| Lactobacillus (Limosilactobacillus) antri |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Firmicutes, Class Bacilli, Order Lactobacillales, Family Lactobacillaceae, Genus Lactobacillus [Group C lactobacilli
(obligately heterofermentative), Lactobacillus reuteri - phylogenetic group], Lactobacillus antri Roos, Engstrand and Jonsson 2005.
Homotypic synonym: Limosilactobacillus antri (Roos et al. 2005) Zheng et al. 2020.
(obligately heterofermentative), Lactobacillus reuteri - phylogenetic group], Lactobacillus antri Roos, Engstrand and Jonsson 2005.
Homotypic synonym: Limosilactobacillus antri (Roos et al. 2005) Zheng et al. 2020.
Gram-positive rods, 1.0 x 1.2-2.0 µm, occuring singly or in pairs. Nonspore-forming.
Nonmotile.
Nonmotile.
After anaerobic growth at 37 ºC for 48 h, colonies on MRS agar are 2-3.5 mm in
diameter; they are white, smooth, and slightly convex. Growth on MRS agar under
aerobic conditions is very weak. Growth temperature is 20-45 ºC. No growth at 15 ºC.
diameter; they are white, smooth, and slightly convex. Growth on MRS agar under
aerobic conditions is very weak. Growth temperature is 20-45 ºC. No growth at 15 ºC.
Isolated from a biopsy of the healthy human gastric mucosa.
Undetermined.
- Hammes W.P. and Hertel C., 2009. Genus I. Lactobacillus Beijerinck 1901. In: (Eds.) P.D. Vos, G. Garrity, D. Jones, N.R. Krieg, W.
Ludwig, F.A. Rainey, K.-H. Schleifer, W.B. Whitman. Bergey’s Manual of Systematic Bacteriology, Volume 3: The Firmicutes,
Springer, 465-511. - Roos S., Engstrand L. and Jonsson H., 2005. Lactobacillus gastricus sp. nov., Lactobacillus antri sp. nov., Lactobacillus
kalixensis sp. nov. and Lactobacillus ultunensis sp. nov., isolated from human stomach mucosa. IJSEM 55, 77-82. - Zheng J, Wittouck S, Salvetti E, Franz MAP et al., 2020. A taxonomic note on the genus Lactobacillus: Description of 23 novel
genera, emended description of the genus Lactobacillus Beijerinck 1901, and union of Lactobacillaceae and Leuconostocaceae.
Int J Syst Microbiol. 70, 2782-2858.
Obligately heterofermentative (hexoses are fermented to lactic acid, acetic acid (ethanol), and CO2 via the phosphogluconate pathway;
pentoses are fermented to lactic acid and acetic acid by the related pentose phosphate pathaway).
Positive results for esculin hydrolysis (weak reaction), fermentation of: esculin (weak
reaction), fructose, galactose, glucose (with gas production), gluconate, maltose, mannitol (weak reaction), melibiose, raffinose,
ribose, and sucrose.
Negative results for catalase, fermentation of: adonitol, amygdalin, arbutin, cellobiose, dulcitol, erythritol, glycerol, glycogen, inositol,
inulin, lactose, mannose, melezitose, rhamnose, salicin, sorbitol, sorbose, starch, trehalose, 2- and 5-ketogluconate.
Variable results for fermentation of: arabinose, arabitol and xylose.
pentoses are fermented to lactic acid and acetic acid by the related pentose phosphate pathaway).
Positive results for esculin hydrolysis (weak reaction), fermentation of: esculin (weak
reaction), fructose, galactose, glucose (with gas production), gluconate, maltose, mannitol (weak reaction), melibiose, raffinose,
ribose, and sucrose.
Negative results for catalase, fermentation of: adonitol, amygdalin, arbutin, cellobiose, dulcitol, erythritol, glycerol, glycogen, inositol,
inulin, lactose, mannose, melezitose, rhamnose, salicin, sorbitol, sorbose, starch, trehalose, 2- and 5-ketogluconate.
Variable results for fermentation of: arabinose, arabitol and xylose.
(c) Costin Stoica
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