1887

Abstract

A -like strain, RtIII47, was isolated from a mangrove swamp in Sanya, Hainan Province, China. Phylogenetic analysis based on the 16S rRNA gene sequence indicated that the strain had a close association with the genus and shared the highest sequence similarity with YIM 013 (98.0 %). The strain also showed high 16S rRNA gene sequence similarities to DSM 43868 (97.9 %), YIM 61359 (97.9 %), CNB-440 (97.8 %), DSM 43363 (97.7 %), TT1-11 (97.7 %), CGMCC 4.3550 (97.6 %) and CNH-643 (97.5 %). Phylogenetic analysis based on the gene sequence supported the conclusion that strain RtIII47 should be assigned to the genus . DNA–DNA relatedness between strain RtIII47 and the most closely related type strain, YIM 013, was less than 40 %. Chemotaxonomic results confirmed the taxonomic position of the isolate in the genus , and revealed differences at the species level in polar lipids, whole-cell sugars and DNA G+C content. A combination of physiological and biochemical tests also distinguished this strain from other species. Based on genotypic and phenotypic observations, strain RtIII47 ( = CGMCC 4.5826  = NBRC 106684) is proposed as the type strain of a novel species, sp. nov. An emended description of the genus is also provided.

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2012-07-01
2020-01-25
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