Falsigemmobacter faecalis gen. nov. sp. nov., isolated from faeces of Rhinopithecus roxellanae , and reclassification of
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ORIGINAL PAPER
Falsigemmobacter faecalis gen. nov. sp. nov., isolated from faeces of Rhinopithecus roxellanae, and reclassification of Gemmobacter intermedius as Falsigemmobacter intermedius comb. nov Guiding Li1 · Yi Jiang2 · Qinyuan Li2 · Xiu Chen3 · Longqian Jiang2 · Kun Zhang2 · Defeng An2 · Lei Lang2 · Li Han1 · Xueshi Huang1 · Chenglin Jiang2 Received: 13 November 2019 / Revised: 11 June 2020 / Accepted: 9 July 2020 © Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract Strain YIM 102744-1T was isolated from Rhinopithecus roxellanae fecal sample collected at Yunnan Wild Animal Park, Yunnan province, PR China. Cells were Gram-stain-negative, aerobic, non-motile and irregular rods. Optimal growth occurred in the presence of 0–1.0% (w/v) NaCl, at pH 7.0–8.0, and at 30 °C. The predominant ubiquinone was Q-10. The major cellular fatty acids (> 10.0%) were C18:1ω7c and C16:1ω7c/C16:1ω6c. The dominant polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine and phosphatidylcholine. The DNA G + C content was 62.4 mol%. Phylogenetic analysis based on 16S rRNA gene sequences revealed that YIM 102744-1T belonged to the family Rhodobacteraceae and shared the highest similarity with the type strain Gemmobacter intermedius 119/4T (96.6%). In addition, phylogenetic trees indicated that strain YIM 102744-1T formed a distinct clade together with the closest relative G. intermedius 119/4T. Based on the results of polyphasic taxonomic analysis, strain YIM 102744-1T is considered to represent a novel species within a new genus Falsigemmobacter, for which the name Falsigemmobacter faecalis gen. nov., sp. nov. is proposed. The type strain of Falsigemmobacter faecalis is YIM 102744-1T(= KCTC 52106T = CCTCC AB 2016031T). Because Gemmobacter intermedius 119/4T formed a branch with YIM 102744-1 in the phylogenetic trees and was clearly separated from the other members within the genus Gemmobacter, it is also proposed to transfer into the genus Falsigemmobacter as Falsigemmobacter intermedius comb. nov. (type strain 119/4T = CIP 110795T = LMG 28215T = CCM 8510T). The type species of the genus Falsigemmobacter is Falsigemmobacter intermedius gen. nov., comb. nov. Keyword Falsigemmobacter faecalis gen. nov. · sp. nov. · Falsigemmobacter intermedius gen. nov. · comb. nov. · Rhinopithecus roxellanae · feces Communicated by Erko Stackebrandt. Electronic supplementary material The online version of this article (https://doi.org/10.1007/s00203-020-01978-w) contains supplementary material, which is available to authorized users. * Yi Jiang [email protected] * Li Han [email protected] 1
Institute of Microbial Pharmaceuticals, College of Life and Health Sciences, Northeastern University, Shenyang 110819, Liaoning, China
2
School of Life Sciences, Yunnan Institute of Microbiology, Yunnan University, 2# North Cuihu Road, Kunming 650091, Yunnan, China
3
School of Medicine, Kunming University, Kunming 650214, China
Abbreviations ANI Average nucleotide identity dDDH
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