松材线虫拮抗细菌的筛选

目的]筛选对松材线虫(Bursaphelenchuh xylophilus)具有杀线活性的细菌。方法]对来自松、杨林分的12株细菌进行了杀松材线虫活性测定。结果]在植物体上共分离获得12株细菌,其中JK-SD001发酵液稀释4倍对松材线虫处理24 h后杀线率仍为100%,且松材线虫虫体出现消解现象,消解率为80.4%。结论]为开发生物源杀线剂奠定了基础。

Screening of the Bacterium with Nematicidal Activity to Bursaphelenchuh xylophilus

Objective ] The aim was to screen bacterium with nematicidal activity to pine wood nematode （Bursaphelenchuh xylophilus ）. Method ] The nematicidal activities of 2 bacteria strains isolated from pine forest and poplar forest to B. xylophilus were determined. Re- suit] Twelve bacteria strains were isolated from the plant, and the nematode mortality was 100% after B. xylophilus was treated by four times dilution of JK-SD001 fermentation liquor for 24 h, meanwhile the nematode appeared digestion, with the digestion rate of 80.4%. Conclu- sion] The research result lays the foundation for the development of biological nematicides.