- Killer J, Pechar R, Svec P, Salmonova H, Svestil R, Geigerova M, Rada V, Vlkova E and Mekadim C, 2017. Lactobacillus caviae sp.
nov., an obligately heterofermentative bacterium isolated from the oral cavity of a guinea pig (Cavia aperea f. porcellus). Int J Syst
Evol Microbiol 67, 2903-2909.
Phylum Firmicutes, Class Bacilli, Order Lactobacillales, Family Lactobacillaceae, Genus Lactobacillus, Lactobacillus caviae Killer,
Pechar, Svec, Salmonova, Svestil, Geigerova, Rada, Vlkova and Mekadim 2017.
Gram-positive regular to slightly irregular rods, 0.4-0.8 / 1.2-8.5 µm, often constricted
in the middle occurring singly and in small clusters. Non-spore-forming. Non-motile.
Colonies are yellowish, disc shaped in profile, glossy, 1.1-2.4 mm in diameter after 3
days of anaerobic incubation at 37 ºC on MRS and TPY agar; 0.6-1.7 mm in diameter
under aerobic conditions. Facultative anaerobe. Grows at 10-45 ºC (optimally at 37
ºC). Grows at pH 4.5-8.5.
Isolated from the oral cavity of a 10-month-old male home-bred guinea pig (Cavia aperea f. porcellus). Habitat includes rat caecum.
Description is based mostly on API 50 CHL, API 20A, RAPID ID32A and API ZYM (bioMerieux) results.
Positive results for acid phosphatase (weak), arginine arylamidase, alpha- and beta-galactosidase (weak), alpha-glucosidase, leucine
arylamidase (weak), esterase lipase (C8) (weak), acid production from L-arabinose, galactose, gentiobiose, glucose (with gas
production), gluconate (without gas production), lactose, maltose, melibiose, methyl alpha-D-glucopyranoside (weak), raffinose, ribose,
starch, sucrose, trehalose, and D-xylose.
Negative results for alkaline phosphatase, arginine dihydrolase, alpha-arabinosidase, catalase, cysteine arylamidase, esterase (C4),
alpha-fucosidase, beta-glucosidase, beta-glucuronidase, N-acetyl-beta-glucosaminidase, gelatin hydrolysis, indole production, lipase
(C14), alpha-manosidase, nitrate reduction, oxidase, trypsin, urease, valine arylamidase, acid production from amygdalin, arbutin,
adonitol, D-arabinose, D- and L-arabitol, cellobiose, dulcitol, erythritol, esculin, D-fructose,D- and L-fucose, 2-ketogluconate, glycerol,
glycogen inositol, inulin, D-lyxose, mannitol, mannose, melezitose, methyl alpha-D-xyloside, methylalpha-D-mannopyranoside,
N-acetylglucosamine, rhamnose, salicin, L-sorbose, sorbitol, turanose, D-tagatose, methyl beta-D-xylopyranoside, xylitol, and L-xylose.
(c) Costin Stoica