Sulthana Ayesha, Lakshmi Suvarna G, Madempudi Ratna Sudha
Center for Research and Development, Unique Biotech Limited, Hyderabad 500 078, India.
Genomics Inform. 2019 Dec;17(4):e43. doi: 10.5808/GI.2019.17.4.e43. Epub 2019 Nov 7.
Lactobacillus acidophilus UBLA-34, L. paracasei UBLPC-35, L. plantarum UBLP-40, and L. reuteri UBLRU-87 were isolated from different varieties of fermented foods. To determine the probiotic safety at the strain level, the whole genome of the respective strains was sequenced, assembled, and characterized. Both the core-genome and pan-genome phylogeny showed that L. reuteri was closest to L. plantarum than to L. acidophilus, which was closest to L. paracasei. The genomic analysis of all the strains confirmed the absence of genes encoding putative virulence factors, antibiotic resistance, and the plasmids.
嗜酸乳杆菌UBLA - 34、副干酪乳杆菌UBLPC - 35、植物乳杆菌UBLP - 40和罗伊氏乳杆菌UBLRU - 87是从不同品种的发酵食品中分离出来的。为了在菌株水平上确定益生菌的安全性,对各菌株的全基因组进行了测序、组装和特征分析。核心基因组和泛基因组系统发育分析均表明,罗伊氏乳杆菌与植物乳杆菌的亲缘关系比与嗜酸乳杆菌更近,而嗜酸乳杆菌与副干酪乳杆菌的亲缘关系最近。对所有菌株的基因组分析证实,它们不存在编码假定毒力因子、抗生素抗性的基因以及质粒。