Abstract: Four laboratory strains of Pyricularia oryzae cav. isolated from rice were cultivated on oatmeal agar at room temperature for 5 days and incubated at 20℃ with continuous illumination for 16 day. Mature perithecia were produced at the junction between two isolates of opposite mating type. The availability of the perfect stage in P. oryzae has offered new opportunities for understanding the genetics of Pyricularia-rice interactions which may provide insights into the breeding for durable resistance to blast.

Key words: Pyricularia oryzae, Perithecia, Asci, Ascospores, Perfect stage

摘要： 选用国际水稻研究所遗传室从水稻上分离的4个稻瘟病菌株,在室温下的燕麦培养基上培养5天,又在20℃连续光照下培养16天,在相对的两个交配型菌株的菌丝联结处产生黑色成熟的子囊壳。稻瘟病菌在培养基上有性世代的形成,为进一步理解梨孢菌属和水稻之间的遗传学以及选育稳定持久的抗病品种提出了新的见识。

关键词: 稻瘟病菌, 子囊壳, 子囊孢子, 子囊, 有性世代