How to sporulate Phytophtora infestans and Alternaria solani in artificial medium? What is the best medium for isolation of both of them?

I have an obstacle in the isolation of Phytophtora infestans and Alternaria solani. I used PDA meidum for the first isolation and I used tomato infected leaf. I got a colony of fungal which...

10 April 2012 1,735 31 View