THE HOST RANGE OF ISOLATES OF DOWNY MILDEW, PERONOSPORA-PARASITICA, FROM BRASSICA CROP SPECIES

被引：24

作者：

SHERRIFF, C ^{[1
]}

LUCAS, JA ^{[1
]}

机构：

[1] UNIV NOTTINGHAM, DEPT BOT, NOTTINGHAM NG7 2RD, ENGLAND

来源：

PLANT PATHOLOGY | 1990年 / 39卷 / 01期

关键词：

D O I：

10.1111/j.1365-3059.1990.tb02478.x

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

The host ranges of 33 isolates of the downy mildew fungus Peronospora parasitica from different Brassica hosts and diverse geographic origins were assessed on a standard set of Brassica accessions Isolates from each host species had a distinct host range, and in some cases isolates from the same host species but different geographic origins differed in host range. Most isolates were capable of infecting hosts other than their species of origin. These results are discussed in relation to species specificity and the conservation of certain virulence gene combinations. The epidemiological implications for cross‐infection of Brassica hosts by P. parasitica isolates in the field are also considered. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：77 / 91

页数：15

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