Origin of the A2 Mating Type of Phytophthora infestans Outside Mexico
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چکیده
منابع مشابه
Origin of the A2 Mating Type of Phytophthora infestans Outside Mexico.
The first report of the A2 mating (compatibility) type of the potato late blight pathogen, Phytophthora infestans (Mont.) de Bary, outside Mexico was in Europe during 1984 (32) and, since then, the A2 has been found in many parts of the world (19,23). The four most likely hypotheses to explain the occurrence of the A2 mating type outside Mexico are that it (i) was always present, but undetected...
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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 diseas...
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چکیده ندارد.
The biology of Phytophthora infestans at its center of origin.
The central highlands of Mexico are considered to be a center of genetic diversity for both the potato late blight pathogen and for tuber-bearing Solanum spp. Recent work conducted in Mexico and South America sheds new light on the biology and evolution of Phytophthora infestans and other related Phytophthora pathogens. It now appears that Mexican Solanum species, which coevolved with P. infest...
متن کاملRESISTANCE TO PHENYLAMIDE FUNGICIDES: a case study with phytophthora infestans involving mating type and race structure.
Phenylamide-resistant isolates of Phytophthora infestans have gradually become an important part of populations in many countries. However, fungicide mixtures containing a phenylamide component are still an effective strategy for the control of late blight in potato and tomato. The proportion of phenylamide-resistant isolates fluctuates from year to year and within the season. Almost concurrent...
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ژورنال
عنوان ژورنال: Phytopathology®
سال: 1997
ISSN: 0031-949X,1943-7684
DOI: 10.1094/phyto.1997.87.10.992