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Int J Syst Evol Microbiol 57 (2007), 1799-1802; DOI  10.1099/ijs.0.65050-0
© 2007 International Union of Microbiological Societies

Loktanella maricola sp. nov., isolated from seawater of the East Sea in Korea

Jung-Hoon Yoon, So-Jung Kang, Soo-Young Lee and Tae-Kwang Oh

Korea Research Institute of Bioscience and Biotechnology (KRIBB), PO Box 115, Yusong, Taejon, Korea

Correspondence
Jung-Hoon Yoon
jhyoon{at}kribb.re.kr

A Gram-negative, non-motile and rod-shaped Loktanella-like bacterial strain, DSW-18T, was isolated from seawater of the East Sea, Korea, and its exact taxonomic position was investigated by using a polyphasic approach. Strain DSW-18T grew optimally at pH 7.0–8.0 and 25 °C in the presence of 2 % (w/v) NaCl. It contained Q-10 as the predominant ubiquinone and C18 : 1{omega}7c as the major fatty acid. The major polar lipids were phosphatidylcholine, phosphatidylglycerol and diphosphatidylglycerol. The DNA G+C content was 56.8 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain DSW-18T fell within the cluster comprising Loktanella species. The levels of 16S rRNA gene sequence similarity between strain DSW-18T and the type strains of recognized Loktanella species ranged from 94.4 to 98.4 %. The DNA–DNA relatedness data and differential phenotypic properties, together with the phylogenetic distinctiveness, demonstrated that strain DSW-18T was distinguishable from recognized Loktanella species. On the basis of the phenotypic, phylogenetic and genetic data, strain DSW-18T represents a novel species of the genus Loktanella, for which the name Loktanella maricola sp. nov. is proposed. The type strain is DSW-18T (=KCTC 12863T=JCM 14564T).

Abbreviations: BChl, bacteriochlorophyll

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain DSW-18T is EF202613.






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Copyright © 2007 by the International Union of Microbiological Societies.