| Lactobacillus wasatchensis |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Lactobacillales, Family Lactobacillaceae, Genus Lactobacillus,
Lactobacillus wasatchensis Oberg, Oberg, Culumber, Ortakci, Broadbent and McMahon, 2016.
Homotypic synonym: Paucilactobacillus wasatchensis (Oberg et al. 2016) Zheng et al. 2020.
Lactobacillus wasatchensis Oberg, Oberg, Culumber, Ortakci, Broadbent and McMahon, 2016.
Homotypic synonym: Paucilactobacillus wasatchensis (Oberg et al. 2016) Zheng et al. 2020.
Gram-positive rods, 0.4-0.6 x 2.0-3.4 µm, occurring singly, in pairs and in short chains.
Non-motile. Non-spore-forming.
Non-motile. Non-spore-forming.
Colonies are smooth, white, convex, small, 0.5-1.0 mm in diameter after 3 days of
anaerobic incubation at 25 ºC on MRS agar supplemented with 1.5% ribose. Grows at
6-30 ºC, optimally at 23-25 ºC. Can grow in 5% NaCl. Grows at pH 4.0-7.0. Facultative
anaerobic.
anaerobic incubation at 25 ºC on MRS agar supplemented with 1.5% ribose. Grows at
6-30 ºC, optimally at 23-25 ºC. Can grow in 5% NaCl. Grows at pH 4.0-7.0. Facultative
anaerobic.
Isolated from aged Cheddar cheese exhibiting late gas defect.
Undetermined.
- Oberg CJ, Oberg TS, Culumber MD, Ortakci F, Broadbent JR and McMahon D, 2015. Lactobacillus wasatchensis sp. nov., a non-
starter lactic acid bacteria isolated from aged Cheddar cheese. Int J Syst Evol Microbiol 66, 158-164. - 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.
Heterofermentative.
Description is based on API 50 CHL (incubated at 30 ºC) and API ZYM results.
Positive results for cystine arylamidase (weakly), beta-galactosidase, leucine arylamidase, valine arylamidase,
naphthol-AS-BI-phosphohydrolase, fermentation of galactose (weakly) and ribose.
Negative results for acid and alkaline phosphatase, catalase, esterase (C4), esterase lipase (C8), lipase (C14), trypsin,
alpha-chymotrypsin, alpha-fucosidase, alpha-galactosidase, alpha- and beta-glucosidase, beta-glucuronidase,
N-acetyl-beta-glucosaminidase, alpha-mannosidase, fermentation of adonitol, amygdalin, D- and L-arabinose, D- and L-arabitol,
arbutin, cellobiose, dulcitol, erythritol, esculin, L- and D-fucose, D-fructose, glucose, gentiobiose, gluconate, 2- and 5-ketogluconate,
glycerol, glycogen, inositol, inulin, D-lyxose, lactose, maltose, mannitol, melezitose, melibiose, mannose, methyl
alpha-D-mannopyranoside, methyl alpha-D-glucopyranoside, methyl alpha-D-xyloside, raffinose, rhamnose, sorbitol, L-sorbose,
starch, salicin, sucrose, D-tagatose, trehalose, turanose, xylitol, D- and L-xylose, N-acetylglucosamine, and methyl
beta-D-xylopyranoside.
Description is based on API 50 CHL (incubated at 30 ºC) and API ZYM results.
Positive results for cystine arylamidase (weakly), beta-galactosidase, leucine arylamidase, valine arylamidase,
naphthol-AS-BI-phosphohydrolase, fermentation of galactose (weakly) and ribose.
Negative results for acid and alkaline phosphatase, catalase, esterase (C4), esterase lipase (C8), lipase (C14), trypsin,
alpha-chymotrypsin, alpha-fucosidase, alpha-galactosidase, alpha- and beta-glucosidase, beta-glucuronidase,
N-acetyl-beta-glucosaminidase, alpha-mannosidase, fermentation of adonitol, amygdalin, D- and L-arabinose, D- and L-arabitol,
arbutin, cellobiose, dulcitol, erythritol, esculin, L- and D-fucose, D-fructose, glucose, gentiobiose, gluconate, 2- and 5-ketogluconate,
glycerol, glycogen, inositol, inulin, D-lyxose, lactose, maltose, mannitol, melezitose, melibiose, mannose, methyl
alpha-D-mannopyranoside, methyl alpha-D-glucopyranoside, methyl alpha-D-xyloside, raffinose, rhamnose, sorbitol, L-sorbose,
starch, salicin, sucrose, D-tagatose, trehalose, turanose, xylitol, D- and L-xylose, N-acetylglucosamine, and methyl
beta-D-xylopyranoside.
(c) Costin Stoica
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