Abstract：
A strictly anaerobic, Gram-stain-negative, catalase-negative, cocci-shaped, and propionate-producing bacterial strain, named Ds1651T was isolated from the fecal sample collected from a South Korean infant. Through a comparison of 16S rRNA gene sequences, it was revealed that Ds1651T had the highest phylogenetic affinity with Veillonella nakazawae KCTC 25297 T (99.86%), followed by Veillonella infantium KCTC 25370 T (99.80%), and Veillonella dispar KCTC 25309 T (99.73%) in the family Veillonellaceae. Average nucleotide identity values between Ds1651T and three reference species were 95.48% for Veillonella nakazawae KCTC 25297 T, 94.46% for Veillonella infantium KCTC 25370 T, and 92.81% for Veillonella dispar KCTC 25309 T. The G + C content of Ds1651T was 38.58 mol%. Major fermentation end-products were acetic and propionic acids in Trypticase peptone glucose yeast extract broth with 1% (v/v) sodium lactate. The predominant cellular fatty acids that account for more than 10% were summed in Feature 8 (C17:1 ω8c and/or C17:2) and C13:0. Based on the findings from phylogenetic, genomic, phenotypic, and chemotaxonomic studies, we propose that the type strain Ds1651T (= KCTC 25477 T = GDMCC 1.3707 T) represents a novel bacterial species within the genus Veillonella, with the proposed name Veillonella faecalis sp. nov.
摘要：
严格的厌氧，革兰氏染色阴性，过氧化氢酶阴性,球菌形,和产生丙酸的细菌菌株，从一名韩国婴儿的粪便样本中分离出名为Ds1651T。通过对16SrRNA基因序列的比较,结果表明，Ds1651T与VeillonellaNakazawaeKCTC25297T具有最高的系统发育亲和力（99.86％），其次是Veillonella婴儿KCTC25370T（99.80％），和VeillonelladisparKCTC25309T（99.73％）在Veillonellaceae科中。Ds1651T和三个参考物种之间的平均核苷酸同一性值对于VeillonellanakazawaeKCTC25297T为95.48％，婴儿VeillonellaKCTC25370T的94.46％，VeillonelladisparKCTC25309T为92.81％。Ds1651T的GC含量为38.58mol％。主要的发酵最终产物是含有1％（v/v）乳酸钠的胰蛋白酶蛋白p葡萄糖酵母提取物肉汤中的乙酸和丙酸。占10%以上的主要细胞脂肪酸在特征8(C17:1ω8c和/或C17:2)和C13:0中求和。根据系统发育的发现，基因组，表型，和化学分类学研究，我们认为，类型菌株Ds1651T（=KCTC25477T=GDMCC1.3707T）代表了Veillonella属中的一种新细菌物种，拟议名称为Veillonellafaecalissp.11月。
