Dong Yun, Wang Yurong, Zhao Huijun, Zhang Yan, Zhang Haibo, Sun Yafang, Guo Zhuang
Hubei Provincial Engineering and Technology Research Center for Food Ingredients, Hubei University of Arts and Science, Xiangyang, Hubei, China.
Xiangyang Lactic Acid Bacteria Biotechnology and Engineering Key Laboratory, Hubei University of Arts and Science, Xiangyang, Hubei, China.
Curr Microbiol. 2023 Feb 21;80(4):112. doi: 10.1007/s00284-023-03211-5.
The zha-chili isolate HBUAS62285 is a facultative anaerobic strain. This bacterium was gram-positive, but it could not generate catalase, was not motile, did not form spores, had no flagella, and produced gamma-aminobutyric acid (GABA). Comparing of HBUAS62285 with its related type strains Levilactobacillus suantsaiihabitans BCRC 81129, Levilactobacillus angrenensis M1530-1, Levilactobacillus cerevisiae DSM 100836, Levilactobacillus wangkuiensis 6-5(1), Levilactobacillus lanxiensis 13B17, and Levilactobacillus mulengensis 112-3 showed that the similarity of 16S rRNA gene sequence was less than 99.13%. Strain HBUAS62285 has a G+C content of 50.57 mol%, an ANI value of less than 86.61%, an AAI value of less than 92.9%, and a dDDH value of less than 32.9% when compared to the aforementioned closely related strains. In the end, the most major fatty acids in cells were determined to be C, C ω9c, C cyclo ω9,10c, and summed feature 10. Overall, the results of the phenotypic, genomic, chemotaxonomic, and phylogenetic studies indicate that strains HBUAS62285 and CD0817 constitute a new species within the genus Levilactobacillus, and the name Levilactobacillus yiduensis sp. nov. is proposed. The type strain is HBUAS62285 (= JCM 35804 = GDMCC 1.3507).
扎辣椒分离株HBUAS62285是兼性厌氧菌株。该细菌为革兰氏阳性,但不产生过氧化氢酶,无运动性,不形成芽孢,无鞭毛,并产生γ-氨基丁酸(GABA)。将HBUAS62285与其相关模式菌株酸笋乳杆菌BCRC 81129、安格伦乳杆菌M1530-1、酿酒乳杆菌DSM 100836、汪氏乳杆菌6-5(1)、兰溪乳杆菌13B17和穆棱乳杆菌112-3进行比较,结果表明其16S rRNA基因序列相似性低于99.13%。与上述密切相关菌株相比,菌株HBUAS62285的G+C含量为50.57 mol%,ANI值低于86.61%,AAI值低于92.9%,dDDH值低于32.9%。最终,确定细胞中最主要的脂肪酸为C、C ω9c、C环ω9,10c和总和特征10。总体而言,表型、基因组、化学分类学和系统发育研究结果表明,菌株HBUAS62285和CD0817构成了乳杆菌属内的一个新物种,因此提出了新种名称宜都乳杆菌(Levilactobacillus yiduensis sp. nov.)。模式菌株为HBUAS62285(=JCM 35804 =GDMCC 1.3507)。