- Wei YX and Gu CT, 2019. Lactobacillus yilanensis sp. nov., Lactobacillus bayanensis sp. nov., Lactobacillus keshanensis sp. nov.,
Lactobacillus kedongensis sp. nov., Lactobacillus baiquanensis sp. nov., Lactobacillus jidongensis sp. nov., Lactobacillus
hulinensis sp. nov., Lactobacillus mishanensis sp. nov. and Lactobacillus zhongbaensis sp. nov., isolated from Chinese
traditional pickle and yogurt. Int J Syst Evol Microbiol 69, 3178-3190. - 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.
| Lactobacillus (Companilactobacillus) keshanensis |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Lactobacillales, Family Lactobacillaceae, Genus Lactobacillus, Lactobacillus
bayanensis Wei and Gu 2019.
Homotypic synonym: Companilactobacillus keshanensis (Wei and Gu 2019) Zheng et al. 2020.
bayanensis Wei and Gu 2019.
Homotypic synonym: Companilactobacillus keshanensis (Wei and Gu 2019) Zheng et al. 2020.
Gram-positive rods, 1/2-3 µm, occurring in pairs or in short chains. Non-motile.
Non-spore-forming.
Non-spore-forming.
Colonies on modified MRS agar are white, convex, smooth with entire edges, 1.0 mm
in diameter after 3 days incubation at 30 ºC. Facultative anaerobe. Grows at
temperature 15 ºC, but not at 37 or 45 ºC (optimally at 30 ºC). Can grow at pH 5.0 and
6.0% NaCl. No growth at pH 11.0 or 6.5% NaCl.
in diameter after 3 days incubation at 30 ºC. Facultative anaerobe. Grows at
temperature 15 ºC, but not at 37 or 45 ºC (optimally at 30 ºC). Can grow at pH 5.0 and
6.0% NaCl. No growth at pH 11.0 or 6.5% NaCl.
Isolated from traditional pickle, in China. Positive tellurite tolerance.
Undetermined.
Homofermentative.
Description is based mostly on API 50 CHL (bioMerieux) results.
Positive results for H2S production, acid production from D-fructose, glucose (without gas production), N-acetylglucosamine, maltose,
and mannose .
Negative results for arginine deamination, catalase, esculin hydrolysis, hippurate hydrolysis, nitrate reduction, nitrite reduction, indole
production, pyrrolidonyl arylamidase, pyruvate utilization, urease, Voges-Proskauer test, acid production from adonitol, amygdalin,
arbutin, D- and L-arabinose, D- and L-arabitol, cellobiose, dulcitol, erythritol, esculin, D- and L-fucose, galactose, gentiobiose,
gluconate, 2- and 5-ketogluconate, glycerol, glycogen, inositol, inulin, D-lyxose, lactose, mannitol, melezitose, melibiose, methyl
alpha-D-glucopyranoside, methyl alpha-D-mannopyranoside, methyl alpha-D-xyloside, raffinose, rhamnose, ribose, salicin, sorbitol,
L-sorbose, starch, sucrose, D-tagatose, turanose, trehalose, xylitol, D- and L-xylose, and methyl beta-D-xylopyranoside.
Description is based mostly on API 50 CHL (bioMerieux) results.
Positive results for H2S production, acid production from D-fructose, glucose (without gas production), N-acetylglucosamine, maltose,
and mannose .
Negative results for arginine deamination, catalase, esculin hydrolysis, hippurate hydrolysis, nitrate reduction, nitrite reduction, indole
production, pyrrolidonyl arylamidase, pyruvate utilization, urease, Voges-Proskauer test, acid production from adonitol, amygdalin,
arbutin, D- and L-arabinose, D- and L-arabitol, cellobiose, dulcitol, erythritol, esculin, D- and L-fucose, galactose, gentiobiose,
gluconate, 2- and 5-ketogluconate, glycerol, glycogen, inositol, inulin, D-lyxose, lactose, mannitol, melezitose, melibiose, methyl
alpha-D-glucopyranoside, methyl alpha-D-mannopyranoside, methyl alpha-D-xyloside, raffinose, rhamnose, ribose, salicin, sorbitol,
L-sorbose, starch, sucrose, D-tagatose, turanose, trehalose, xylitol, D- and L-xylose, and methyl beta-D-xylopyranoside.
(c) Costin Stoica
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