Table 1 Growth and morphotype switching of 3 isogenic morphotypes derived from 5 B. pseudomallei isolates following incubation in low oxygen and anaerobic conditions
|  | Atmospheric conditions during incubation at 37°C | ||||||||
|---|---|---|---|---|---|---|---|---|---|
Starting type | Air for 4 days (control) | 5-15% oxygen for 14 days | Reincubated in air for 4 days following anaerobic conditions for 14 days | ||||||
| Â | Mean colony count, (range) | *Morphotype, % (range) | Mean % colony count compared with control in air (range) | *Morphotype, % (range) | Mean % colony count compared to control in air (range) | *Morphotype, % (range) | |||
I (parental) | 101 (93-106) | I | 100% | 92% (78-108%) | I | 100% | 86% (57-138%) | I | 100% |
II | 90 (62-150) | II | 100% | 91% (72-109%) | II | 100% | 95% (66-127%) | II | 100% |
III | 123 (110-141) | III | 89% (81-98%) | 98% (78-107%) | III | 89% (81-99%) | 80% (48-94%) | III | 17% (0-85%) |
| Â | Â | I or II | 11% (2-19%) | Â | I or II | 11% (1-19%) | Â | I or II | 83% (15-100%) |