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马铃薯晚疫病菌卵孢子萌发的初步研究 被引量:8

PRELIMINARY STUDY ON OOSPORES GERMINATION OF POTATO LATE BLIGHT PATHOGEN
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摘要 描述了马铃薯晚疫病菌卵孢子萌发的方式并研究了菌株组合、卵孢子形成时间、在琼脂培养基上培养时间及光照对卵孢子萌发的影响,结果表明不同菌株组合卵孢子萌发率为0—7.2%,对峙培养20天后形成的卵孢子的萌发率最高达8.7%,在琼脂培养基上培养25-30d 萌发率最高达11.4%,卵孢子形成时黑暗及在琼脂培养基上萌发时光照萌发率最高达11.8%。 Mode of oospores germination of Phytophthora infestans was described. Effects of isolate combinations, time of oospores formation, incubation time on the agar media and light on oospores germination were studied. The results were as follows: Germination rate of oospores produced by different isolate combinations was from 0 to 7.2%. Germination rate of oospores formed was 8.7% when two isolates of different mating types were cultivated for 20 days and their germination rate was 11.4% when oospores were incubated for 25-30 d in the agar media. The highest germination rate of oospores produced in the darkness and incubated under the light in the agar media was 11.8%.
出处 《菌物学报》 CAS CSCD 北大核心 2005年第2期297-303,共7页 Mycosystema
基金 河北省自然科学基金项目(C2004000379)
关键词 马铃薯晚疫病菌 孢子萌发率 培养基 形成时间 培养时间 对峙培养 孢子形成 卵孢子 琼脂 组合 菌株 光照 Phytophthora infestans, potato late blight, germination condition
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