gen. nov., sp. nov., isolated from a hot spring.

An isolate, designated CFH 74404, was recovered from a hot spring in Tengchong, Yunnan province, PR China. Phylogenetic analysis indicated that the isolate belongs to the family and showed the highest 16S rRNA gene sequence similarity to KI4 (93.6 %), WKT50.2 (93.1 %), DSM 5159 (92.0 %) and KI3 (91.7 %). The average amino acid identity and average nucleotide identity values between strain CFH 74404 and the closest relatives were 42.0-75.9 % and 67.0-77.3 %, respectively. Cells of strain CFH 74404 stained Gram-positive and were aerobic, non-motile and short rod-shaped. Growth occurred at 20-65 °C (optimum, 55 °C), pH 6.0-8.0 (optimum, pH 7.0) and with up to 2.0 % (w/v) NaCl (optimum 0-1.0 %, w/v). The predominant respiratory quinone was MK-8. The major fatty acids (>10 %) were C (50.8 %) and C (16.8 %). The polar lipid profile of strain CFH 74404 included diphosphatidylglycerol, four unidentified phosphoglycolipids, phosphatidylinositol and three unidentified glycolipids. The G+C content of the genomic DNA was determined to be 67.1 mol% based on the draft genome sequence. On the basis of phenotypic, phylogenetic and genotypic analyses, it is concluded that strain CFH 74404 represents a new species of a novel genus of the family , for which the name gen. nov., sp. nov. is proposed. The type strain is CFH 74404 (=KCTC 62930=CGMCC 1.61585).