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A Gram-positive-staining, aerobic, catalase- and oxidase-positive, irregular short rod-shaped actinobacterium, designated strain YIM C003T, was isolated from a salt mine in Yunnan, PR China. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain YIM C003T was most closely related to strains of the genera Knoellia (94.2–96.0 % similarity), Oryzihumus (95.6 %), Terrabacter (94.9–95.4 %), Janibacter (94.9–95.4 %), Kribbia (95.0 %), Lapillicoccus (95.0 %) and Phycicoccus (94.2–95.0 %) of the family Intrasporangiaceae and that it formed an independent monophyletic lineage with three strains of Oryzihumus leptocrescens. The DNA G+C content of strain YIM C003T was 72.0 mol%. The diagnostic cell-wall diamino acid was meso-diaminopimelic acid. The predominant menaquinone was MK-8(H4). Mycolic acids were not detected. The polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, phosphatidylinositol and two unknown phospholipids. The major cellular fatty acids were C18 : 1 ω9c and C16 : 0. These chemotaxonomic properties, together with data from phylogenetic analysis, enabled the novel isolate to be differentiated from all other members of the family. A novel species in a new genus, Fodinibacter luteus gen. nov., sp. nov., is proposed, with strain YIM C003T (=DSM 21208T =CCTCC AA 208036T) as the type strain of Fodinibacter luteus.
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International Journal of Systematic and Evolutionary Microbiology vol. 59 , part 9, pp. 2185 - 2190
Supplementary Fig. S1. Transmission electron micrograph of cells of strain YIM C003 Tgrown on GTM agar medium for 7 days at 28 °C. Bar, 1 µm.