Pontibacter soli sp. nov., isolated from the soil of a Populus rhizosphere in Xinjiang, China
2014
Dai, Jun | Xu, Mengbo | Peng, Fang | Jiang, Fan | Chen, Xiong | Wang, Zhi | Fang, Chengxiang
A Gram-stain negative, rod-shaped, non-motile and pink-pigmented bacterial strain, designated strain HYL7-26ᵀ, was isolated from a soil in the Desert Park of Huyang forest located in Xinjiang, China. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain HYL7-26ᵀ belongs to the genus Pontibacter in the family Cytophagaceae. The 16S rRNA gene sequence similarity between strain HYL7-26ᵀ and type strains of Pontibacter species ranged from 93.2 to 96.0 %. Strain HYL7-26ᵀ was found to contain iso-C₁₅:₀ (15.9 %), iso-C₁₇:₀ 3-OH (9.5 %) and summed feature 4 (comprising anteiso-C₁₇:₁ B and/or iso-C₁₇:₁ I, 21.0 %, as defined by the MIDI system) as the major cellular fatty acids. The major respiratory quinone was identified as MK-7 and the DNA G+C content was determined to be 43.8 mol%. sym-Homospermidine was the major polyamine observed in the cells. On the basis of phenotypic, chemotaxonomic and phylogenetic data, strain HYL7-26ᵀ is considered to represent a novel species of the genus Pontibacter, for which the name Pontibacter soli sp. nov. is proposed. The type strain is HYL7-26ᵀ (=CCTCC AB 206240ᵀ = NRRL B-59490ᵀ).
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