摘要
对１５种２４个品系的昆虫病原线虫进行抗干燥能力研究，结果表明，昆虫病原线虫种类不同，其抗干燥能力也不同。在２５℃、相对湿度５０．５％的小空间控制器中处理９小时后，Ｓｔｅｉｎ┐ｅｒｎｅｍａｃａｒｐｏｃａｐｓａｅ仍具有较高的存活率，其余种类几乎全部死亡。同一种线虫的不同品系，其抗干燥能力也存在差异。在Ｓ．ｃａｒｐｏｃａｐｓａｅ的４个品系Ａ２４、Ｂｅｉｊｉｎｇ、ＣＢ┐１６和Ｍｅｘ中，ＣＢ┐１６具有较高的抗干燥能力，经干燥处理后其存活率最高，达８５．３％，加水复苏后的线虫对大蜡螟的致死率为１００％，侵入率高达１９．９％％。
The antidesiccation ability of 15 species, 24 strains entomopathogenic nematodes was studied in the laboratory. The results showed that antidesiccation ability was different among species and strains. The nematodes were kept in desiccators adjusted to 25℃, RH 50.5% for 9 h. Steinernema carpocapsae had the highest survival rate and almost all the other species were killed. The antidesiccation ability was also different among 4 strains of S.carpocapsae. CB 16 had higher antidesiccation ability than the other 3 strains (A24, Beijing and Mex). Its survival rate was 85.3% at 25℃, RH 50.5% for 9 h. The survived nematodes killed Galleria mellonella 100% and its penetrating rate was 19 9%.
出处
《中国生物防治》
CSCD
1999年第3期100-103,共4页
Chinese Journal of Biological Control
基金
国际科学基金会(IFS)项目
农业部农作物病虫草害生物防治资源研究项目
农业部农作物病虫草害生物防治资源利用重点开放实验室资助
关键词
昆虫病原线虫
抗干燥能力
存活率
侵入率
致死率
entomopathogenic nematodes
antidesiccation ability
survival rate
penetrating rate
lethal rate
