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Int J Syst Evol Microbiol 59 (2009), 487-490; DOI  10.1099/ijs.0.65841-0
© 2009 International Union of Microbiological Societies

Thalassobacter arenae sp. nov., isolated from sea sand in Korea

Byung-Yong Kim1, Hang-Yeon Weon2, Jung-A Son2, Chang-Muk Lee1, Seung-Beom Hong1, Young-Ah Jeon1, Bon-Sung Koo1 and Soon-Wo Kwon1

1 Korean Agricultural Culture Collection (KACC), Microbial Genetics Division, National Institute of Agricultural Biotechnology, Rural Development Administration (RDA), Suwon 441-707, Republic of Korea
2 Applied Microbiology Division, National Institute of Agricultural Science and Technology, Rural Development Administration (RDA), Suwon 441-707, Republic of Korea

Correspondence
Soon-Wo Kwon
swkwon{at}rda.go.kr

A Gram-negative, short rod-shaped bacterium, strain GA2-M15T, was isolated from a sea-sand sample at Homi Cape, Pohang city, Republic of Korea. 16S rRNA gene sequence analysis demonstrated that this isolate was unique, showing 95.9 % sequence similarity to the type strain of Thalassobacter stenotrophicus and similarities of 94.0–95.2 % to the type strains of species of the genera Octadecabacter (94.4–95.2 %), Jannaschia (94.0–94.4 %) and Thalassobius (94.0–94.7 %). Chemotaxonomic characteristics (diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine and phosphatidylcholine as the major polar lipids and C18 : 1{omega}7c as the predominant fatty acid) and DNA G+C content (56 mol%) were also similar to those of Thalassobacter stenotrophicus. 16S rRNA gene sequence similarity, physiological properties and some fatty acid components showed that strain GA2-M15T could be differentiated from Thalassobacter stenotrophicus. On the basis of these results, strain GA2-M15T is considered to represent a novel species of the genus Thalassobacter, for which the name Thalassobacter arenae sp. nov. is proposed. The type strain is GA2-M15T (=KACC 12675T =DSM 19593T).

Abbreviations: Bchl a, bacteriochlorophyll a

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain GA2-M15T is EU342372.

A transmission electron micrograph of a cell of strain GA2-M15T and polar lipid profiles of strains GA2-M15T and Thalassobacter stenotrophicus DSM 16310T are available as supplementary material with the online version of this paper.






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