Figure 4.

Algal extract showed no antifungal activity against P. infestans or B. cinerea. (a) Disks infiltrated with 20 μL of AP (100%), AP (1%), and Hygromycin B (150 μg/mL) as a positive control or H₂O as a negative control. Photograph was taken 5 days after inoculation. (b) Disks infiltrated with 20 μL of AP (100%), Hygromycin B (150 μg/mL) as a positive control or H₂O as a negative control. Photograph was taken 7 days after inoculation. Experiment were repeated three times and showed similar results.