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Int J Syst Evol Microbiol. 2017 Aug;67(8):2959-2963. doi: 10.1099/ijsem.0.002056. Epub 2017 Aug 18.

Umboniibacter caenipelagi sp. nov., isolated from a tidal flat.

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Department of Food Science and Biotechnology, Sungkyunkwan University, Cheoncheon-dong 300, Jangan-gu, Suwon 440-746, Republic of Korea.


A Gram-stain-negative, non-motile, aerobic and ovoid or rod-shaped bacterium, designated SCTF-16T, was isolated from a tidal flat on the Yellow Sea, South Korea. Strain SCTF-16T grew optimally at 30 °C, at pH 7.0-7.5 and in the presence of 2.0 % (w/v) NaCl. In the neighbour-joining, maximum-likelihood and maximum-parsimony phylogenetic trees based on 16S rRNA gene sequences, strain SCTF-16T clustered with the type strains of two species of the genus Umboniibacter. Strain SCTF-16T exhibited 16S rRNA gene sequence similarities of 99.6 and 97.1 % to the type strains of Umboniibacterroseus and Umboniibactermarinipuniceus, respectively, and of less than 93.4 % to the type strains of the other recognized species. Strain SCTF-16T contained Q-7 as the predominant ubiquinone and summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c) and C13 : 0 as the major fatty acids. The major polar lipids detected in strain SCTF-16T were phosphatidylethanolamine and phosphatidylglycerol. The DNA G+C content of strain SCTF-16T was 50.0 mol%, and its mean DNA-DNA relatedness values with the type strains of U. roseus and U. marinipuniceus were 31 and 9 %, respectively. The differential phenotypic properties, together with the phylogenetic and genetic distinctiveness, revealed that strain SCTF-16T is separated from the two recognized species of the genus Umboniibacter. On the basis of the data presented, strain SCTF-16T is considered to represent a novel species of the genus Umboniibacter, for which the name Umboniibacter caenipelagi sp. nov. is proposed. The type strain is SCTF-16T (=KCTC 52628T=NBRC 112760T).

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