Terrimonas rubra sp nov., isolated from a polluted farmland soil and emended description of the genus Terrimonas

A salmon-red-pigmented bacterial strain, designated M-8(T), was isolated from a polluted farmland soil sample in China and was characterized in a taxonomic study using a polyphasic approach. Strain M-8(T) was Gram-stain-negative, rod-shaped, non-motile and non-spore-forming. Growth occurred at 20-37 degrees C, at pH 5.0-10.0 and with 0-2% (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain M-8(T) belonged to the genus Terrimonas.16S rRNA gene sequence similarity values between strain M-8(T) and the type strains of the three recognized species of the genus Terrimonas, Terrimonas ferruginea KACC 11310(T), Terrimonas aquatica LMG 24825(T) and Terrimonas lutea KACC 13047(T), were 97.1, 96.3 and 95.3%, respectively. The predominant respiratory quinone was menaquinone-7 (MK-7) and the major fatty acids were iso-C-15:0, iso-C-17:0 3-OH and summed feature 3 (comprising C-16:(1)omega 7C and/or C-16:1 omega 6c). The DNA G+C content of strain M-8(T) was 47.0 mol%. On the basis of genotypic and phenotypic data, strain M-8(T) is considered to represent a novel species of the genus Terrimonas, for which the name Terrimonas rubra sp. nov. is proposed. The type strain is M-8(T) (=CCTCC AB 2010401(T)=KCTC 23299(T)). An emended description of the genus Terrimonas is also presented.