SELECTION OF STRAINS OF EPICOCCUM-PURPURASCENS FOR TOLERANCE TO FUNGICIDES AND IMPROVED BIOCONTROL OF SCLEROTINIA-SCLEROTIORUM

被引:27
作者
TING, Z
REELEDER, RD
机构
[1] AGR CANADA,RES STN,POB 186,DELHI N4B 2W9,ONTARIO,CANADA
[2] MCGILL UNIV,MACDONALD COLL,DEPT PLANT SCI,ST ANNE BELLEVUE H0A 1C0,QUEBEC,CANADA
关键词
Biological control; Fungicide resistance; Iprodione; Vinclozolin; White mold;
D O I
10.1139/m90-130
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
A wild-type isolate of Epicoccum purpurascens was exposed to shortwave ultraviolet light. One of the resulting cultures (M-20-A) was grown on media amended with the fungicides iprodione or vinclozolin and fungicide-tolerant strains were obtained. Several comparisons were made between new strains and the wild type. Sporulation was improved compared with the wild type. Strains varied in their tolerance to iprodione and vinclozolin but were not tolerant to the fungicide benomyl. Strains R4000, 16-B, and 7-A inhibited Sclerotinia sclerotiorum in vitro more than either the wild type or M-20-A, and exhibited improved control of white mold of bean in the greenhouse compared with M-20-A.
引用
收藏
页码:754 / 759
页数:6
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