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Int J Syst Evol Microbiol 57 (2007), 1625-1629; DOI  10.1099/ijs.0.65020-0
© 2007 International Union of Microbiological Societies

Oceanicola marinus sp. nov., a marine alphaproteobacterium isolated from seawater collected off Taiwan

Kuan-Yin Lin1, Shih-Yi Sheu2, Poh-Shing Chang3, Jang-Cheon Cho4 and Wen-Ming Chen1

1 Laboratory of Microbiology, Department of Seafood Science, National Kaohsiung Marine University, Kaohsiung 811, Taiwan
2 Department of Marine Biotechnology, National Kaohsiung Marine University, Kaohsiung, Taiwan
3 Department of Aquaculture, National Kaohsiung Marine University, Kaohsiung, Taiwan
4 Division of Biology and Ocean Sciences, Inha University, Yonghyun Dong, Incheon 402-751, Republic of Korea

Correspondence
Wen-Ming Chen
p62365{at}ms28.hinet.net

A short-rod-shaped, Gram-negative, non-motile bacterial strain, designated AZO-CT, was isolated from a sample of seawater collected from the Eluanbi coast of Pingtung County in southern Taiwan and was characterized by using a polyphasic approach. Phylogenetic analyses based on 16S rRNA gene sequences showed that the strain formed a monophyletic branch at the periphery of the evolutionary radiation occupied by the genus Oceanicola in the order Rhodobacterales of the Alphaproteobacteria. The closest neighbours were Oceanicola batsensis HTCC2597T (95.6 % similarity), Oceanicola nanhaiensis SS011B1-20T (94.5 %) and Oceanicola granulosus HTCC2516T (94.0 %). The predominant fatty acid was 18 : 1{omega}7c (49.1 %), and significant amounts of 19 : 0 cyclo (24.6 %) and 16 : 0 (14.7 %) were present. The DNA–DNA relatedness of the strain with respect to recognized species of the genus Oceanicola was less than 70 %. The isolate was also distinguishable from members of the genus Oceanicola on the basis of phenotypic and biochemical characteristics. It is evident from the genotypic, chemotaxonomic and phenotypic data, therefore, that strain AZO-CT represents a novel species of the genus Oceanicola, for which the name Oceanicola marinus sp. nov. is proposed. The type strain is AZO-CT (=LMG 23705T=BCRC 17591T).

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain AZO-CT is DQ822569.






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Copyright © 2007 by the International Union of Microbiological Societies.