PYTHIUM SP GROUP G, A FORM OF PYTHIUM-ULTIMUM CAUSING DAMPING-OFF OF SAFFLOWER

被引：23

作者：

HUANG, HC

MORRISON, RJ

MUENDEL, HH

BARR, DJS

KLASSEN, GR

BUCHKO, J

机构：

[1] Research Station, Agriculture Canada, Lethbridge, AB

[2] Biosystematics Research Centre, Agriculture Canada, Ottawa, ON

[3] Department of Microbiology, University of Manitoba, Winnipeg, MB

来源：

CANADIAN JOURNAL OF PLANT PATHOLOGY-REVUE CANADIENNE DE PHYTOPATHOLOGIE | 1992年 / 14卷 / 03期

关键词：

D O I：

10.1080/07060669209500881

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Pythium sp. "group G" is an important damping-off pathogen of safflower in southern Alberta. Molecular evidence suggests that the safflower isolate of Pythium sp. "group G" (isolate BR583) is a divergent form of Pythium ultimum. Artificial inoculations showed that safflower, canola, dry pea, sugarbeet, lettuce, cucumber, muskmelon, spinach, and marigold are highly susceptible to isolate BR583. Sunflower, carrot, and tomato are moderately susceptible, but dry bean is resistant to this pathogen. Damping-off of canola, sugarbeet, safflower, and dry pea occurred in soils collected from two safflower fields near Lethbridge, Alberta and the organisms isolated from diseased seedlings all belonged to Pythium sp. "group G."

引用

页码：229 / 232

页数：4

共 24 条

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