Lactobacillus porci
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
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.
Non-spore-forming.
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.
Undetermined.
  1. 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.
Homofermentative.
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, H
2S 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-
and L-xylose.
(c) Costin Stoica
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