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 | ||||||
| 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%) |
|
I or II |
11% (2-19%) | I or II |
11% (1-19%) |
I or II |
83% (15-100%) | ||||