TITLE	Mating type distribution and pathogenicity of Phytophthora infestans in Taiwan
AUTHOR	P. J. Ann Chia-Yi Agricultural Experiment Station, Chia-yi, Taiwan, Republic of China T. T. Chang Division of Forest Protection, Taiwan Forestry Research Institute, 53 Nan-Hai Road, Taipei, Taiwan, Republic of China L. L. Chern Division of Forest Protection, Taiwan Forestry Research Institute, 53 Nan-Hai Road, Taipei, Taiwan, Republic of China
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ABSTRACT	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.
KEYWORD	Host specificity; Mating type; Phytophthora infestans; Potato; Taiwan; Tomato;
ARTICLE INFO	Botanical Bulletin of Academia Sinica, Volume 39 Number 1 January 1998, page 33-37, 5 pages
PUBLISHER	Institute of Plant and Microbial Biology, Academia Sinica, Taipei, Taiwan, Republic of China