| Evansella polygoni |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Caryophanales, Family Bacillaceae, Genus Evansella, Evansella polygoni (Aino et
al. 2008) Gupta et al. 2020.
Synonym: Bacillus polygoni Aino et al. 2008. Description of a single isolate.
al. 2008) Gupta et al. 2020.
Synonym: Bacillus polygoni Aino et al. 2008. Description of a single isolate.
Gram positive, straight rods, 0.4-0.5 x 1.0-3.5 µm. Produce central, ellipsoidal
endospores in unswollen sporangia. Nonmotile.
endospores in unswollen sporangia. Nonmotile.
Colonies are white, circular when grown on PYA medium. Moderately halophilic and
obligately alkaliphilic. Grow at pH 8-12 (optimum pH 9), in 3-14% NaCl media
(optimum 7%) and at 13-47 ºC (optimum 30 ºC). NaCl is required for growth. Aerobic;
no anaerobic growth.
obligately alkaliphilic. Grow at pH 8-12 (optimum pH 9), in 3-14% NaCl media
(optimum 7%) and at 13-47 ºC (optimum 30 ºC). NaCl is required for growth. Aerobic;
no anaerobic growth.
Isolated from indigo balls (fermentation of Polygonum tinctorium / Persicaria tinctoria), Ibaraki, Japan.
Undetermined.
- Aino K., Hirota K., Matsuno T., Morita N., Nodasaka Y., Fujiwara T., Matsuyama H., Yoshimune K. and Yumoto I., 2008. Bacillus
polygoni sp. nov., a moderately halophilic, non-motile obligate alkaliphile isolated from indigo balls. IJSEM 58, 120-124. - 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 catalase, nitrate reduction, beta-galactosidase, hydrolysis of casein, hydrolysis of Tween 20, 40, 60 and 80, acid
production (when grown at pH 10) from: D-arabinose, fructose, D-mannitol, D-mannose, glycerol, D-glucose, myo-inositol, maltose,
raffinose, sucrose and D-xylose.
Negative results for oxidase, indole production H2S production, deamination of phenylalanine, hydrolysis of esculin, hydrolysis of
hippurate, hydrolysis of gelatin, hydrolysis of starch, hydrolysis of cellulose, hydrolysis of xylan, acid production (when grown at pH 10)
from: erythritol, galactose, lactose, melibiose, rhamnose, sorbitol, salicin and xylitol.
production (when grown at pH 10) from: D-arabinose, fructose, D-mannitol, D-mannose, glycerol, D-glucose, myo-inositol, maltose,
raffinose, sucrose and D-xylose.
Negative results for oxidase, indole production H2S production, deamination of phenylalanine, hydrolysis of esculin, hydrolysis of
hippurate, hydrolysis of gelatin, hydrolysis of starch, hydrolysis of cellulose, hydrolysis of xylan, acid production (when grown at pH 10)
from: erythritol, galactose, lactose, melibiose, rhamnose, sorbitol, salicin and xylitol.
(c) Costin Stoica
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