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Int J Syst Evol Microbiol 59 (2009), 1143-1147; DOI  10.1099/ijs.0.000901-0
© 2009 International Union of Microbiological Societies

Donghicola xiamenensis sp. nov., a marine bacterium isolated from seawater of the Taiwan Strait in China

Tianfeng Tan, Baojiang Wang and Zongze Shao

Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, PR China

Correspondence
Zongze Shao
shaozz{at}163.com

A Gram-negative, ovoid rod-shaped bacterium that lacked bacteriochlorophyll a, designated strain Y-2T, was isolated from seawater of the Taiwan Strait, China. The strain was oxidase- and catalase-positive, and reduced nitrate to nitrite. Optimal growth occurred at around pH 7.0 and 25 °C in the presence of 1–3 % (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain Y-2T belonged to the class Alphaproteobacteria and formed a coherent cluster with Donghicola eburneus SW-277T (96.2 % sequence similarity). The major whole-cell fatty acid was C18 : 1{omega}7c (75.42 %). Other characteristic fatty acids were C18 : 0 (9.16 %) and C16 : 0 (7.32 %). The DNA G+C content of strain Y-2T was 62.4 mol%. Therefore, based on phenotypic properties, phylogeny and genomic data, strain Y-2T should be placed in the genus Donghicola as representing a novel species, for which the name Donghicola xiamenensis sp. nov. is proposed. The type strain is Y-2T (=MCCC 1A00107T=LMG 24574T=CGMCC 1.7081T).

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain Y-2T is DQ120728.

Transmission electron micrographs of negatively stained cells of strain Y-2T and a table of the cellular fatty acid contents of strain Y-2T, Donghicola eburneus SW-277T and Salipiger mucosus A3T 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.