1887

Abstract

A Gram-staining-positive, non-spore-forming actinobacterium, strain JC311, isolated from marine green alga of the genus was studied to examine its taxonomic position. On the basis of the 16S rRNA gene sequence similarity studies, strain JC311 was shown represent a member of the genus and to be closely related to LW6 (98.6 %), K22-20 (98.3 %) and HKI 0124 (98.1 %). However, strain JC311 showed less than 22 % DNA reassociation value (based on DNA–DNA hybridization) with JCM14001, JCM12763 and KCTC19901. The predominant menaquinone of strain JC311 was MK-8(H4). The peptidoglycan contained -ornithine as the diagnostic diamino acid. The polar lipid profile consisted of the lipids diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol, glycophospholipid, aminophospholipid, phospholipid and two unidentified lipids. The major fatty acids iso-C, iso-C, iso-Cω9 and iso-C were consistent with the fatty acid patterns reported for members of the genus . The distinct genomic, morphological, physiological and chemotaxonomic differences from the previously described taxa support the classification of JC311 as a representative of a novel species of the genus , for which we propose the name sp. nov., with the type strain JC311 ( = KCTC 39559  =  LMG 28808).

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2015-12-01
2019-10-22
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