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Int J Syst Evol Microbiol 58 (2008), 2743-2747; DOI  10.1099/ijs.0.65724-0
© 2008 International Union of Microbiological Societies

Marinomonas basaltis sp. nov., a marine bacterium isolated from black sand

Ho-Won Chang1, Seong Woon Roh1,2, Kyoung-Ho Kim1, Young-Do Nam1,2, Jung-Hoon Yoon1, Hee-Mock Oh1 and Jin-Woo Bae1,2,3

1 Biological Resources Center, KRIBB, Daejeon 305-806, Republic of Korea
2 Korea University of Science and Technology, 52, Eoeun-dong, Daejeon 305-333, Republic of Korea
3 Environmental Biotechnology National Core Research Center, Gyeongsang National University, Jinju 660-701, Republic of Korea

Correspondence
Jin-Woo Bae
baejw{at}kribb.re.kr

A Gram-negative, aerobic, slightly halophilic, rod-shaped bacterium was isolated from black sand in Soesoggak, Jeju island, Korea. The strain, designated J63T, was oxidase- and catalase-positive and arginine dihydrolase-negative. The isolate required Na+ for growth and differed from phenotypically related species by being able to utilize sucrose and D-galactose as a carbon source. Phylogenetic analysis based on the sequence of the 16S rRNA gene revealed that strain J63T belongs to the genus Marinomonas. It exhibited 16S rRNA gene sequence similarities of 97.6–98.7 % to the closely related species Marinomonas communis, Marinomonas ostreistagni, Marinomonas aquimarina and Marinomonas vaga. The phylogenetic analysis revealed that strain J63T comprised a relatively long subline of descent, shared a branch point with the outlying species Marinomonas communis and occupied a phylogenetically distant position on the main Marinomonas branch. Based on DNA–DNA hybridization, the levels of relatedness between strain J63T and M. communis NBRC 102224T, M. aquimarina CIP 108405T and M. vaga JCM 20774T were 56.2, 45.1 and 51.3 %, respectively. On the basis of the phenotypic, genetic and phylogenetic data, strain J63T should be placed in the genus Marinomonas as representing a novel species, for which the name Marinomonas basaltis sp. nov. is proposed. The type strain is J63T (=KCTC 22118T=JCM 14948T).

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain J63T is EU143359.






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