The role of rpoS in the regulation of Vibrio alginolyticus virulence and the response to diverse stresses

© 2019 John Wiley & Sons Ltd.

Bibliographische Detailangaben
Veröffentlicht in:Journal of fish diseases. - 1998. - 42(2019), 5 vom: 05. Mai, Seite 703-712
1. Verfasser: Huang, Lixing (VerfasserIn)
Weitere Verfasser: Guo, Lina, Xu, Xiaojin, Qin, Yingxue, Zhao, Lingmin, Su, Yongquan, Yan, Qingpi
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2019
Zugriff auf das übergeordnete Werk:Journal of fish diseases
Schlagworte:Journal Article Vibrio alginolyticus rpoS adhesion virulence Bacterial Proteins Sigma Factor sigma factor KatF protein, Bacteria
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520 |a Vibrio alginolyticus is a leading aquatic pathogen, causing huge losses to aquaculture. rpoS has been proven to play a variety of important roles in stress response and virulence in several bacteria. In our previous study, upon treatment with Cu2+ , Pb2+ , Hg2+ and low pH, the expression levels of rpoS were downregulated as assessed by RNA-seq, while impaired adhesion ability was observed, indicating that rpoS might play roles in the regulation of adhesion. In the present study, the RNAi technology was used to knockdown rpoS in V. alginolyticus. In comparison with wild-type V. alginolyticus, RNAi-treated bacteria showed significantly impaired abilities of adhesion, growth, haemolytic, biofilm production, movement and virulence. Meanwhile, alterations of temperature, salinity, pH and starvation starkly affected rpoS expression. The present data suggested that rpoS is a critical regulator of virulence in V. alginolyticus; in addition, rpoS regulates bacterial adhesion in response to temperature, pH and nutrient content changes. These are helpful to explore its pathogenic mechanism and provide reference for disease control 
650 4 |a Journal Article 
650 4 |a Vibrio alginolyticus 
650 4 |a rpoS 
650 4 |a adhesion 
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650 7 |a sigma factor KatF protein, Bacteria  |2 NLM 
700 1 |a Guo, Lina  |e verfasserin  |4 aut 
700 1 |a Xu, Xiaojin  |e verfasserin  |4 aut 
700 1 |a Qin, Yingxue  |e verfasserin  |4 aut 
700 1 |a Zhao, Lingmin  |e verfasserin  |4 aut 
700 1 |a Su, Yongquan  |e verfasserin  |4 aut 
700 1 |a Yan, Qingpi  |e verfasserin  |4 aut 
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