PROTEOBACTERIA >> Gamma >> Pasteurella >> Pasteurella testudinis
PASTEURELLA TESTUDINIS
| Class: | Gamma Proteobacteria |
| Genus: | Pasteurella |
| Species: | Pasteurella testudinis |
| Description: | Gram-negative, nonmotile, nonsporeforming, pleomorphic rods, 0.2 by 1.5 to 2.0μm; the majority of the strains appear to possess capsule-like surface layers. Surface colonies on sheep blood agar are white, mucoid, and approximately 0.5 to 1.0 mm in diameter after 24 to 48 h of incubation at 37 or 20°C; colonies on sheep blood agar regularly produce a beta-hemolytic zone. Atmospheric requirements: facultatively anaerobic; extra CO2 not required for growth in air. |
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| Source: | isolated from pneumonic lesions, abscesses, and gastrointestinal tracts of California desert tortoises. |
| Pathogenicity: | Associated with multifocal bronchopneumonia in California desert tortois- es. The disease is not highly contagious under experimental conditions, and the bacterium appears to be commensal in healthy free-ranging tortoises. Some strains are pathogenic for mice when inoculated intraperitoneally or intranasally. |
| Genbank: | AY362926.1(16s rRNA) [Genome] [Nucleotide] |
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| Reference: | SNIPES (K.P.) and BIBERSTEIN (E.L.): Pasteurella testudinis sp. nov.: a parasite of desert tortoises (Gopherus agassizi). Int. J. Syst. Bacteriol., 1982, 32, 201-210. |
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