Characterization of Phytophthora infestans in Wisconsin from 1993 to 1995

被引：20

作者：

Marshall-Farrar, KD ^{[1
]}

McGrath, M ^{[1
]}

James, RV ^{[1
]}

Stevenson, WR ^{[1
]}

机构：

[1] Univ Wisconsin, Dept Plant Pathol, Madison, WI 53706 USA

来源：

PLANT DISEASE | 1998年 / 82卷 / 04期

关键词：

ridomil;

D O I：

10.1094/PDIS.1998.82.4.434

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Late blight of potato (Solanum tuberosum), caused by Phytophthora infestans, recently reappeared in Wisconsin and was a significant production problem in 1994. P. infestans isolates collected in Wisconsin from 1993 to 1995 were characterized for the following traits: mating type, sensitivity to metalaxyl, and allozyme genotype for Glucose-6-phosphate isomerase (Gpi). Characterization of these isolates revealed that a new, more aggressive population (A2 mating type, metalaxyl resistant, and Gpi genotype 100/111/122) is displacing the old population (A1 mating type, metalaxyl sensitive, and Gpi genotype 86/100) in Wisconsin.

引用

页码：434 / 436

页数：3

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