Volume 18 Issue 5
Oct.  2022
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WANG Qian, DENG Yiqin, SUN Chengwen, LIN Ziyang, SU Wenxiao, LIU Mengyao, CHENG Changhong, GUO Zhixun, FENG Juan. Responses of important virulence factors of Aeromonas veronii to environmental conditions[J]. South China Fisheries Science, 2022, 18(5): 74-80. DOI: 10.12131/20210273
Citation: WANG Qian, DENG Yiqin, SUN Chengwen, LIN Ziyang, SU Wenxiao, LIU Mengyao, CHENG Changhong, GUO Zhixun, FENG Juan. Responses of important virulence factors of Aeromonas veronii to environmental conditions[J]. South China Fisheries Science, 2022, 18(5): 74-80. DOI: 10.12131/20210273
shu

Responses of important virulence factors of Aeromonas veronii to environmental conditions

  • 1.

    Tianjin Agricultural University, TianJin 300392, China

  • 2.

    South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences/Key Laboratory of South China Sea Fishery Resources Development & Utilization, Ministry of Agriculture and Rural Affairs, Guangzhou 510300, China

  • 3.

    Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, China

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  • Received Date: September 22, 2021
  • Revised Date: February 20, 2022
  • Accepted Date: February 23, 2022
  • Available Online: March 06, 2022
    Graphical Abstract
    • Abstract
  • As important pathogenic factors of Aeromonas veronii, flagellin, quorum sensing and Type III secretion system (T3SS) are closely related to their pathogenicity and regulated by various environmental conditions. In order to study the effect of variation in external environmental factors on the pathogenic factors of A. veronii, we used the ascF, fliE and luxR factors of A. veronii as objects by real-time PCR method. The response of ascF, fliE and luxR genes to environmental factors such as temperature, pH, rotating speed and ions were explored at the transcription level. The results show that the three genes of A. veronii had a positive response to acidic environment (pH 6.5−7.0), low and medium speed (150−210 r·min−1), Zn2+ and Mg2+. The response patterns of the three genes of the two strains of A. veronii with different molecular types were different, indicating that the pathogenic mechanisms of A. veronii might be different. Besides, the important virulence factors of A. veronii were regulated by environmental conditions and showed different regular change. The results provide references for further research on the pathogenesis of A. veronii.
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    • References (37)
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