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Int J Syst Evol Microbiol 59 (2009), 545-549; DOI  10.1099/ijs.0.004531-0
© 2009 International Union of Microbiological Societies

Microbulbifer donghaiensis sp. nov., isolated from marine sediment of the East China Sea

Chun-Sheng Wang1,2, Yu Wang3, Xue-Wei Xu1,2, Dong-Sheng Zhang1,2, Yue-Hong Wu3 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

Correspondence
Chun-Sheng Wang
wangsio{at}sio.org.cn

A Gram-negative, aerobic, neutrophilic, rod-shaped bacterium, designated strain CN85T, was isolated from a sediment sample collected from the East China Sea and was subjected to a polyphasic taxonomic characterization. This isolate grew in the presence of 0.5–6.0 % (w/v) NaCl and at 20–40 °C; optimum growth was observed with 3 % (w/v) NaCl and at 35 °C. Chemotaxonomic analysis showed that Q-8 was the predominant respiratory quinone and that iso-C15 : 0, iso-C11 : 0 3-OH, iso-C17 : 1{omega}9c, iso-C17 : 0, iso-C11 : 0 and C16 : 0 were the major fatty acids. The G+C content of the genomic DNA was 57.8 mol%. On the basis of 16S rRNA gene sequence analysis, the isolate was affiliated to the genus Microbulbifer. Strain CN85T exhibited most phylogenetic affinity with respect to the type strain of Microbulbifer maritimus (97.0 % sequence similarity) and showed less than 97 % sequence similarity with respect to other described Microbulbifer species with known 16S rRNA gene sequences. The DNA–DNA hybridization between strain CN85T and M. maritimus JCM 12187T was 44 %. On the basis of phenotypic and genotypic data, strain CN85T represents a novel species of the genus Microbulbifer, for which the name Microbulbifer donghaiensis sp. nov. is proposed. The type strain is CN85T (=CGMCC 1.7063T =JCM 15145T).

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain CN85T is EU365694.

Fatty acid compositions and phenotypic characteristics of strain CN85T and related strains are provided in supplementary tables available with the online version of this paper.






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Copyright © 2009 by the International Union of Microbiological Societies.