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Abstract

A lipolytic, Gram-stain-negative, aerobic, non-motile and coccoid, ovoid or rod-shaped bacterial strain, designated BPTF-M16, was isolated from tidal flat sediment on the Yellow Sea in the Republic of Korea. Strain BPTF-M16 grew optimally at 30 °C and in the presence of 2.0–3.0 % (w/v) NaCl. A phylogenetic tree of 16S rRNA gene sequences showed that strain BPTF-M16 fell within the clade comprising the type strains of Altererythrobacter species. Strain BPTF-M16 exhibited 16S rRNA gene sequence similarity values of 98.0 and 97.1 % to the type strains of Altererythrobacter ishigakiensis and A ltererythrobacter marinus , respectively, and of less than 97.0 % to the type strains of the other recognized species. Strain BPTF-M16 contained Q-10 as the predominant ubiquinone and C18 : 1 ω7c as the major fatty acid. The major polar lipids detected in strain BPTF-M16 were phosphatidylcholine, phosphatidylethanolamine, phosphatidylglycerol, sphingoglycolipid and one unidentified glycolipid. Mean DNA–DNA relatedness values of strain BPTF-M16 with the type strains of A. ishigakiensis and A. marinus were 22 and 13 %, respectively. The average nucleotide identity value between strain BPTF-M16 and the type strain of A. ishigakiensis was 76.80 %. Differential phenotypic properties, together with the phylogenetic and genetic data, revealed that strain BPTF-M16 is separated from recognized Altererythrobacter species. On the basis of the data presented here, strain BPTF-M16 is considered to represent a novel species of the genus Altererythrobacter , for which the name Altererythrobacter insulae sp. nov. is proposed. The type strain is BPTF-M16 (=KCTC 62421=KACC 19609=NBRC 113190).

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/content/journal/ijsem/10.1099/ijsem.0.003260
2019-01-31
2020-01-21
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