DESCRIPTIONOF LIMOSILACTOBACILLUS REUTERI COMB. NOV.

Limosilactobacillus reuteri (reu ′ te.ri. N.L. gen. n. reuteri, of Reuter; named for G. Reuter, a German bacteriologist).

Basonym: Lactobacillus reuteri Kandler et al. 1982, 266 VL

Prior to 1980, strains of the species were classified as L. fermentum Biotype II [268]. The species has been studied as model species to determine host-adaptation of intestinal lactobacilli, and co-adaptation of Limosilactobacillus and Lactobacillus species (e.g. L. taiwanensis) that coexist in biofilms in intestinal ecosystems and preferentially different substrates [55, 56, 269]. L. reuteri is divided in host-adapted lineages that are equivalent to the taxonomic rank of subspecies [269, 270] and differ in their ability to form biofilms in the mouse forestomach [271]. Few strains of L. reuteri produce the antimicrobial compound reutericyclin with a polyketide synthase, which is a unique ability among lactobacilli [272]. The genome size of the type strain is 1.94 Mbp. The mol% G+C content of DNA is 38.6.

Isolated as dominant members of the intestinal microbiota of rodents, birds, swine, and in other intestinal ecosystems; also occurs in cereal fermentations, particularly type II sourdoughs [58]. Food isolates are of intestinal origin [273].

Thetype strain of the species is F 275 T = ATCC 23272 T =DSM 20016 T = JCM 1112 T =LMG 9213 T = LMG 13557 T.

Genome sequence accession number: AZDD00000000.

16S rRNA gene accession number: AP007281.