Soil-borne populations of Fusarium oxysporum f. sp vasinfectum, a cotton wilt fungus in California fields

被引：22
|
作者：
Smith, SN
DeVay, JE [1 ]
Hsieh, WH
Lee, H
机构：
[1] Univ Calif Davis, Dept Plant Pathol, Davis, CA 95616 USA
[2] Univ Calif Davis, Dept Agron & Range Sci, Davis, CA 95616 USA
[3] Natl Chung Hsing Univ, Dept Plant Pathol, Taichung 40227, Taiwan
来源：
MYCOLOGIA | 2001年 / 93卷 / 04期
关键词：
Fusarium wilt; natural culture types; persistence in soil; RAPD comparisons;
D O I：
10.2307/3761828
中图分类号：
Q93 [微生物学];
学科分类号：
071005 ; 100705 ;
摘要：
High populations of Fusarium oxysporum f. sp. vasinfectum, mostly between 100 and 1000 propagules/gram of soil, were found in 10 field soils assayed eight times during 10 yr after susceptible and infected cotton crops had been grown. During some of the years following the cotton crops, cotton and perennial crops such as grapevines and almond trees were grown. Among the isolates of F. oxysporum sp. vasinfectum two culture types were found: low sporing and high sporing types. The high sporing type was more frequently isolated from soil. The two types were further characterized by RAPD analysis and pathogenicity tests.
引用
收藏
页码：737 / 743
页数：7
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