| Lactobacillus (Lapidilactobacillus) dextrinicus |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Lactobacillales, Family Lactobacillaceae, Genus Lactobacillus, Lactobacillus
dextrinicus (Coster and White, 1964) Haakensen et al. 2009.
Homotypic synonyms: Lapidilactobacillus dextrinicus (Coster and White, 1964) Zheng et al. 2020, Pediococcus dextrinicus (Coster
and White, 1964) Back 1978.
dextrinicus (Coster and White, 1964) Haakensen et al. 2009.
Homotypic synonyms: Lapidilactobacillus dextrinicus (Coster and White, 1964) Zheng et al. 2020, Pediococcus dextrinicus (Coster
and White, 1964) Back 1978.
Gram-positive spherical cells, 0.8-1.1 µm in diameter, occurring singly, in pairs, short
chains and irregular clusters. Non-motile. Non-spore-forming.
chains and irregular clusters. Non-motile. Non-spore-forming.
Colonies are raised to slightly convex, smooth, opaque, unpigmented to
grayish-white, glistening and 0.5-2.0 mm in diameter on MRS agar after 48 h at 28 ºC;
good growth in MRS broth between 16 and 24 hours. Optimum growth temperature
32 ºC. Can grow at 8-43 ºC. Grows in 0-5.5% NaCl. No growth in 6.5% NaCl medium.
PH range 4.7-8.3, no growth at pH 4.5. Facultative anaerobe.
grayish-white, glistening and 0.5-2.0 mm in diameter on MRS agar after 48 h at 28 ºC;
good growth in MRS broth between 16 and 24 hours. Optimum growth temperature
32 ºC. Can grow at 8-43 ºC. Grows in 0-5.5% NaCl. No growth in 6.5% NaCl medium.
PH range 4.7-8.3, no growth at pH 4.5. Facultative anaerobe.
Isolated from beer, beer bottles, silage and spent grains.
Undetermined.
- Back W, 1978. Elevation of Pediococcus cerevisiae subsp. dextrinicus Coster and White to Species Status [Pediococcus
dextrinicus (Coster and White) comb. nov.]. Int J Syst Bacteriol 28(4), 523-527. - Haakensen M, Dobson MC, Hill JE and Ziola B, 2009. Reclassification of Pediococcus dextrinicus (Coster and White 1964) Back
1978 (Approved Lists 1980) as Lactobacillus dextrinicus comb. nov., and emended description of the genus Lactobacillus. Int J
Syst Evol Microbiol 59, 615-621. - 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.
Positive results for esculin hydrolysis, starch hydrolysis, fermentation of amygdalin, cellobiose, dextrin, fructose, galactose, gluconate
(with gas production), glucose (without gas production), maltose, mannose, salicin, and starch. Produces L(+)-lactic acid from
glucose via a fructose-1,6-diphosphate FDP inducible L-lactate dehydrogenase.
Negative results for ammonia production from arginine, catalase, gelatin hydrolysis, hippurate hydrolysis, nitrate reduction, urease,
fermentation of adonitol, arabinose, dulcitol, erythritol, glycerol, inositol, mannitol, melezitose, melibiose, raffinose, rhamnose, ribose,
sorbitol, sorbose, xylitol, and xylose.
Variable results for Voges-Proskauer test, fermentation of inulin, lactose, sucrose, trehalose, and alpha-methyl-D-glucoside.
(with gas production), glucose (without gas production), maltose, mannose, salicin, and starch. Produces L(+)-lactic acid from
glucose via a fructose-1,6-diphosphate FDP inducible L-lactate dehydrogenase.
Negative results for ammonia production from arginine, catalase, gelatin hydrolysis, hippurate hydrolysis, nitrate reduction, urease,
fermentation of adonitol, arabinose, dulcitol, erythritol, glycerol, inositol, mannitol, melezitose, melibiose, raffinose, rhamnose, ribose,
sorbitol, sorbose, xylitol, and xylose.
Variable results for Voges-Proskauer test, fermentation of inulin, lactose, sucrose, trehalose, and alpha-methyl-D-glucoside.
(c) Costin Stoica
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