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Variation in the second H. pylori strain has little effect on the frequency of recombinants after plate matings with HPK1 (Specr Rifr)
| Second strain | Specr Strepr CFU/107 bacterial pairsa
|
Relative %b | |
|---|---|---|---|
| DNase I absent | DNase I present | ||
| HPK1 (Strepr Kanr) | 169 ± 61 | 22 ± 14 | 13 |
| HPK5 (Strepr pHP1 Kanr) | 112 ± 22 | 12 ± 5 | 11 |
| 84-183 (Strepr Kanr) | 110 ± 24 | 11 ± 6 | 10 |
Mean ± SEM from two to four replicate experiments.
Comparison of results in presence versus absence of DNase I (285 μg/ml).
