Complete genome sequence analysis of a strain Lactobacillus pentosus ZFM94 and its probiotic characteristics
2020
Ye, Kai | Li, Ping | Gu, Qing
Lactic acid bacteria have been attracting increased attentions recent years because of harboring probiotic properties. In present study, a Lactobacillus pentosus strain ZFM94 was screened from healthy infant feces and its probiotic characteristics were investigated. We found that ZFM94 was resistant to environmental stresses (temperature, pH and NaCl), tolerant to gastrointestinal juice and bile salts, with inhibitory action against pathogens and capacity of folate production etc. Additionally, complete genome sequence of the strain was analyzed to highlight the probiotic features at genetic level. Genomic characteristics along with the experimental studies is critically important for building an appropriate probiotic profile of novel strains. Genes that correspond to phenotypes mentioned above were identified. Moreover, genes potentially related to its adaptation, such as carbon metabolism and carbohydrate transporter, carbohydrate-active enzymes, and a novel gene cluster RaS-RiPPs, were also revealed. Together, ZFM94 could be considered as a potential probiotic candidate.
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