Zhizhongheella caldifontis gen. nov., sp. nov., a novel member of the family Comamonadaceae
2014
Dong, Lei | Ming, Hong | Liu, Lan | Zhou, En-Min | Yin, Yi-Rui | Duan, Yan-Yan | Nie, Guo-Xing | Feng, Hui-Geng | Li, Wen-Jun
An alkalitolerant, thermotolerant, strictly aerobic and Gram-staining negative bacterial strain, designated YIM 78140ᵀ, was isolated from a water sample in Hehua hot spring, Tengchong, Yunnan province, south-west China. The colonies were light brown, convex and circular. Phylogenetic analysis of the 16S rRNA gene sequence of strain YIM 78140ᵀindicated that it was clustered with members of β-Proteobacteria (with the similarity from 96.9 to 93.6 %). Good growth occurred at 40–50 °C, pH 8.0–9.0 and in the presence of 0–3 % (w/v) NaCl. The predominant ubiquinones were Q-8 and Q-9. The major fatty acids were C₁₆:₀,C₁₇:₀cyclo, C₁₈:₁ω7c and summed feature 3. The G+C content of genomic DNA was 70.8 mol%. The results of physiological and biochemical characteristics, phylogenetic analysis allowed the phenotypic and genotypic differentiation of strain YIM 78140ᵀfrom its closest phylogenetic neighbours. Therefore, the strain YIM 78140ᵀrepresents a novel genus of the family Comamonadaceae, for which the name Zhizhongheella caldifontis gen. nov., sp. nov. is proposed. The type strain is YIM 78140ᵀ(= BCRC 80649ᵀ = KCTC 32557ᵀ).
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