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Vibrio chanodichtyis sp. nov., isolated from the intestine of swordfish Chanodichthys dabryi

文献类型: 外文期刊

作者: Wu, Ningning 1 ; Liu, Le 2 ; Liu, Kai 4 ; Shao, Jiahui 2 ; Nie, Zhijuan 4 ; He, Jian 1 ; Shen, Qirong 2 ;

作者机构: 1.Nanjing Agr Univ, Coll Life Sci, Key Lab Agr Environm Microbiol, Minist Agr, Nanjing 210095, Jiangsu, Peoples R China

2.Nanjing Agr Univ, Coll Resources & Environm Sci, Nanjing 210095, Jiangsu, Peoples R China

3.Agr Microbial Resources Protect & Germplasm Innova, Nanjing 210095, Jiangsu, Peoples R China

4.Chinese Acad Fishery Sci, Freshwater Fisheries Res Ctr, Key Lab Freshwater Fisheries & Germplasm Resources, Minist Agr, Wuxi 214081, Peoples R China

关键词: 16S rRNA gene; Chanodichthys dabryi; digital DNA-DNA hybridization; polyphasic taxonomy; Vibrio chanodichtyis sp. nov.

期刊名称:INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY ( 影响因子:2.8; 五年影响因子:2.6 )

ISSN: 1466-5026

年卷期: 2023 年 73 卷 11 期

页码:

收录情况: SCI

摘要: A Gram- stain- negative, facultatively anaerobic, motile, curved- rod- shaped flagellated bacterium, designated DSL- 7T, was isolated from the intestine of Chanodichthys dabryi in the Yangtze river, PR China. The strain grew optimally in tryptone soy broth medium at 37 degrees C, pH 7.0 and with 1 % (w/v) NaCl. Strain DSL- 7T showed less than 96.2 % 16S rRNA gene sequence similarity to type strains of the genus Vibrio. Phylogenetic analysis based on genomes indicated that strain DSL- 7T belonged to the genus Vibrio and formed a subclade with Vibrio mimicus NCTC 11435T, Vibrio metoecus OP3HT, Vibrio cholerae ATCC 14035T, Vibrio albensis ATCC14547T, Vibrio paracholerae OP3HEDC-792T and Vibrio tarriae 2521-89T. The average nucleotide identity (ANI) and in digital DNA-DNA hybridization (dDDH) values between DSL- 7T and closely related type strains were below the accepted threshold to delineate a new species of 95 and 70 %, respectively. The major cellular fatty acids were summed feature 3 (C16:1 w7c and/or C16: 1 w6c), C16:0, summed feature 8 (C18:1 w7c and/or C18: 1 w6c) and C14:0. The genomic DNA G+C content was 47.6 mol%. Based on the phenotypic, chemotaxonomic, phylogenetic and genomic data, strain DSL- 7T represents a novel species of the genus Vibrio, for which the name Vibrio chanodichtyis sp. nov. is proposed, with strain DSL- 7T (=KCTC 92851T=CCTCC AB 2022396T) as the type strain.

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