摘要
采用液体浸泡方法首次测定了菌寄生菌属Hypomyces sp.的次级代谢物苝醌类化合物竹红菌甲素和痂囊羟菌素对松材线虫的致病率。结果表明竹红菌甲素对松材线虫的半致病率为18小时50g/mL,痂囊羟菌素对松材线虫的半致病率为18小时15g/mL,对比(啊维菌素)对松材线虫的半致病率为18小时0.8g/mL。在红外光照射下竹红菌甲素和痂囊羟菌素具有良好的光敏杀伤松材线虫的作用。
Nematicidal activity of the perylenequinone photosensitive compounds, hypocrellin A and elsinochrome A, was determined for the first time. The infecting rate of the tested pine wood nematodes, Bursaphelenchus xylophilus reached 50% within 18h. at hypocrellin concentration of 50ppm, and elsinochrome concentration of 15g/mL. Under irradiation of infrared ray, the nematicidal activity is stronger.
出处
《菌物系统》
CSCD
北大核心
2001年第4期515-519,共5页
Mycosystema
基金
云南省科委基金重点项目(1999C0001Z)
