| Paenibacillus siamensis |
Taxonomy
Morphology
Cultural characterisics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Caryophanales, Family Paenibacillaceae, Genus Paenibacillus, Paenibacillus
siamensis Khianngam, Tanasupawat, Lee, Lee and Akaracharanya, 2009.
siamensis Khianngam, Tanasupawat, Lee, Lee and Akaracharanya, 2009.
Gram-positive, motile rods, 0.5-0.8 x 2-11 µm. Produce ellipsoidal, central /
subterminal spore in swollen sporangium.
subterminal spore in swollen sporangium.
Colonies are white, circular or oval, flat, undulate, opaque, 0.05-2.5 mm in diameter
on C agar (5 g peptone Difco, 1 g yeast extract Difco, 4 g K2HPO4, 1 g MgSO4 * 7H2O,
0.2 g KCl,0.02 g FeSO4 * 7H2O and 1000 ml distilled water and adjusted to pH 7.0).
Aerobic and anaerobic growth. Growth temperature 15-50 ºC. No growth at 10 or 55
ºC. Can grow in 3 and 5% NaCl. Grow at pH 7-9 but not at pH 5-6. No growth on TSI
agar.
on C agar (5 g peptone Difco, 1 g yeast extract Difco, 4 g K2HPO4, 1 g MgSO4 * 7H2O,
0.2 g KCl,0.02 g FeSO4 * 7H2O and 1000 ml distilled water and adjusted to pH 7.0).
Aerobic and anaerobic growth. Growth temperature 15-50 ºC. No growth at 10 or 55
ºC. Can grow in 3 and 5% NaCl. Grow at pH 7-9 but not at pH 5-6. No growth on TSI
agar.
The type strain was isolated from mountain soil in Thailand.
Undetermined.
- Khianngam S., Tanasupawat S., Lee J.-S., Lee K.C. and Akaracharanya A., 2009. Paenibacillus siamensis sp. nov., Paenibacillus
septentrionalis sp. nov. and Paenibacillus montaniterrae sp. nov., xylanase-producing bacteria from Thai soils. IJSEM 59,130-134.
Positive results for xylanase, catalase, hydrolysis of esculin, hydrolysis of starch, hydrolysis of Tween 80, hydrolysis of urea, oxidase,
Voges-Proskauer, acid production from: aesculin, amygdalin, L-arabinose, cellobiose, galactose, beta-gentiobiose, glycogen,
methyl-alpha-D-glucoside, lactose, maltose, D-mannitol, melibiose, raffinose, rhamnose, ribose, salicin, starch, sucrose, trehalose,
turanose, D-xylose and methyl-beta-D-xyloside.
Negative results for arginine dihydrolase, citrate utilization, dihydroxyacetone production, hydrolysis of casein, DN-ase, hydrolysis of
gelatin, methyl red, nitrate reduction, indole production, degradation of tyrosine, acid production from: N-acetylglucosamine, adonitol,
D-arabinose, arabitol, arbutin, dulcitol, erythritol, fructose, D- or L-fucose, gluconate, D-glucose, glycerol, inositol, inulin, 2- or
5-ketogluconate, lyxose, mannose, methyl-alpha-D-mannoside, melezitose, sorbitol, sorbose, tagatose, xylitol and L-xylose.
Voges-Proskauer, acid production from: aesculin, amygdalin, L-arabinose, cellobiose, galactose, beta-gentiobiose, glycogen,
methyl-alpha-D-glucoside, lactose, maltose, D-mannitol, melibiose, raffinose, rhamnose, ribose, salicin, starch, sucrose, trehalose,
turanose, D-xylose and methyl-beta-D-xyloside.
Negative results for arginine dihydrolase, citrate utilization, dihydroxyacetone production, hydrolysis of casein, DN-ase, hydrolysis of
gelatin, methyl red, nitrate reduction, indole production, degradation of tyrosine, acid production from: N-acetylglucosamine, adonitol,
D-arabinose, arabitol, arbutin, dulcitol, erythritol, fructose, D- or L-fucose, gluconate, D-glucose, glycerol, inositol, inulin, 2- or
5-ketogluconate, lyxose, mannose, methyl-alpha-D-mannoside, melezitose, sorbitol, sorbose, tagatose, xylitol and L-xylose.
(c) Costin Stoica
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