| Bacillus rhizoplanae |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Caryophanales, Family Bacillaceae, Genus Bacillus, Bacillus rhizoplanae Kampfer
et al. 2022.
Species description is based on a single isolate.
et al. 2022.
Species description is based on a single isolate.
Gram-positive rods with rounded ends, 1.0 x 3.0-4.0 µm. Non-motile. Produce central
ellipsoidal endospores.
ellipsoidal endospores.
Colonies after 48h of incubation on TSA are circular, convex and beige with a shiny
appearance, 2-3 mm in diameter. Grows at 28 ºC on R2A, NB, TSA, malt agar, PYE,
CASO agar, K7 agar, M65 agar, DEV agar, NA, LB agar and Columbia agar with
sheep blood. No growth on MA and MacConkey agar. Growth occurs at 10-36 ºC
(optimally at 28-30 ºC,) at pH 5.5-9.5 (optimally at pH 7-8) and at 0-3% (w/v) NaCl
(optimally at 0-1% NaCl). Aerobic.
appearance, 2-3 mm in diameter. Grows at 28 ºC on R2A, NB, TSA, malt agar, PYE,
CASO agar, K7 agar, M65 agar, DEV agar, NA, LB agar and Columbia agar with
sheep blood. No growth on MA and MacConkey agar. Growth occurs at 10-36 ºC
(optimally at 28-30 ºC,) at pH 5.5-9.5 (optimally at pH 7-8) and at 0-3% (w/v) NaCl
(optimally at 0-1% NaCl). Aerobic.
Isolated from the root surface of maize (Zea mays) in Dunbar, Nebraska, USA.
Undetermined.
- Kampfer P, Lipski A, McInroy JA, Clermont D, Criscuolo A, Glaeser SP. Bacillus rhizoplanae sp. nov. from maize roots. Int J Syst Evol
Microbiol 2022; 72:5450.
Positive results for acid and alkaline phosphatase, catalase, esterase (C4), esterase lipase (C8), esculin hydrolysis, leucine
arylamidase, nitrate reduction, naphthol-AS-BI-phosphohydrolase, oxidase, Voges-Proskauer test, acid production from:
N-acetylglucosamine, cellobiose, D-fructose, D-glucose (negative in API 20 NE), glycogen, maltose and starch.
Can assimilate (APi 20NE): D-glucose, N-acetylglucosamine, maltose and malic acid.
Can utilize as sole carbon source: N-acetyl-D-glucosamine, L-arabinose (weak), cellobiose, D-fructose, glucose, maltose, acetate,
propionate, fumarate, glutarate, DL-malate, lactate, putrescine and pyruvate.
Negative results for arginine dihydrolase, alpha-chymotrypsin, alpha-fucosidase, gelatin hydrolysis, alpha- and beta-galactosidase,
alpha- and beta-glucosidase, beta-glucuronidase, H2S production, indole production, lipase (C14), alpha-mannosidase,
N-acetyl-beta-glucosaminidase, lysine decarboxylase, ornithine decarboxylase, starch hydrolysis, trypsin, alpha-chymotrypsin,
tryptophan deaminase, urease, valine arylamidase, acid production from: D-adonitol, arbutin, D- and L-arabinose, D- and L-arabitol,
dulcitol, erythritol, D- and L-fucose, D-galactose, gentiobiose, gluconate, 2- and 5-ketogluconate, inositol, inulin, lactose, D-lyxose,
D-mannose, D-mannitol, melezitose, melibiose, methyl alpha-D-mannopyranoside, raffinose, L-rhamnose, D-ribose, salicin,
D-sorbitol, L-sorbose, sucrose, D-tagatose, trehalose, methyl beta-D-xylopyranoside, xylitol, D- and L-xylose.
No assimilation of: potassium gluconate, L-arabinose, D-mannose, D-mannitol, capric acid, adipic acid, trisodium citrate and
phenylacetic acid.
No utilization of: arbutin, D-galactose, D-gluconate, i-inositol, D-mannose, melibiose, ribose, trehalose, D-maltitol salicin, sucrose,
d-sorbitol, D-xylose, cis-aconitate, trans-aconitate, adipate, D-adonitol, 4-aminobutyrate, azelate, citrate, itaconate, mesaconate,
2-oxoglutarate and L-rhamnose.
arylamidase, nitrate reduction, naphthol-AS-BI-phosphohydrolase, oxidase, Voges-Proskauer test, acid production from:
N-acetylglucosamine, cellobiose, D-fructose, D-glucose (negative in API 20 NE), glycogen, maltose and starch.
Can assimilate (APi 20NE): D-glucose, N-acetylglucosamine, maltose and malic acid.
Can utilize as sole carbon source: N-acetyl-D-glucosamine, L-arabinose (weak), cellobiose, D-fructose, glucose, maltose, acetate,
propionate, fumarate, glutarate, DL-malate, lactate, putrescine and pyruvate.
Negative results for arginine dihydrolase, alpha-chymotrypsin, alpha-fucosidase, gelatin hydrolysis, alpha- and beta-galactosidase,
alpha- and beta-glucosidase, beta-glucuronidase, H2S production, indole production, lipase (C14), alpha-mannosidase,
N-acetyl-beta-glucosaminidase, lysine decarboxylase, ornithine decarboxylase, starch hydrolysis, trypsin, alpha-chymotrypsin,
tryptophan deaminase, urease, valine arylamidase, acid production from: D-adonitol, arbutin, D- and L-arabinose, D- and L-arabitol,
dulcitol, erythritol, D- and L-fucose, D-galactose, gentiobiose, gluconate, 2- and 5-ketogluconate, inositol, inulin, lactose, D-lyxose,
D-mannose, D-mannitol, melezitose, melibiose, methyl alpha-D-mannopyranoside, raffinose, L-rhamnose, D-ribose, salicin,
D-sorbitol, L-sorbose, sucrose, D-tagatose, trehalose, methyl beta-D-xylopyranoside, xylitol, D- and L-xylose.
No assimilation of: potassium gluconate, L-arabinose, D-mannose, D-mannitol, capric acid, adipic acid, trisodium citrate and
phenylacetic acid.
No utilization of: arbutin, D-galactose, D-gluconate, i-inositol, D-mannose, melibiose, ribose, trehalose, D-maltitol salicin, sucrose,
d-sorbitol, D-xylose, cis-aconitate, trans-aconitate, adipate, D-adonitol, 4-aminobutyrate, azelate, citrate, itaconate, mesaconate,
2-oxoglutarate and L-rhamnose.
(c) Costin Stoica
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