%0 Journal Article %A Duo, Jin-Ling %A Cha, Qi-Yan %A Zhou, Xing-Kui %A Zhang, Ti-Kun %A Qin, Shi-Chun %A Yang, Pei-Xiang %A Zhu, Ming-Liang %A Mo, Ming He %A Duan, Yan-Qing %T Aquabacter cavernae sp. nov., a bacterium isolated from cave soil %D 2019 %J International Journal of Systematic and Evolutionary Microbiology, %V 69 %N 12 %P 3716-3722 %@ 1466-5034 %R https://doi.org/10.1099/ijsem.0.003585 %K Aquabacter cavernae sp. nov. %K cave soil %K 16S rRNA gene %K polyphasic taxonomic %I Microbiology Society, %X A Gram-stain-negative, rod-shaped, non-motile, aerobic, catalase-negative and oxidase-positive bacterium, designated strain Sn-9-2T, was isolated from a cave soil sample collected from Tiandong cave, Guizhou Province, south-west PR China. Growth occurred at 15–40 °C (optimum, 30 °C), at pH 5.0–9.0 (optimum, pH 7.0–8.0) and with 0–1 % NaCl (w/v). The predominant respiration quinone was ubiquinone-10 (Q-10). The major cellular fatty acids were summed feature 8 (C18 : 1ω7c or C18 : 1ω6c; 83.9 %) and C16 : 0 (5.8 %). The major polar lipids were phosphatidylethanolamine, phosphatidylmonomethylethanolamine, phosphatidylcholine, phosphatidylglycerol, three unidentified phospholipids, two unidentified glycolipids, two unidentified polar lipids and one unidentified aminolipid. The DNA G+C content of strain Sn-9-2T was 67.5 mol%. Based on the results of 16S rRNA gene sequence analysis, the nearest phylogenetic neighbours of strain Sn-9-2T (MF958452) were identified as Aquabacter spiritensis (FR733686) DSM 9035T (97.5 %), Xanthobacter autorophicus (jgi.1053054) DSM 432T (97.2 %) and Xanthobacter tagetidis ATCC 700314T RCTF01000015 (96.9 %). The average nucleotide identity values were 78.0, 77.4 and 77.6 % and the digital DNA–DNA hybridization values were 21.8, 22.0 and 18.8 % between strain Sn-9-2T and A. spiritensis DSM 9035T, X. autotrophicus DSM 432T and X. tagetidis DSM 11105T, respectively. The DNA–DNA hybridization data indicated that strain Sn-9-2T represented a novel genomic species. On the basis of the results of phylogenetic analysis, chemotaxonomic data, physiological characteristics and DNA–DNA hybridization data, strain Sn-9-2T should represent a novel species of the genus Aquabacter , for which the name Aquabacter cavernae sp. nov. is proposed. The type strain is Sn-9-2T (=KCTC 62308T=CCTCC AB 2018270T). %U https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijsem.0.003585