Two bacterial strains (DY05^T and 47666-1) were isolated in Queensland, Australia, from diseased cultured crustaceans Panulirus ornatus and Penaeus monodon, respectively. On the basis of 16S rRNA gene sequence identity, the strains were shown to belong to the Harveyi clade of the genus Vibrio. Multilocus sequence analysis using five housekeeping genes (rpoA, pyrH, topA, ftsZ and mreB) showed that the strains form a monophyletic group with 94.4% concatenated sequence identity to the closest species. DNA–DNA hybridization experiments showed that strains DY05^T and 47666-1 had 76% DNA similarity to each other, but <70% to their closest neighbours Vibrio harveyi LMG 4044^T (≤55%), Vibrio campbellii LMG 11216^T (≤52%) and Vibrio rotiferianus LMG 21460^T (≤46%). Strains DY05^T and 47666-1 could be differentiated from their relatives on the basis of several phenotypic characteristics. The major fatty acids were C_15:0 iso 2-OH and/or C_16:1ω7, C_16:0, C_18:1ω7 and C_14:0. Based on the polyphasic evidence presented here, it can be concluded that strains DY05^T and 47666-1 belong to the same novel species of the genus Vibrio, for which the name Vibrio owensii sp. nov. is proposed. The type strain is DY05^T (=JCM 16517^T=ACM 5300^T).

Item Type:	Refereed Article
Keywords:	Vibrio owensii, Vibrio harveyi, Vibrio campbellii, MLSA, crustacean, pathogen
Research Division:	Biological Sciences
Research Group:	Microbiology
Research Field:	Bacteriology
Objective Division:	Animal Production and Animal Primary Products
Objective Group:	Fisheries - Aquaculture
Objective Field:	Aquaculture Crustaceans (excl. Rock Lobster and Prawns)
UTAS Author:	Goulden, EF (Dr Evan Goulden)
ID Code:	94732
Year Published:	2010
Web of Science® Times Cited:	61
Deposited By:	Sustainable Marine Research Collaboration
Deposited On:	2014-09-16
Last Modified:	2014-10-08
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