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Updated: Jul 26, 2025

Quantifying Vibrio cholerae Colonization and Diarrhea in the Adult Zebrafish Model
Published on: July 12, 2018
Vibrio intestinalis sp. nov., isolated from intestine of seahorse
Libo Yu1, Shiping Wei2, Zhidong Zhou3
1Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources of PR China, State Key Laboratory Breeding Base of Marine Genetic Resource; Fujian Key Laboratory of Marine Genetic Resources, Xiamen 361005, PR China.
Abstract:
A novel Gram-stain-negative, catalase- and oxidase-positive, facultatively anaerobic, and rod-shaped motile bacterial strain, designated as YLB-11T, was isolated from seahorse intestine. The 16S rRNA gene sequencing analysis showed that YLB-11T was most closely related Vibrio mytili LMG 19157T (98.9 % nucleotide sequence identity). Phylogenetic analysis placed strain YLB-11T within the genus Vibrio. The major cellular fatty acids were summed feature 3 (C16: 1 ω6c/C16 : 1 ω7c, 36.4 %), C16 : 0 (19.1 %) and summed feature 8 (C18:1 ω6c/C18:1 ω7c, 12.3 %). The DNA G+C content of YLB-11T was 44.7 mol %. The in silico DNA-DNA hybridization and average nucleotide identity values for whole-genome sequence comparisons between YLB-11T and related species were clearly below the thresholds used for the delineation of a novel species. Therefore, YLB-11T is considered to represent novel species of the genus Vibrio, for which the name Vibrio intestinalis sp. nov. is proposed. The type strain is YLB-11T (=MCCC 1A17441T=KCTC 72604T).
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