| Lactobacillus (Lentilactobacillus) sunkii |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Firmicutes, Class Bacilli, Order Lactobacillales, Family Lactobacillaceae, Genus Lactobacillus, [Group C lactobacilli
(obligately heterofermentative)], Lactobacillus sunkii Watanabe, Fujimoto, Tomii, Sasamoto, Makino, Kudo and Okada 2009.
Homotypic synonym: Lentilactobacillus sunkii (Watanabe et al. 2009) Zheng et al. 2020.
(obligately heterofermentative)], Lactobacillus sunkii Watanabe, Fujimoto, Tomii, Sasamoto, Makino, Kudo and Okada 2009.
Homotypic synonym: Lentilactobacillus sunkii (Watanabe et al. 2009) Zheng et al. 2020.
Gram-positive rods (0.4-0.8 x 1.0-4.0 µm) that occur as single cells, in pairs, or in short
chains. Nonmotile. Nonspore-forming.
chains. Nonmotile. Nonspore-forming.
After anaerobic growth at 30 ºC for 48 hours, colonies on MRS agar are beige, with a
smooth to rough surface, circular to slightly irregular and 1-3 mm in diameter.
Facultatively anaerobic. Can grow at 10 and 30 ºC, but not at 45 ºC. Range of pH
4.0-8.5. Can grow in 5% NaCl (variable), but not in 8% NaCl.
smooth to rough surface, circular to slightly irregular and 1-3 mm in diameter.
Facultatively anaerobic. Can grow at 10 and 30 ºC, but not at 45 ºC. Range of pH
4.0-8.5. Can grow in 5% NaCl (variable), but not in 8% NaCl.
Isolated from non-salted pickle solution used in producing sunki products, Japan.
Undetermined.
- Watanabe K., Fujimoto J., Tomii Y., Sasamoto M., Makino H., Kudo Y. and Okada S., 2009. Lactobacillus kisonensis sp. nov.,
Lactobacillus otakiensis sp. nov., Lactobacillus rapi sp. nov. and Lactobacillus sunkii sp. nov., heterofermentative species
isolated from sunki, a traditional Japanese pickle. IJSEM 59, 754-760. - 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. - Tohno M, Tanizawa Y, Kojima Y, Sakamoto M, Ohkuma M and Kobayashi H, 2021. Lentilactobacillus fungorum sp. nov., isolated
from spent mushroom substrates. Int J Syst Evol Microbiol 71; 005184. DOI: 10.1099/ijsem.0.005184.
Positive results for alkaline phosphatase, arginine hydrolysis (NH3 from arginine), cystine aminopeptidase, esculin hydrolysis (weak),
beta-glucosidase, valine aminopeptidase, fermentation of: L-arabinose, fructose, D-glucose (acid and gas production), gluconate
(weak), maltose, melibiose, raffinose, ribose, and sucrose.
Negative results for catalase, esterase (C4), esterase lipase (C8), alpha-fucosidase, nitrate reduction, fermentation of: adonitol,
amygdalin, D-arabitol, L-arabitol, arbutin, D-arabinose, cellobiose, dulcitol, erythritol, esculin, fucose, galactose, gentiobiose, glycerol,
glycogen, inositol, inulin, D-lyxose, mannose, methyl alpha-D-glucoside, N-acetylglucosamine, rhamnose, salicin, sorbitol, sorbose,
starch, trehalose, turanose, xylitol, and L-xylose.
Variable results for fermentation of: galactose, 2- and 5-ketogluconate, lactose, mannitol, melezitose, methyl beta-xyloside, and
D-xylose.
beta-glucosidase, valine aminopeptidase, fermentation of: L-arabinose, fructose, D-glucose (acid and gas production), gluconate
(weak), maltose, melibiose, raffinose, ribose, and sucrose.
Negative results for catalase, esterase (C4), esterase lipase (C8), alpha-fucosidase, nitrate reduction, fermentation of: adonitol,
amygdalin, D-arabitol, L-arabitol, arbutin, D-arabinose, cellobiose, dulcitol, erythritol, esculin, fucose, galactose, gentiobiose, glycerol,
glycogen, inositol, inulin, D-lyxose, mannose, methyl alpha-D-glucoside, N-acetylglucosamine, rhamnose, salicin, sorbitol, sorbose,
starch, trehalose, turanose, xylitol, and L-xylose.
Variable results for fermentation of: galactose, 2- and 5-ketogluconate, lactose, mannitol, melezitose, methyl beta-xyloside, and
D-xylose.
(c) Costin Stoica
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