| Azomonas agilis |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Pseudomonadota (Proteobacteria), Class Gammaproteobacteria, Order Pseudomonadales, Family Pseudomonadaceae,
Genus Azomonas, Azomonas agilis (Beijerinck 1901) Winogradsky 1938, type species of the genus.
Basonym: Azotobacter agilis Beijerinck 1901.
Genus Azomonas, Azomonas agilis (Beijerinck 1901) Winogradsky 1938, type species of the genus.
Basonym: Azotobacter agilis Beijerinck 1901.
Gram-negative or Gram-variable, ellipsoidal- to rod-shaped cells depending on age,
2.0 x 2.5-3.5 µm, occuring singly, in pairs, or in clumps. Motile by lophotrichous
flagella that tend to bind together to form thick, whip-like structures. Cysts are not
formed.
2.0 x 2.5-3.5 µm, occuring singly, in pairs, or in clumps. Motile by lophotrichous
flagella that tend to bind together to form thick, whip-like structures. Cysts are not
formed.
Colonies are 2-6 mm in diameter (after several days incubation at 30 ºC), oopaque,
low convex, butyrous, and usually mucoid. glistening, and smooth. Produce a
yellow-green visible, blue-white fluorescent pigment (azoverdin) when grown in
iron-deficient medium. Azoverdin is produced in Fe-limited cultures grown at 28 ºC but
not at 34 ºC. Optimum temperature for growth is approximately 30-37 ºC; minimum 14
ºC. Variable growth at 9 ºC. Grows aerobically and microaerobically.
low convex, butyrous, and usually mucoid. glistening, and smooth. Produce a
yellow-green visible, blue-white fluorescent pigment (azoverdin) when grown in
iron-deficient medium. Azoverdin is produced in Fe-limited cultures grown at 28 ºC but
not at 34 ºC. Optimum temperature for growth is approximately 30-37 ºC; minimum 14
ºC. Variable growth at 9 ºC. Grows aerobically and microaerobically.
Isolated from water.
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.
Positive results for catalase and oxidase.
Can utilize: fructose, glucose, sucrose, acetate, pyruvate, fumarate, malate, succinate, alpha-oxoglutarate, lactate, DL-gluconate,
acetyl methyl carbinol, trehalose, caproate, malonate, mucate, benzoate, catechol, 4-hydroxybenzoate, naphthalene, protocatechuate,
and 4-toluate.
Negative results for urease activity.
No utilization of: D-galactose, sorbitol, raffinose, glutarate, benzoate, melezitose and mannitol.
Variable utilization of maltose.
Can utilize: fructose, glucose, sucrose, acetate, pyruvate, fumarate, malate, succinate, alpha-oxoglutarate, lactate, DL-gluconate,
acetyl methyl carbinol, trehalose, caproate, malonate, mucate, benzoate, catechol, 4-hydroxybenzoate, naphthalene, protocatechuate,
and 4-toluate.
Negative results for urease activity.
No utilization of: D-galactose, sorbitol, raffinose, glutarate, benzoate, melezitose and mannitol.
Variable utilization of maltose.
(c) Costin Stoica
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