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期 刊 ：植物保护学报 1997年

关键词：稻瘟病；生理小种；诱导侵染；活性物质；

Keywords:Magnaporthe grisea, physiological race, inductive activity, infection,

摘 要 ：作者报道了稻瘟病菌ZA_(51)、ZA_(49)和ZE_3的孢子萌发液对供试水稻品种秀水04和苏御糯秧苗没有致病性与其它明显毒性,但对它们的亲和性组合如ZA_(49) 秀水04和非亲和性组合如ZE_3 秀水04都有诱导侵染作用。且强致病性稻瘟菌ZA_(49)或ZA_(51)的孢子萌发液的诱导侵染活性高于弱致病性菌株ZE_3的孢子萌发液,孢子萌发液水层部分的诱导侵染活性高于脂层部分。这一事实说明,稻瘟病菌孢子萌发液中存在稻瘟病菌致病因子及有关物质,它将为补充解释水稻抗性品种的“抗性丧失”的原因,为进一步说明稻瘟病菌不同致病菌间的互作及稻瘟病菌致病机制等提供可能性。

Abstract:The inductive infection of Magnaporthe grisea was conducted by using spore suspension and spore germination liquid,which was free from the fungal tissue,of different pathogen strains in different combinations. The results indicated that spore germination

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