Phylum Firmicutes, Class Bacilli, Order Lactobacillales, Family Lactobacillaceae, Genus Lactobacillus, Lactobacillus namurensis
Scheirlinck, Van der Meulen, Van Schoor, Cleenwerck, Huys, Vandamme, De Vuyst and Vancanneyt 2005.
Gram-positive rods, 0.5-1.0/2.0-10 µm, occuring singly or in pairs. Nonmotile.
Colonies are beige, circular with an irregular surface, and 0.5-1 mm in diameter on
MRS5 agar, after 2 days of incubation. Aerobic and anaerobic growth. Can grow at
10-40 ºC, but not at 45 ºC. Can grow in 1-6% NaCl (variable growth in 7% NaCl).
Grows at pH pH 3-10.
Isolated from an artisanal sourdough manufactured with wheat, rye and spelt flour in the province of Namur, Belgium.
- Scheirlinck I., Van der Meulen R., Van Schoor A., Cleenwerck I., Huys G., Vandamme P., De Vuyst L. and Vancanneyt M., 2005.
Lactobacillus namurensis sp. nov., isolated from a traditional Belgian sourdough. IJSEM 57, 223-227.
- Guu JR, Wang LT, Hamada M, Wang C, Lin RW, Huang L and Watanabe K, 2018. Lactobacillus bambusae sp. nov., isolated from
traditional fermented ma bamboo shoots in Taiwan. Int J Syst Evol Microbiol 68, 2424-2430.
Both D- and L-lactate are produced in equimolar amounts and glucose is metabolized heterofermentatively.
Positive results for arginine hydrolysis, acid phosphatase, alkaline phosphatase, alpha-chymotrypsin, cystine arylamidas, esterase
C4, esterase lipase C8, esculin hydrolysis, alpha- and beta-galactosidase, alpha- and beta-glucosidase, leucine arylamidase,
valine arylamidase, Voges-Proskauer fermentation of: aesculin, fructose, galactose, glucose (acid & gas), maltose, and methyl
Negative results for catalase, alpha-fucosidase, gelatin hydrolysis, beta-glucuronidase, N-acetyl-beta-glucosaminidase, H2S
production, indole production, lipase C14, alpha-mannosidas, trypsin, urease, fermentation of: adonitol, amygdalin, arbutin, L- or
D-arabinose, L- or D-arabitol, cellobiose, dulcitol, erythritol, D,L-fucose, gentiobiose, glycerol, glycogen, inositol, inulin, 2- or
5-ketogluconate, lactose, lyxose, mannose, melezitose, raffinose, rhamnose, salicin, sorbitol, sorbose, starch, sucrose, tagatose,
trehalose, turanose, xylose, and methyl alpha-D-glucopyranoside.
Variable results for N-acetylglucosamine, gluconate (with gas production), mannitol, melibiose, and ribose
(c) Costin Stoica