| Lederbergia ruris |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Caryophanales, Family Bacillaceae, Genus Lederbergia, Lederbergia ruris
(Heyndrickx et al. 2005) Gupta et al. 2020
Synonym: Bacillus ruris Heyndrickx et al 2004.
(Heyndrickx et al. 2005) Gupta et al. 2020
Synonym: Bacillus ruris Heyndrickx et al 2004.
Gram-positive, rods and coccoid rods, 0.5-0.8 x 1.0-2.0 µm, motile. Produce central /
paracentral / subterminal, ellipsoidal endospores in swollen sporangia.
paracentral / subterminal, ellipsoidal endospores in swollen sporangia.
Colonies are creamy / off-white with opaque center, smooth, flat, 1 mm in diameter
after 2 days on TSA; the margins are usually irregular. Alkalitolerant. Grow at pH 8-11
and at 30-40 ºC (no growth at 50 ºC). Aerobic; facultatively anaerobic.
after 2 days on TSA; the margins are usually irregular. Alkalitolerant. Grow at pH 8-11
and at 30-40 ºC (no growth at 50 ºC). Aerobic; facultatively anaerobic.
Isolated from raw milk and feed concentrate from dairy farms.
Undetermined.
- Heyndrickx M., Scheldeman P., Forsyth G., Lebbe L., Rodriguez-Diaz M., Logan N.A. and De Vos P. 2004. Bacillus ruris sp. nov.,
from dairy farms . IJSEM 55, 2551-2554. - Gupta RS, Patel S, Saini N, Chen S. Robust demarcation of 17 distinct Bacillus species clades, proposed as novel Bacillaceae
genera, by phylogenomics and comparative genomic analyses: description of Robertmurraya kyonggiensis sp. nov. and proposal
for an emended genus Bacillus limiting it only to the members of the Subtilis and Cereus clades of species. Int J Syst Evol
Microbiol 2020; 70:5753-5798.
Positive results for beta-galactosidase, nitrate reduction, hydrolysis of esculin, catalase, acid production from: L-arabinose,
N-acetyl-D-glucosamine, D-glucose, D-mannose, starch, fructose, lactose, melibiose, melezitose, sucrose, ribose, trehalose and
D-xylose.
Negative results for arginine dihydrolase, lysine decarboxylase, ornithine decarboxylase, hydrolysis of urea, hydrolysis of gelatin,
indole production, H2S production, hydrolysis of casein, Voges-Proskauer reaction, citrate utilization, acid production from: adonitol,
amygdalin, D-arabinose, D- or L-arabitol, arbutin, dulcitol, erythritol, D- or L-fucose, glycerol, methyl beta-xyloside beta-gentiobiose,
gluconate, myo-inositol, 2- or 5-ketogluconate, lyxose, rhamnose , sorbitol, sorbose and xylitol.
Variable results for cellobiose, glycogen, galactose, D-mannitol, salicin, inulin, maltose and raffinose.
N-acetyl-D-glucosamine, D-glucose, D-mannose, starch, fructose, lactose, melibiose, melezitose, sucrose, ribose, trehalose and
D-xylose.
Negative results for arginine dihydrolase, lysine decarboxylase, ornithine decarboxylase, hydrolysis of urea, hydrolysis of gelatin,
indole production, H2S production, hydrolysis of casein, Voges-Proskauer reaction, citrate utilization, acid production from: adonitol,
amygdalin, D-arabinose, D- or L-arabitol, arbutin, dulcitol, erythritol, D- or L-fucose, glycerol, methyl beta-xyloside beta-gentiobiose,
gluconate, myo-inositol, 2- or 5-ketogluconate, lyxose, rhamnose , sorbitol, sorbose and xylitol.
Variable results for cellobiose, glycogen, galactose, D-mannitol, salicin, inulin, maltose and raffinose.
(c) Costin Stoica
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