昆虫病原线虫抗干燥能力研究

昆虫病原线虫抗干燥能力研究

陈松笔;杨怀文;栾显群;杨秀芬;简恒

中国农科院生物防治研究所,北京　100081

收稿日期:1998-09-30 修回日期:1900-01-01 出版日期:1999-08-08 发布日期:1999-08-08

The Antidesiccation Ability of Entomopathogenous Nematodes

CHEN Song-bi;YANG Huai-wen;LUAN Xian-qun;YANG Xiu-fen;JIAN Heng

Institute of Biological Control,CAAS,Beijing 100081,China

Received:1998-09-30 Revised:1900-01-01 Online:1999-08-08 Published:1999-08-08

摘要/Abstract

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，Steinernema crpocapsae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.crpocapsae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％％。

Abstract: 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%.

陈松笔;杨怀文;栾显群;杨秀芬;简恒 . 昆虫病原线虫抗干燥能力研究[J]. , DOI: .

CHEN Song-bi;YANG Huai-wen;LUAN Xian-qun;YANG Xiu-fen;JIAN Heng

. The Antidesiccation Ability of Entomopathogenous Nematodes[J]. , DOI: .