| Bacillus taxi |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Caryophanales, Family Bacillaceae, Genus Bacillus, Bacillus taxi Tuo et al. 2020.
Synonym: Niallia taxi (Tuo et al. 2020) Gupta et al. 2020.
Species description is based on a single isolate.
Synonym: Niallia taxi (Tuo et al. 2020) Gupta et al. 2020.
Species description is based on a single isolate.
Gram-positive, rods 0.9-1.6 x 1.3-12.5 µm. Produce ellipsoidal endospores in swollen
sporangia.
sporangia.
Colonies are white, non-pigmented, circular, smooth and entire on TSA after 7days.
Growth occurs at 10-45 ºC (optimum 30 ºC), at pH 6-12 (optimum pH 7-8) and in
0-2% (w/v) NaCl (optimum 2% NaCl). Aerobic.
Growth occurs at 10-45 ºC (optimum 30 ºC), at pH 6-12 (optimum pH 7-8) and in
0-2% (w/v) NaCl (optimum 2% NaCl). Aerobic.
Isolated from surface-sterilized root of Taxus chinensis (Pilger) Rehd. in Guizhou, PR China.
Undetermined.
- Tuo L, Liu F, Yan XR, Liu Y. Bacillus taxi sp. nov., a novel endophytic bacterium isolated from root of Taxus chinensis (Pilger) Rehd.
Int J Syst Evol Microbiol 2020; 70:481-486. - 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 acid and alkaline phosphatase, alpha-chymotrypsin, catalase, esterase (C4), esterase lipase (C8), alpha-and beta-
galactosidase, alpha-glucosidase (weakly), beta-glucosidase, gelatinase, leucine arylamidase, naphthol-AS-BI-phosphohydrolase,
oxidase, starch hydrolysis, acid production from: N-acetylglucosamine, aesculin, amygdalin, D-arabitol, L-arabinose (weakly), arbutin,
cellobiose, D-fructose, D-gentiobiose, gluconate, D-glucose, glycerol (weakly), inositol, 5-ketogluconate, maltose, mannitol, D-
mannose, melezitose, melibiose, methyl alpha-D-glucopyranoside, methyl alpha-D-mannopyranoside (weakly), methyl beta-D-
xylopyranoside (weakly), raffinose, D-ribose, L-rhamnose, salicin, sucrose, sorbitol, starch, trehalose, turanose, and D-xylose.
Negative results for caseinase (skimmed milk), cystine arylamidase, alpha-fucosidase, beta-glucuronidase, H2S production, lipase
(C14), alpha-mannosidase, methyl red test, N-acetyl-beta-glucosaminidase, urease, Tweens 20, 40 and 80 hydrolysis, trypsin, valine
arylamidase, acid production from: D-adonitol, L-arabitol, D-arabinose, dulcitol, erythritol, D- and L-fucose, D-galactose, glycogen,
inulin, 2-ketogluconate, lactose, D-lyxose, L-sorbose, D-tagatose, xylitol or L-xylose.
No assimilation of: N-acetyl-D-glucosamine, adipate, L-arabinose, capric acid, citrate, D-glucose, malic acid, maltose, D-mannitol, D-
mannose, phenylacetate and potassium gluconate.
galactosidase, alpha-glucosidase (weakly), beta-glucosidase, gelatinase, leucine arylamidase, naphthol-AS-BI-phosphohydrolase,
oxidase, starch hydrolysis, acid production from: N-acetylglucosamine, aesculin, amygdalin, D-arabitol, L-arabinose (weakly), arbutin,
cellobiose, D-fructose, D-gentiobiose, gluconate, D-glucose, glycerol (weakly), inositol, 5-ketogluconate, maltose, mannitol, D-
mannose, melezitose, melibiose, methyl alpha-D-glucopyranoside, methyl alpha-D-mannopyranoside (weakly), methyl beta-D-
xylopyranoside (weakly), raffinose, D-ribose, L-rhamnose, salicin, sucrose, sorbitol, starch, trehalose, turanose, and D-xylose.
Negative results for caseinase (skimmed milk), cystine arylamidase, alpha-fucosidase, beta-glucuronidase, H2S production, lipase
(C14), alpha-mannosidase, methyl red test, N-acetyl-beta-glucosaminidase, urease, Tweens 20, 40 and 80 hydrolysis, trypsin, valine
arylamidase, acid production from: D-adonitol, L-arabitol, D-arabinose, dulcitol, erythritol, D- and L-fucose, D-galactose, glycogen,
inulin, 2-ketogluconate, lactose, D-lyxose, L-sorbose, D-tagatose, xylitol or L-xylose.
No assimilation of: N-acetyl-D-glucosamine, adipate, L-arabinose, capric acid, citrate, D-glucose, malic acid, maltose, D-mannitol, D-
mannose, phenylacetate and potassium gluconate.
(c) Costin Stoica
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