RECOVERY OF PROGENY FOLLOWING SEXUAL REPRODUCTION OF BREMIA-LACTUCAE

被引:32
作者
MICHELMORE, RW
INGRAM, DS
机构
来源
TRANSACTIONS OF THE BRITISH MYCOLOGICAL SOCIETY | 1981年 / 77卷 / AUG期
关键词
D O I
10.1016/S0007-1536(81)80187-8
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Heterothallic isolates of B. lactucae [causal agent of downy mildew] of different virulence phenotypes were crossed by inoculation together on to lettuce cotyledons, resulting in the production of oospores. Progeny were obtained by inoculating seedlings with suspensions of these oospores which were prepared by sonication in the presence of glass beads. The progeny exhibited novel virulence phenotypes consistent with the hypothesis that B. lactucae is not haploid and that virulence is recessive. Neither long periods of time nor leaching appeared to be prerequisites for oospore germination.
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页码:131 / 137
页数:7
相关论文
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