factor (DSF) family signals represent a unique group of quorum sensing (QS) chemicals that modulate a wide range of behaviors for bacteria to adapt to different environments. However, whether DSF-mediated QS signaling acts as a public language to regulate the behavior of biocontrol and pathogenic bacteria remains unknown. In this study, we present groundbreaking evidence demonstrating that RpfF(Xc1) or RpfF(OH11) could be a conserved DSF-family signal synthase in Xanthomonas campestris or Lysobacter enzymogenes. Interestingly, we found that both RpfF(OH11) and RpfF(Xc1) have the ability to synthesize DSF and BDSF signaling molecules. DSF and BDSF positively regulate the biosynthesis of an antifungal factor (heat-stable antifungal factor, HSAF) in L. enzymogenes. Finally, we show that RpfF(Xc1) and RpfF(OH11) have similar functions in regulating HSAF production in L. enzymogenes, as well as the virulence, synthesis of virulence factors, biofilm formation, and extracellular polysaccharide production in X. campestris. These findings reveal a previously uncharacterized mechanism of DSF-mediated regulation in both biocontrol and pathogenic bacteria.
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