Table 6.
Growth of nontoxic isolates, NCTC8266Δbont::ermB and NCTC11219Δbont::ermB in RCM broth acidified with 1 M HCl to pH 4.94–5.25. Growth was monitored for 21 days for three replicates per strain.
| Days to Growth (OD620 > 0.15) at Different pH Levels for at Least One Replicate | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Strain | pH | Strain | pH | ||||||
| 4.94 | 5.05 | 5.12 | 5.25 | 4.94 | 5.05 | 5.12 | 5.25 | ||
| NCTC11219 Δbont::ermB | 5 | 4 | 2 | 1 | ZS2 | 2 | 1 | ||
| VAP23 | 5 | 2 | 1 | ZBS12 | 2 | 1 | |||
| CH2 | 5 | 2 | 1 | ZS1 | 2 | 1 | |||
| VAP33 | 5 | 2 | 1 | ZBS3 | 2 | 1 | |||
| EV3 | 5 | 2 | 1 | DSM1985 | 2 | 1 | |||
| KO2 | 5 | 3 | 1 | ZBS20 | 2 | 1 | |||
| RO3 | 6 | 2 | 1 | ZBS18 | 2 | 1 | |||
| RO132 | 7 | 2 | 1 | ZBS2 | 2 | 2 | |||
| ME22 | 7 | 2 | 1 | NCTC8266 Δbont::ermB | 1 | ||||
| ZBS4 | 7 | 2 | 1 | ZBS14 | 1 | ||||
| CMCC3677 | 9 | 2 | 1 | ZBS13 | 1 | ||||
| KI2 | 9 | 2 | 1 | ZS6 | 1 | ||||
| ZBS5 | 12 | 2 | 1 | CMCC3676 | 5 | ||||
| ZBS17 | 12 | 2 | 1 | CMCC3678 | 5 | ||||
| VAP52 | 17 | 2 | 1 | ZBS15 | 5 | ||||
| VAP51 | 2 | 1 | MIL1 | 5 | |||||
| VAP41 | 2 | 1 | |||||||