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Int J Syst Evol Microbiol 59 (2009), 2099-2103; DOI  10.1099/ijs.0.008698-0
© 2009 International Union of Microbiological Societies

Vibrio hangzhouensis sp. nov., isolated from sediment of the East China Sea

Xue-Wei Xu1,2, Yue-Hong Wu3, Chun-Sheng Wang1,2, Aharon Oren4 and Min Wu3

1 Laboratory of Marine Ecosystem and Biogeochemistry, State Oceanic Administration, Hangzhou 310012, PR China
2 Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, PR China
3 College of Life Sciences, Zhejiang University, Hangzhou 310058, PR China
4 Institute of Life Sciences, and the Moshe Shilo Minerva Center for Marine Biogeochemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel

Correspondence
Xue-Wei Xu
xuxw{at}sio.org.cn

Strain CN83T, a Gram-negative, aerobic, rod-shaped bacterium, was isolated from sediment of the East China Sea. The isolate was catalase- and oxidase-positive and cells were motile by means of polar flagella. The DNA G+C content was 44.9 mol%. The major fatty acids were C16 : 1{omega}7c and/or iso-C15 : 0 2-OH, C16 : 0, C18 : 1{omega}7c, C14 : 0 and C12 : 0. 16S rRNA gene sequence analysis showed that strain CN83T belonged to the genus Vibrio and had the highest sequence similarity to Vibrio agarivorans (98.4 %) and Vibrio campbellii (97.8 %). Phylogenetic analysis revealed that strain CN83T formed a monophyletic clade adjacent to the type strain of V. agarivorans. The DNA–DNA hybridization values of strain CN83T with V. agarivorans DSM 13756T and V. campbellii DSM 19270T were 44.6 and 25.5 %, respectively. On the basis of the phenotypic and genotypic data, strain CN83T represents a novel species of the genus Vibrio, for which the name Vibrio hangzhouensis sp. nov. is proposed. The type strain is CN83T (=CGMCC 1.7062T=JCM 15146T).

Abbreviations: gapA, glyceraldehyde-3-phosphate dehydrogenase; gyrB, DNA gyrase B subunit; pyrH, uridylate kinase; recA, recombinase A; rpoD, RNA polymerase {sigma}70

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain CN83T is EU082035. The accession numbers for the gyrB, gapA, rpoD, pyrH and recA gene sequences of strain CN83T and Vibrio agarivorans DSM 13756T are FJ436361–FJ436366, FJ436368, FJ463225, FJ178183 and FJ178184. The accession number for the rpoD gene sequence of Vibrio campbellii DSM 19270T is FJ436367.

Tables showing the fatty acid compositions of strain CN83T (V. hangzhouensis sp. nov.) and V. agarivorans DSM 13756T and differential characteristics of strain CN83T and related Vibrio species and phylogenetic trees based on 16S RNA gene sequences using maximum-parsimony and 16S rRNA, gyrB, gapA, pyrH, rpoD and recA gene sequences using neighbour-joining are available as supplementary material with the online version of this paper.






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Copyright © 2009 by the International Union of Microbiological Societies.