| Paenibacillus brasilensis |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Caryophanales, Family Paenibacillaceae, Genus Paenibacillus, Paenibacillus
brasilensis von der Weid, Frois Duarte, van Elsas and Seldin 2002.
brasilensis von der Weid, Frois Duarte, van Elsas and Seldin 2002.
Gram-positive / variable, straight, motile rods. Produce central / subterminal
ellipsoidal spores in swollen sporangia. The mature spores of the type strain have a
motif of stripes on the surface.
ellipsoidal spores in swollen sporangia. The mature spores of the type strain have a
motif of stripes on the surface.
On GB (glucose broth) agar colonies are 15-30 mm in diameter, whitish, circular to
slightly irregular, convex and mucoid. On TBN (thiamine/biotin/nitrogen) agar,
colonies are about 10 mm in diameter, bright yellow, circular, convex, with entire
margins and they adhere to the agar. TY broth and agar permit poor growth. In GB or
TBN broth, strains grow abundantly, forming a mucous pellet at the bottom of the tube
Grow aerobically and anaerobically. Grow in 2% NaCl but not in 5% NaCl media.
Optimum growth temperature 30-32 ºC, maximum temperature 42 ºC. Can grow at
pH 5.7.
slightly irregular, convex and mucoid. On TBN (thiamine/biotin/nitrogen) agar,
colonies are about 10 mm in diameter, bright yellow, circular, convex, with entire
margins and they adhere to the agar. TY broth and agar permit poor growth. In GB or
TBN broth, strains grow abundantly, forming a mucous pellet at the bottom of the tube
Grow aerobically and anaerobically. Grow in 2% NaCl but not in 5% NaCl media.
Optimum growth temperature 30-32 ºC, maximum temperature 42 ºC. Can grow at
pH 5.7.
Isolated from the rhizosphere of maize sown in Cerrado soil, Minas Gerais, Brazil. Nitrogen-fixing bacteria.
Grow in the presence of 0.001 % lysozyme.
Grow in the presence of 0.001 % lysozyme.
Undetermined.
- Von der Weid I., Frois Duarte G., van Elsas J.D. and Seldin L., 2002. Paenibacillus brasilensis sp. nov., a novel nitrogen-fixing
species isolated from the maize rhizosphere in Brazil. IJSEM 52, 2147-2153. - Priest F.G., 2009. Genus I. Paenibacillus Ash, Priest and Collins 1994. In: (Eds.) P.D. Vos, G. Garrity, D. Jones, N.R. Krieg, W.
Ludwig, F.A. Rainey, K.-H. Schleifer, W.B. Whitman. Bergey’s Manual of Systematic Bacteriology, Volume 3: The Firmicutes,
Springer, 269-295.
Positive results for catalase, citrate utilization, nitrate reduction, hydrolysis of casein, hydrolysis of esculin, hydrolysis of starch,
Voges-Proskauer, acid production from: aesculin, amygdalin, arbutin, cellobiose, D-fructose, galactose, D-glucose (with gas
production), glycogen, lactose, maltose, D-mannitol (with gas production), D-mannose, melibiose, raffinose, ribose, salicin, starch &
sucrose.
Negative results for dihydroxyacetone production, acid production from: N-acetylglucosamine, adonitol, D- or L-arabinose, D- or
L-arabitol, dulcitol, erythritol, D- or L-fucose, gluconate, glycerol, inositol, inulin, 2- or 5-keto-gluconate, D-lyxose, melezitose,
rhamnose, sorbitol, sorbose, xylitol, D- or L-xylose.
Variable results for hydrolysis of gelatin, acid production from: trehalose and beta-gentiobiose.
Voges-Proskauer, acid production from: aesculin, amygdalin, arbutin, cellobiose, D-fructose, galactose, D-glucose (with gas
production), glycogen, lactose, maltose, D-mannitol (with gas production), D-mannose, melibiose, raffinose, ribose, salicin, starch &
sucrose.
Negative results for dihydroxyacetone production, acid production from: N-acetylglucosamine, adonitol, D- or L-arabinose, D- or
L-arabitol, dulcitol, erythritol, D- or L-fucose, gluconate, glycerol, inositol, inulin, 2- or 5-keto-gluconate, D-lyxose, melezitose,
rhamnose, sorbitol, sorbose, xylitol, D- or L-xylose.
Variable results for hydrolysis of gelatin, acid production from: trehalose and beta-gentiobiose.
(c) Costin Stoica
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