Research Article

Analysis of Antifungal Components in the Galls of Melaphis chinensis and Their Effects on Control of Anthracnose Disease of Chinese Cabbage Caused by Colletotrichum higginsianum

Table 5

Antifungal activity of indicator compoundsa.

CompoundC. higginsianum PA-01C. higginsianum PA-19
Concentration (µg/mL)Inhibition of conidial germination (%)bIC50 (µg/mL)Concentration (µg/mL)Inhibition of conidial germination (%)IC50 (µg/mL)

1323.44 20.00 ± 3.19***586.4307.81 34.45 ± 5.73***361.6
646.88 76.19 ± 4.36***615.63 81.34 ± 3.42***
1293.75 98.28 ± 1.68***1231.25 99.50 ± 0.84***

219.73 25.81 ± 5.67***40.29.42 25.96 ± 3.63***22.1
39.45 64.02 ± 4.34***18.85 47.56 ± 3.61***
78.91 84.98 ± 4.03***37.70 76.05 ± 2.50***

3318.75 13.93 ± 3.23***716.5320.31 34.01 ± 4.12***434.5
637.50 53.13 ± 4.37***640.63 79.16 ± 3.97***
1275.00 84.14 ± 3.96***1281.25 99.32 ± 1.23***

4310.94 10.40 ± 2.47***749.1325.00 2.67 ± 2.41759.9
621.88 43.82 ± 4.53***650.00 60.20 ± 2.95***
1243.75 84.48 ± 3.52***1300.00 87.12 ± 2.32***

5310.94 9.56 ± 3.68***850.3300.00 0.83 ± 0.63d
621.88 52.12 ± 5.11***600.00 1.67 ± 1.27
1243.75 73.28 ± 4.31***1200.00 8.19 ± 1.65

6326.56 2.35 ± 3.49***c323.44 3.34 ± 2.741210.8
653.13 14.21 ± 5.77***646.88 23.08 ± 4.00***
1306.25 29.83 ± 4.36***1293.75 50.84 ± 5.78***

Azoxystrobin0.57 37.96 ± 2.41***0.50.30 38.99 ± 3.54***0.4
1.15 66.78 ± 7.56***0.60 69.13 ± 3.03***
2.29 81.48 ± 2.76***1.20 88.53 ± 2.61***

; bmean ± S.D.; ; cIC50 > 1306.25 µg/mL and not determined; dIC50 > 1200.00 µg/mL and not determined.