A Gram-positive-staining, aerobic, catalase-and oxidase-positive, irregular short rod-shaped actinobacterium, designated strain YIM C003 T , was isolated from a salt mine in Yunnan, PR China. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain YIM C003 T 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

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... 5.0 %) 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 C003 T was 72.0 mol%. The diagnostic cell-wall diamino acid was meso-diaminopimelic acid. The predominant menaquinone was MK-8(H 4 ). Mycolic acids were not detected. The polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, phosphatidylinositol and two unknown phospholipids. The major cellular fatty acids were C 18 : 1 v9c and C 16 : 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 C003 T (5DSM 21208 T 5CCTCC AA 208036 T ) as the type strain of Fodinibacter luteus. Abbreviation: DAP, diaminopimelic acid. 3These authors contributed equally to this work. The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain YIM C003 T is EU878005. A transmission electron micrograph of cells of strain YIM C003 T is available as supplementary material with the online version of this paper.