Lactobacillus koreensis
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Firmicutes, Class Bacilli, Order Lactobacillales, Family Lactobacillaceae, Genus Lactobacillus, Lactobacillus koreensis  Bui,
Kim, In and Yang 2011.

Homotypic synonym:
Levilactobacillus koreensis (Bui et al. 2011) Zheng et al. 2020.
S
pecies description is based on a single isolate.
Gram-positive, curved rods, 1.4-2.0 x 3.0-5.0 µm. Motile. Non-spore-forming.
Colonies on MRS agar are beige, convex, smooth , smaller than 1 mm in diameter
after 1 day. Facultatively anaerobic. Can grow at  10
and 37 ºC, but not at 45 ºC.
Optimum pH
4.5-6.5. Can grow at pH 10; no growth at pH 4.0. Can grow in 1% and
7% NaCl, no growth in 8% NaCl.
Isolated from the traditional Korean food kimchi.
Undetermined.
  1. Bui T.P.N., Kim Y.J., In J.G. and Yang D.C., 2011. Lactobacillus koreensis sp. nov., isolated from the traditional Korean food
    kimchi. IJSEM 61, 772-776.
  2. Lin ST, Wang LT, Wang HM, Tamura T, Mori K, Huang L and Watanabe K, 2020. Lactobacillus suantsaicola sp. nov. and
    Lactobacillus suantsaiihabitans sp. nov., isolated from suan-tsai, a traditional fermented mustard green product of Taiwan. Int J
    Syst Evol Microbiol 70, 2972-2980.
  3. 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. Lactic acid and acetic acid but not ethanol are detected as metabolic end products from glucose.

Positive results for acid phosphatase, esterase (C4), esterase lipase (C8), esculin hydrolysis, alpha- and beta-galactosidase, alpha-
abd beta-glucosidase, leucine arylamidase, valine arylamidase, fermentation of: L-arabinose (weak), esculin, galactose, glucose
(acid and gas), gluconate (acid and gas), melibiose, ribose (weak), and D-xylose.

Negative results for alkaline phosphatase, arginine hydrolysis (NH3 from arginine), catalase, citrate utilization, cystine arylamidase,
alpha-fucosidase, gelatin hydrolysis, beta-glucuronidase, N-acetyl-beta-glucosaminidase, H2S production, indole production, lipase
(C14), lysine decarboxilase, alpha-mannosidase, naphthol-AS-BI-phosphohydrolase, ornithine decarboxilase, tryptophane
deaminase, trypsin, alpha-chymotrypsin, urease, Voges-Proskauer test, fermentation of:
methyl alpha-D-glucopyranoside, methyl
alpha-D-mannopyranoside, methyl beta-D-xylopyranoside, arbutin, adonitol, D-arabinose, L-arabitol, cellobiose, dulcitol,erythritol,
D-
and L -fucose,
glycerol, glycogen, gentibiose, inositol, inulin, 2- and 5-ketogluconate, D-lyxose, lactose, maltose, mannitol, D-
mannose, raffinose, L-sorbose,
starch, D-tagatose, trehalose, turanose, xylitol, and L-xylose.

Variable results for the fermentation of D-arabitol, fructose and N-acetylglucosamine.
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