Dinghuibacter silviterrae gen. nov., sp. nov., isolated from forest soil

A novel Gram-stain negative, non-motile, rod-shaped, aerobic bacterial strain, designated DHOA34T, was isolated from forest soil of Dinghushan Biosphere Reserve, Guangdong Province, China. Comparative 16S rRNA gene sequence analysis showed that it exhibited highest similarity with Flavisolibacter ginsengiterrae Gsoil 492T and Flavitalea populi HY-50RT, at 90.89 and 90.83%, respectively. In the neighbour-joining phylogenetic tree based on 16S rRNA gene sequences, DHOA34T formed an independent lineage within the family Chitinophagaceae but was distinct from all recognized species and genera of the family. The major cellular fatty acids of DHOA34T included iso-C15:0, anteiso-C15:0, iso-C17:0 3-OH and summed feature 3 (C16:1ω6c and/or C16:1ω7c). The DNA G+C content was 51.6 mol% and the predominant quinone was menaquinone 7 (MK-7). Flexirubin pigments were produced. The phenotypic, chemotaxonomic and phylogenetic data demonstrate consistently that strain DHOA34T represents a novel species of a new genus in the family Chitinophagaceae, for which the name Dinghuibacter silviterrae gen. nov., sp. nov. is proposed. The type strain of Dinghuibacter silviterrae is DHOA34T (=CGMCC 1.15023T=KCTC 42632T).