Phylum Firmicutes, Class Bacilli, Order Lactobacillales, Family Lactobacillaceae, Genus Lactobacillus, Lactobacillus porci Kim,
Choe, Kim, Lee, Rhee and Park 2018.
Gram-positive rods, 0.5-0.7 x 3.5-5.5 µm, occurring singly or in pairs. Non-motile.
Colonies are smooth, beige, convex, 2-2.5 mm in diameter after 2 days of anaerobic
incubation at 37 ºC on MRS agar. Can grow at 15-50 ºC, optimum at 37 ºC. Can grow
in 0-0.5% NaCl. Grows at pH 5.0-11.0, optimum at pH 7.0. Facultative anaerobic.
Isolated from small intestine of a 6-month-old female swine, Korea.
- Kim JS, Choe H, Kim KM, Lee YR, Rhee MS and Park DS, 2018. Lactobacillus porci sp. nov., isolated from small intestine of a
swine. Int J Syst Evol Microbiol 68, 3118-3124.
Biochemical description is based mostly on API 50 CHL, API ZYM and Rapid ID 32A (bioMerieux) results.
Positive results for alpha-glucosidase, beta-galactosidase, leucine arylamidase, fermentation of esculin, D-fructose, D-glucose
(without gas production), D-lactose, N-acetylglucosamine, maltose, mannose, raffinose, sucrose and trehalose, .
Negative results for acid phosphatase, alkaline phosphatase, arginine deamination, catalase, esculin hydrolysis, H2S production,
hippurate hydrolysis, nitrate and nitrite reduction, indole production, oxidase, pyruvate utilisation, urease, Voges-Proskauer test,
cystine arylamidase, esterase (C4), esterase lipase (C8), lipase (C14), trypsin, alpha-chymotrypsin, alpha-galactosidase,
beta-glucosidase, alpha-fucosidase, alpha-mannosidase, beta-glucuronidase,N-acetyl-beta-glucosaminidase,
naphthol-AS-BI-phosphohydrolase, valine arylamidase, fermentation of: amygdalin, adonitol, arbutin, D- and L-arabinose, D- and
L-arabitol, cellobiose, dulcitol, erythritol, D- and L-fucose, galactose, gentibiose, glycerol, glycogen, gluconate, 2- and
5-ketogluconate, inositol, inulin, D-lyxose, D-mannitol, melezitose, melibiose, methyl alpha-D-mannopyranoside, rhamnose, ribose,
starch, sorbitol, L-sorbose, salicin, D-tagatose, turanose, methyl alpha-D-glucopyranoside, methyl beta-D-xylopyranoside, xylitol, D-
(c) Costin Stoica