Phylum Firmicutes, Class Bacilli, Order Bacillales, Family Paenibacillaceae, Genus Paenibacillus, Paenibacillus septentrionalis
Khianngam, Tanasupawat, Lee, Lee and Akaracharanya, 2009.
Gram-positive, motile rods, 0.5-0.8 x 2-12 µm. Produce ellipsoidal, central /
subterminal spore in swollen sporangium.
Colonies are white, convex, translucent, 0.02-1 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 15-45 ºC. No growth at 10 or 50 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.
- 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, Voges-Proskauer, acid production from: aesculin, D-glucose, glycogen & starch.
Negative results for arginine dihydrolase, citrate utilization, dihydroxyacetone production, DN-ase, oxidase, nitrate reduction,
hydrolysis of casein, hydrolysis of gelatin, indole production, methyl red, degradation of tyrosine, acid production from:
N-acetylglucosamine, adonitol, amygdalin, D- or L-arabinose, arabitol, arbutin, cellobiose, dulcitol, erythritol, fructose, D- or L-fucose,
galactose, beta-gentiobiose, methyl-alpha-D-glucoside, gluconate, glycerol, inositol, inulin, 2- or 5-ketogluconate, lactose, lyxose,
maltose, D-mannitol, mannose, methyl-alpha-D-mannoside, melezitose, melibiose, raffinose, rhamnose, ribose, salicin, sorbitol,
sorbose, sucrose, tagatose, trehalose, turanose, xylitol, D- or L-xylose & methyl-beta-D-xyloside.
(c) Costin Stoica