| Azotobacter armeniacus |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Proteobacteria, Class Gammaproteobacteria, Order Pseudomonadales, Family Pseudomonadaceae, Genus Azotobacter,
Azotobacter armeniacus Thompson and Skerman 1981.
Azotobacter armeniacus Thompson and Skerman 1981.
Gram-negative, blunt rod to ellipsoid form, 1.6-2.7 x 3.0-7.0 µm. Cysts are formed in
old cultures. Motile by peritrichous flagella.
old cultures. Motile by peritrichous flagella.
Colonies are opaque, mucoid, and more highly convex than those of other species.
Brown-black to red-violet water-soluble pigments are produced. Grows at 32 ºC,
variable growth at 18 and 37 ºC. Aerobic.
Brown-black to red-violet water-soluble pigments are produced. Grows at 32 ºC,
variable growth at 18 and 37 ºC. Aerobic.
Isolated from soil in Armenia.
Undetermined.
- George M. Garrity, Julia A. Bell & Timothy Lilburn: Order IX Pseudomonadales Orla-Jensen 1921 In: Bergey’s Manual of
Systematic Bacteriology, Second edition,Vol two, part B, George M. Garrity (Editor-in-Chief), 2005, pp. 323-442. - John G. Holt, Noel R. Krieg, Petere H.A. Sneath, James T. Staley, Stanley T. Williams, 1994. Bergey's Manual of Determinative
Bacteriology, Ninth edition. Genus Azotobacter, 77.
Positive results for catalase and urease.
Can utilize D-galacturonate, fructose, glucose, acetate, pyruvate, fumarate, malate, succinate, alpha-oxoglutarate, lactate, DL-gluconate,
acetyl methylcarbinol, mannitol, caprylate, meso-inositol, n-butyrate, DL-beta-hydroxybutyrate, melibiose, maltose, sorbitol, and
trehalose.
Negative results for gelatinase, H2S production, starch hydrolysis, and nitrate reduction to nitrites.
No utilization of arabinose, benzoate, D-gucuronate, glycolate, phenol, rhamnose, caproate, malonate, 1-propanol, glycerol, beta-
phenylpropionate, lactose, mannose, xylose, ribose, fucose, and 1-butanol.
Variable results for peroxidase, oxidase, utilization of glutarate, sucrose, propionate, and raffinose.
Can utilize D-galacturonate, fructose, glucose, acetate, pyruvate, fumarate, malate, succinate, alpha-oxoglutarate, lactate, DL-gluconate,
acetyl methylcarbinol, mannitol, caprylate, meso-inositol, n-butyrate, DL-beta-hydroxybutyrate, melibiose, maltose, sorbitol, and
trehalose.
Negative results for gelatinase, H2S production, starch hydrolysis, and nitrate reduction to nitrites.
No utilization of arabinose, benzoate, D-gucuronate, glycolate, phenol, rhamnose, caproate, malonate, 1-propanol, glycerol, beta-
phenylpropionate, lactose, mannose, xylose, ribose, fucose, and 1-butanol.
Variable results for peroxidase, oxidase, utilization of glutarate, sucrose, propionate, and raffinose.
(c) Costin Stoica
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