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从一只狗身上分离到的新种。

sp. nov. isolated from a dog.

机构信息

Institute of Hygiene and Infectious Diseases of Animals, Justus-Liebig-University Giessen, 35392 Giessen, Germany.

Hessian State Laboratory, 35392 Giessen, Germany.

出版信息

Int J Syst Evol Microbiol. 2020 Apr;70(4):2648-2656. doi: 10.1099/ijsem.0.004086. Epub 2020 Mar 25.

Abstract

From a phlegmon in a dog an aerobic and facultatively anaerobic, indole-, oxidase- and catalase-negative, non-motile bacterium was isolated in 2019 in Germany that stained Gram-negative and showed a pleomorphic, rod-shaped, non-spore-forming appearance. Based on the results of 16S rRNA gene sequence analyses, strain IHIT1603-19 was assigned to the genus with sequence similarities of 98.6, 98.0, 97.9, 97.1 and 94.4 % to the type strains of , , , and , respectively. Strain IHIT1603-19 could also clearly be differentiated from other species by , and gene, nucleotide and amino acid sequence analyses as well as by core genome phylogeny. Regarding DNA-DNA relatedness, strain IHIT1603-19 demonstrated an average nucleotide identity of 83.00 and 82.28 % compared to 131000547 and DSM 12112, respectively. Chemotaxonomic and physiological data of strain IHIT1603-19 were in congruence with other closely related members of the family , represented by highly similar enzyme profiles and fatty acid patterns. MALDI-TOF MS analysis also proved suitable in unequivocally discriminating strain IHIT1603-19 from all currently described taxa of the genus . On the basis of these data, we propose the novel species sp. nov. with the type strain IHIT1603-19 (=DSM 110501=CCUG 74118=CIP 111795). The G+C content of the DNA of the type strain is 26.6 mol%, genome size is 1.60 Mbp.

摘要

从一只狗的痈中,2019 年在德国分离到一株需氧兼性厌氧、吲哚阴性、氧化酶和触酶阴性、非运动的细菌,该菌革兰氏染色阴性,呈多形性、杆状、非孢子形成外观。基于 16S rRNA 基因序列分析的结果,菌株 IHIT1603-19 被分配到属,与 、 、 、 和 的模式菌株的序列相似性分别为 98.6%、98.0%、97.9%、97.1%和 94.4%。通过基因、核苷酸和氨基酸序列分析以及核心基因组系统发育分析,菌株 IHIT1603-19 也可以与其他 种明显区分开来。关于 DNA-DNA 同源性,菌株 IHIT1603-19 与 131000547 和 DSM 12112 的平均核苷酸同一性分别为 83.00%和 82.28%。菌株 IHIT1603-19 的化学生理数据与其他密切相关的家族成员一致,表现出高度相似的酶谱和脂肪酸模式。MALDI-TOF MS 分析也证明了在明确区分菌株 IHIT1603-19 与属内所有目前描述的分类群方面是合适的。基于这些数据,我们提出了一个新的物种 sp. nov.,其模式菌株为 IHIT1603-19(=DSM 110501=CCUG 74118=CIP 111795)。模式菌株的 DNA G+C 含量为 26.6 mol%,基因组大小为 1.60 Mbp。

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