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ZntR modulates zinc homeostasis, oxidative stress resistance, and virulence of Vibrio parahaemolyticus
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Mengxian WANG, Yimeng ZHAI, Jun QIU, Zhengzhong XU, Xiang CHEN, Chengkun ZHENG*, Xin'an JIAO*
Acta Microbiologica Sinica | 2024, 64(12) : 4774 - 4788
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Acta Microbiologica Sinica | 2024, 64(12): 4774-4788
Research Articles
ZntR modulates zinc homeostasis, oxidative stress resistance, and virulence of Vibrio parahaemolyticus
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Mengxian WANG, Yimeng ZHAI, Jun QIU, Zhengzhong XU, Xiang CHEN, Chengkun ZHENG*, Xin'an JIAO*
Affiliations
  • College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, Jiangsu, China
Published: 2024-09-26 doi: 10.13343/j.cnki.wsxb.20240274
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[Objective] To explore the regulatory role of the metalloregulator ZntR in metal homeostasis and clarify the effects of ZntR on the oxidative stress resistance and virulence of Vibrio parahemolyticus. [Methods] Growth curve analysis and intracellular metal content quantification were performed to investigate the regulatory effect of ZntR on the metal homeostasis in V. parahaemolyticus. The effects of ZntR on the oxidative stress resistance and virulence of V. parahaemolyticus were explored by the growth curve analysis and the competitive infection assay in the zebrafish model, respectively. The genes regulated by ZntR were identified by RNA sequencing. [Results] The zntR-deleted strain (ΔzntR) exhibited growth defects under zinc, nickel excess and iron restriction conditions, and the growth defects were related to zinc homeostasis disturbance. The overexpression of zntA in ΔzntR promoted the growth under zinc, nickel excess and iron restriction conditions. In the case of zinc excess, ΔzntR demonstrated weakened resistance to H2O2-induced oxidative stress. The virulence of ΔzntR was attenuated in a competitive infection assay in the zebrafish model. RNA sequencing revealed that ZntR regulated the expression of several virulence genes. [Conclusion] ZntR modulates zinc homeostasis and improves oxidative stress resistance and virulence of V. parahaemolyticus.

ZntR  /  Vibrio parahaemolyticus  /  zinc homeostasis  /  oxidative stress resistance  /  virulence
Mengxian WANG, Yimeng ZHAI, Jun QIU, Zhengzhong XU, Xiang CHEN, Chengkun ZHENG, Xin'an JIAO. ZntR modulates zinc homeostasis, oxidative stress resistance, and virulence of Vibrio parahaemolyticus[J]. Acta Microbiologica Sinica, 2024 , 64 (12) : 4774 -4788 . DOI: 10.13343/j.cnki.wsxb.20240274
  • National Natural Science Foundation of China(31802210)
  • Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD)
Year 2024 volume 64 Issue 12
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Article Info
doi: 10.13343/j.cnki.wsxb.20240274
  • Receive Date:2024-04-30
  • Online Date:2026-03-21
  • Published:2024-09-26
Article Data
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History
  • Received:2024-04-30
  • Accepted:2024-09-24
Funding
National Natural Science Foundation of China(31802210)
Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD)
Affiliations
    College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, Jiangsu, China

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*E-mail: ZHENG Chengkun:
E-mail: JIAO Xin'an:
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表12种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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