| Lactobacillus (Ligilactobacilus) equi |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Lactobacillales, Family Lactobacillaceae, Genus Lactobacillus [Group B lactobacilli
(facultatively heterofermentative), Lactobacillus salivarius phylogenetic-group], Lactobacillus equi Morotomi, Yuki, Kado, Kushiro,
Shimazaki, Watanabe and Yuyama 2002.
Homotypic synonym: Ligilactobacillus equi (Morotomi et al. 2002) Zheng et al. 2020.
(facultatively heterofermentative), Lactobacillus salivarius phylogenetic-group], Lactobacillus equi Morotomi, Yuki, Kado, Kushiro,
Shimazaki, Watanabe and Yuyama 2002.
Homotypic synonym: Ligilactobacillus equi (Morotomi et al. 2002) Zheng et al. 2020.
Gram-positive rods (0.6-0.8 x 1.3-3.5 μm) occurring singly and in pairs; some
strains contain filamentous cells. Nonmotile.
strains contain filamentous cells. Nonmotile.
Colonies on MRS agar are white, smooth, convex and 2 mm in diameter. No growth at
15 ºC. Variable growth at 45 ºC. Facultatively anaerobic.
15 ºC. Variable growth at 45 ºC. Facultatively anaerobic.
Isolated from horse faecal specimens as one of the predominant intestinal lactobacilli.
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. - Morotomi M., Yuki N., Kado Y., Kushiro A., Shimazaki T., Watanabe K. and Yuyama T., 2002. Lactobacillus equi sp. nov., a
predominant intestinal Lactobacillus species of the horse isolated from faeces of healthy horses. IJSEM 52, 211-214. - 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.
Facultatively heterofermentative.
Positive results for fermentation of: fructose, galactose, glucose (D- and L-lactic acid are produced), lactose, maltose, mannitol,
melibiose, raffinose, and sucrose.
Negative results for catalase, fermentation of: amygdalin, adonitol, arabitol, cellobiose, dulcitol, erythritol, fucose, gluconate, glycogen,
glycerol, inositol, melezitose, sorbose, starch, and trehalose.
Variable results for fermentation of: arabinose, esculin, mannose, rhamnose, ribose, salicin, sorbitol, and xylose.
Positive results for fermentation of: fructose, galactose, glucose (D- and L-lactic acid are produced), lactose, maltose, mannitol,
melibiose, raffinose, and sucrose.
Negative results for catalase, fermentation of: amygdalin, adonitol, arabitol, cellobiose, dulcitol, erythritol, fucose, gluconate, glycogen,
glycerol, inositol, melezitose, sorbose, starch, and trehalose.
Variable results for fermentation of: arabinose, esculin, mannose, rhamnose, ribose, salicin, sorbitol, and xylose.
(c) Costin Stoica
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