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INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
卷 60, 期 -, 页码 2135-2139出版社
MICROBIOLOGY SOC
DOI: 10.1099/ijs.0.018242-0
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- Ministry of Science and Technology, Republic of Korea
A novel Gram-stain-positive, coccoid actinobacterium, designated strain Sco-D01(T), was isolated from volcanic ash collected from Oreum (a parasitic volcanic cone) on Jeju Island, Republic of Korea. Cells were aerobic, oxidase-negative and catalase-positive. Colonies were vivid yellow, circular, smooth and convex. The diagnostic diamino acid in the cell wall was LL-diaminopimelic acid. The predominant menaquinone was MK-8(H-4). The polar lipids were phosphatidylinositol, diphosphatidylglycerol, phosphatidylglycerol, phosphatidylcholine and an unknown phospholipid. The fatty acid profile was represented by large amounts of saturated, unsaturated, 10-methyl and hydroxyl components. The DNA G+C content of strain Sco-D01(T) was 72.0 mol%. 165 rRNA gene sequence analysis revealed that strain Sco-D01(T) belonged to the family Nocardioidaceae and formed a distinct sublineage within the radiation of the genus Marmoricola. The level of DNA-DNA relatedness between strain Sco-D01(T) and its closest phylogenetic relative, Marmoricola aurantiacus DSM 12652(T), was 30.2% (35.4% in duplicate measurements). On the basis of phenotypic and DNA-DNA hybridization data, strain Sco-D01(T) is considered to represent a novel species of the genus Marmoricola, for which the name Marmoricola scoriae sp. nov. is proposed. The type strain is Sco-D01(T)(=KCTC 19597(T)=DSM 22127(T)).
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