TABLE 1.
Effect of pH on radial growth and conidiation of the wild-type strain, PAC2A, and PAC2A-Ca
| Strain | Growth (cm) at pHb:
|
Conidiation (105 conidia/ml) at pHc:
|
||||
|---|---|---|---|---|---|---|
| 4.5 | 7.0 | 8.4 | 4.5 | 7.0 | 8.4 | |
| Wild Type | 5.4 ± 0.3 | 5.0 ± 0.1 | 3.7 ± 0.3 | 27.6 ± 1.5 | 19.8 ± 2.2 | 12.0 ± 4.0 |
| PAC2A | 5.4 ± 0.3 | 5.0 ± 0.1 | NDd | 6.0 ± 2.1 | 0.3 ± 0.1 | ND |
| PAC2A-C | 5.4 ± 0.3 | 5.0 ± 0.1 | 4.6 ± 0.2 | 29.7 ± 1.5 | 12.0 ± 3.5 | 15.3 ± 4.2 |
a
Mycelial plugs 5-mm diameter were placed at the center of plastic petri dishes containing solid medium containing NaNO3 as a nitrogen source and incubated for 7 days at 28°C.
b
Mean colony diameter (in centimeters) of three replicates ± standard error.
c
Mean number of conidia (105) per milliliter ± standard error for three replicates.
d
ND, none detected.