Yimella lutea gen. nov., sp. nov., a novel actinobacterium of the family Dermacoccaceae
2010
A Gram-stain-positive, coccoid, non-motile, halotolerant actinobacterium,
designated YIM 45900T, was found as a contaminant on an agar plate
in the laboratory of Yunnan Institute of Microbiology, China. The peptidoglycan
type was A4α with an l-Lys–l-Ser–d-Asp interpeptide bridge. The cell-wall sugars contained galactose
and fucose. The predominant menaquinone was MK-8(H4).
The major fatty acids were iso-C15 : 0, anteiso-C15 : 0 and anteiso-C17 : 0. The
polar lipids contained diphosphatidylglycerol, phosphatidylinositol, a glucosamine-containing
phospholipid and an unknown phospholipid. The DNA G+C content
was 65.8 mol%. Phylogenetic analysis based on 16S rRNA gene
sequences revealed that the organism falls within the radius of the suborder Micrococcineae and its closest phylogenetic neighbours are the genera
of the family Dermacoccaceae. Strain YIM 45900T showed
16S rRNA gene sequences similarity values of 93.1–95.9 %
with members of the genera Dermacoccus, Demetria and Kytococcus. On the basis of the phylogenetic and phenotypic characteristics
of the actinobacterium, a novel genus and species, Yimella lutea
gen. nov., sp. nov., are proposed. The type strain of Yimella lutea
is YIM 45900T (=DSM 19828T =KCTC
19231T =CCTCC AB 207007T).
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