1887

Abstract

A novel Gram-strain-positive, non-spore-forming bacterial strain, designated GP-T3-3, was isolated from sediment sampled at a tidal flat in Gopado, Republic of Korea. Cells were aerobic, catalase-negative, oxidase-positive, non-motile cocci that occurred singly, in pairs or in clusters. Strain GP-T3-3 grew at 4–45 °C (optimum, 28–37 °C), at pH 4.0–12.0 (pH 8.0–9.0) and in the presence of 0–15 % (w/v) NaCl (3–5 %). Colonies of strain GP-T3-3 were deep-yellow, circular, smooth and pulvinate. The results of the phylogenetic analyses based on 16S rRNA gene sequences indicated that strain GP-T3-3 was closely related to Serinicoccus profundi MCCC 1A05965 (99.1 %), Serinicoccus chungangensis CAU 9536 (99.0 %) and Serinicoccus marinus JC1078 (98.0 %). The diagnostic diamino acid in the cell-wall peptidoglycan was meso-diaminopimelic acid. The predominant respiratory quinone was MK-8(H4) and the major fatty acids were anteiso-C17 : 0, iso-C16 : 0, iso-C15 : 0 and anteiso-C15 : 0. The polar lipid profile consisted of diphosphadidylglycerol, phosphadidylglycerol, phosphatidylcholine, phosphatidylinositol and two unidentified phospholipids. The DNA G+C content was 72.9 mol%. DNA–DNA relatedness values between strain GP-T3-3 and type strains of the genus Serinicoccus ranged from 28.9 to 50.5 %. On the basis of the phenotypic differences and DNA–DNA relatedness data, the isolate represents a new species of the genus Serinicoccus , for which the name Serinicoccus sediminis sp. nov. is proposed. The type strain is GP-T3-3 (=KCTC 49173=JCM 32825=KCCM 43309=KACC 19850).

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2019-05-03
2019-08-22
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