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Abstract
A salmon-red-pigmented bacterial strain, designated M-8T, was isolated from a polluted farmland soil sample in China and was characterized in a taxonomic study using a polyphasic approach. Strain M-8T was Gram-stain-negative, rod-shaped, non-motile and non-spore-forming. Growth occurred at 20–37 °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-8T belonged to the genus Terrimonas .16S rRNA gene sequence similarity values between strain M-8T and the type strains of the three recognized species of the genus Terrimonas , Terrimonas ferruginea KACC 11310T, Terrimonas aquatica LMG 24825T and Terrimonas lutea KACC 13047T, 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-C15 : 0, iso-C17 : 0 3-OH and summed feature 3 (comprising C16 : 1ω7c and/or C16 : 1ω6c). The DNA G+C content of strain M-8T was 47.0 mol%. On the basis of genotypic and phenotypic data, strain M-8T 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-8T ( = CCTCC AB 2010401T = KCTC 23299T). An emended description of the genus Terrimonas is also presented.
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Funding
- National Natural Science Foundation of China (Award 31000001 and 30900044)
- Fund for the Doctoral Program of Higher Education (Award 20090097120031)