Kämpfer Peter, Glaeser S P, McInroy John A, Clermont Dominique, Criscuolo Alexis, Busse Hans-Jürgen
Institut für Angewandte Mikrobiologie, Justus-Liebig-Universität Giessen, D-35392 Giessen, Germany.
Department of Entomology and Plant Pathology, Auburn University, Alabama, USA.
Int J Syst Evol Microbiol. 2021 Apr;71(4). doi: 10.1099/ijsem.0.004750.
A beige-pigmented, oxidase-positive bacterial isolate, Wesi-4, isolated from charcoal in 2012, was examined in detail by applying a polyphasic taxonomic approach. Cells of the isolates were rod shaped and Gram-stain negative. Examination of the 16S rRNA gene sequence of the isolate revealed highest sequence similarities to the type strains of and (both 97.3 %). Phylogenetic analyses on the basis of the 16S rRNA gene sequences indicated a separate position of Wesi-4, which was confirmed by multilocus sequence analyses (MLSA) based on the three loci , and and a core genome-based phylogenetic tree. Genome sequence based comparison of Wesi-4 and the type strains of and yielded average nucleotide identity values <95 % and DNA-DNA hybridization values <70 %, respectively. The polyamine pattern contains the major amines putrescine, cadaverine and spermidine. The quinone system contains predominantly ubiquinone Q-9 and in the polar lipid profile diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine are the major lipids. The fatty acid contains predominantly C, summed feature 3 (Cω7 and/or Cω6) and summed feature 8 (Cω7 and/or C ω6). In addition, physiological and biochemical tests revealed a clear phenotypic difference from . These cumulative data indicate that the isolate represents a novel species of the genus for which the name sp. nov. is proposed with Wesi-4 (=DSM 110367=CIP 111764=CCM 9017) as the type strain.
2012年从木炭中分离出的一株米色色素、氧化酶阳性细菌Wesi-4,采用多相分类方法进行了详细研究。该分离株的细胞呈杆状,革兰氏染色阴性。对该分离株16S rRNA基因序列的检测显示,其与[具体菌属1]和[具体菌属2]的模式菌株序列相似性最高(均为97.3%)。基于16S rRNA基因序列的系统发育分析表明Wesi-4处于一个独立的位置,基于[三个基因座名称1]、[三个基因座名称2]和[三个基因座名称3]的多位点序列分析(MLSA)以及基于核心基因组的系统发育树也证实了这一点。基于基因组序列比较,Wesi-4与[具体菌属1]和[具体菌属2]的模式菌株的平均核苷酸同一性值分别<95%,DNA-DNA杂交值<70%。多胺模式包含主要胺类腐胺、尸胺和亚精胺。醌系统主要包含泛醌Q-9,在极性脂质谱中,双磷脂酰甘油、磷脂酰甘油和磷脂酰乙醇胺是主要脂质。脂肪酸主要包含C、总和特征3(Cω7和/或Cω6)和总和特征8(Cω7和/或Cω6)。此外,生理生化测试显示其与[具体参照菌属]存在明显的表型差异。这些累积数据表明该分离株代表了[具体菌属]的一个新物种,为此提出新名称[新物种名称]sp. nov.,以Wesi-4(=DSM 110367=CIP 111764=CCM 9017)作为模式菌株。