Strain T29,T50,T62,and R111 of genus of Lophodermium were used as materials in this study to optimized the concentrations of DNA templates,primers,Mg2+,dNTPS,Taq DNA polymerase,the annealing temperature and other conditions in ISSR-PCR system of the genus in order to seek the optimum reaction system of ISSR-PCR suitable for fungi of these kinds.The results showed that the optimal ISSR-PCR system suitable for genus of Lophodermium were as follow:concentration of DNA templates 4~8 μg/μL,concentration of prime...