A Genomic View of Lactobacilli and Pediococci Demonstrates that Phylogeny Matches Ecology and Physiology

• DOI: 10.1128/aem.02116-15
• Publication Date: 2015-08-08T02:40:28Z
• Authors: Jinshui Zheng; Lifang Ruan; Ming Sun; Michael Gänzle
• Keywords: Pediococcus

Lactobacilli are used widely in food, feed, and health applications. The taxonomy of the genus Lactobacillus, however, is confounded by apparent lack physiological markers for phylogenetic groups lactobacilli unclear relationships between diverse groups. This study core pan-genomes 174 type strains Lactobacillus Pediococcus to establish identify metabolic properties differentiating genome tree separated homofermentative pediococci from heterofermentative lactobacilli. Aldolase phosphofructokinase were generally present but not lactobacilli; a two-domain alcohol dehydrogenase mannitol most absent organisms. Other genes predominantly (pyruvate formate lyase) or (lactaldehyde glycerol dehydratase). Cluster analysis phylogenomic average nucleotide identity grouped sensu lato into 24 groups, including pediococci, with stable intra- intergroup relationships. Individual may be differentiated characteristic properties. link phylogeny physiology that proposed this facilitates future studies on ecology, physiology, industrial applications