Table 2.
In vitro antagonistic activity assays of antagonistic yeast.
| Inhibition
a
of pathogen growth (%) |
Enzymatic activity
d
|
||||
|---|---|---|---|---|---|
| Strains | Diffusible compounds | Volatile compounds | Chitinase | Protease | CMCase |
| JYC137 | 26.8 ± 2.9%*** b | 10.1 ± 15.5% | – | – | – |
| JYC138 | 21.4 ± 23.4% | 12.0 ± 7.2%* | – | – | – |
| JYC146 | – c | 15.7 ± 16.4% | – | – | – |
| JYC188 | – | 18.8 ± 20.5%* | – | – | – |
| JYC213 | – | 14.6 ± 14.2%* | – | – | – |
| JYC264 | – | 14.5 ± 14.5% | – | – | – |
| JYC292 | – | 22.6 ± 14.6%** | – | – | – |
| JYC409 | – | 19.0 ± 16.7%* | – | – | – |
| JYC1061 | 18.7 ± 4.9%*** | 15.9 ± 12.1%* | + | 1.54 ± 0.03 | 2.81 ± 0.27 |
| JYC1146 | – | 69.6 ± 9.4%*** | + | – | – |
| JYC1161 | – | 22.9 ± 10.2%*** | – | – | – |
| JYC1174 | – | 13.6 ± 20.7% | – | – | – |
| JYC1229 | – | 2.7 ± 9.0% | + | – | – |
| JYC1277 | – | 18.5 ± 2.4%*** | – | – | 1.89 ± 0.15 |
| JYC1278 | – | 33.7 ± 22.0%** | – | 1.25 ± 0.06 | 1.73 ± 0.14 |
| JYC1291 | – | 23.6 ± 21.8%* | + | 1.53 ± 0.11 | 2.56 ± 0.27 |
| JYC1521 | – | 11.5 ± 16.1% | + | 1.63 ± 0.16 | 2.08 ± 0.12 |
| JYC1523 | – | 4.8 ± 13.5% | + | – | – |
| JYC1524 | – | 3.8 ± 20.6% | + | 1.98 ± 0.26 | 2.00 ± 0.24 |
| JYC1525 | 36.5 ± 12.5%** | 21.0 ± 20.1%* | + | – | 1.69 ± 0.09 |
| JYC2032 | – | 16.8 ± 15.2%* | – | – | – |
| JYC2041 | 19.3 ± 3.4%*** | 3.1 ± 4.7% | + | 1.35 ± 0.11 | 1.91 ± 0.13 |
| JYC2095 | – | 14.2 ± 16.2% | – | – | – |
| JYC2120 | 24.5 ± 21.3%* | 16.6 ± 13.8%* | – | – | – |
a
Data of inhibition of B. cinerea JYC2142 is expressed as mean ± SD.
b
p < .05 was considered significant. *p < .05; **p < .01; ***p < .001.
c
+Slight positive result, – not detected.
d
Data of enzymatic activity unit (AU) is expressed as diameter of the entire clear zone/diameter of the zone with yeast colonies.