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Zhizhongheella caldifontis gen. nov., sp. nov., a novel member of the family Comamonadaceae |
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| Authors: | Lei Dong Hong Ming Lan Liu En-Min Zhou Yi-Rui Yin Yan-Yan Duan Guo-Xing Nie Hui-Geng Feng Wen-Jun Li |
| Affiliation: | 1. Key Laboratory of Microbial Diversity in Southwest China, Ministry of Education, and Laboratory for Conservation and Utilization of Bio-resources, Yunnan Institute of Microbiology, Yunnan University, Kunming, 650091, People’s Republic of China 2. College of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, 453003, People’s Republic of China 3. College of Fisheries, Henan Normal University, Xinxiang, 453007, People’s Republic of China |
| Abstract: | 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 78140T indicated 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, C17:0 cyclo, C18:1 ω7c 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 78140T from its closest phylogenetic neighbours. Therefore, the strain YIM 78140T represents 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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