摘要
测定YX拟青霉菌发酵浓缩物(YFC)对马铃薯晚疫病菌的抑制作用,发现YFC对晚疫病菌菌丝生长具有明显的抑制作用,2 g/L的YFC对菌丝生长的相对抑制率达63.00%;经YFC处理后的晚疫病菌丝扭曲、分枝增多、菌丝膨大、变形甚至断裂;盆栽实验中YFC质量浓度为4 g/L时对马铃薯晚疫病的预防和治疗效果分别为83.35%和35.63%.
Inhibition of concentrate of fermentation liquid from YX Paecilomyces farinosus （YFC） on Phytophthora infestans was tested. The results showed that YFC strongly inhibited the mycelia growth. The mycelia growth rate was inhibited 63.00% at dose of 1 g/L. Shape of the inhibited mycelia was observed under microscope, it was found that mycelia of Phytophthora infestans twisted, the abnormal branching was increased, the mycelia was inflated and broke. The results of pot tests showed that a protective efficiency and a curative efficiency of YFC against Phytophthora infestans at dose of 4 g/L were 83.35% and 35.63% respectively.
出处
《云南大学学报（自然科学版）》
CAS
CSCD
北大核心
2005年第5期446-450,共5页
Journal of Yunnan University(Natural Sciences Edition)
基金
十五攻关项目(2002NG09)
云南大学"211工程"二期建设及植物学博士点经费资助
关键词
YX拟青霉菌
马铃薯晚疫病菌
抑制作用
发酵液浓缩物
Paecilomyces farinosus
Phytophthora infestans
inhibition
concentrate of fermentation liquid
