Mating type distribution and pathogenicity of Phytophthora infestans in Taiwan
نویسندگان
چکیده
Taiwanese isolates of Phytophthora infestans were examined for mating types and pathogenicity to tomato and potato. A total of 70 isolates, including 68 isolates from tomato and 2 isolates from potato, from six counties of Taiwan were all A1 mating type. Three tomato isolates of P. infestans caused only leaf blight of tomato, while two isolates obtained from potato were able to cause the disease both on potato and tomato, indicating that host-specific strains of P. infestans occur in Taiwan.
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