青杨脊虎天牛对伴生真菌的触角电位反应

为了探索伴生真菌在青杨脊虎天牛寄主选择过程中的作用,利用触角电位法(EAG)测试了青杨脊虎天牛对伴生的46株真菌的触角电位反应。结果表明:有11个菌株能够引起青杨脊虎天牛雌成虫明显的EAG反应,其中6个菌株与对照相比差异极显著;雌成虫对2株腐皮镰刀菌(Fusarium solani(Mart.)Sacc.)具有较强的EAG反应,EAG最高相对均值达201.67%和199.00%,约为对照的2倍,差异极显著;有17个菌株能够引起青杨脊虎天牛雄成虫明显的触角电位反应,其中3个菌株与对照相比差异极显著。

The study on EAG response of Xylotrchus rusticus to its associated fungi

To explore the function of Xylotrchus rusticus L. (X. rusticus L.) associated fungi in the selection of its host, electroantennogram (EAG) was used to assay the antennal response of X. rusticus L. to its 46 associated fungi. The result showed that there were11 strains arousing obvious EAG response in adult X. rusticus L., among them there were 6 strains, the EAG aroused by which showed significant differences compared to the control. The female adults of X. rusticus L. showed a high EAG response to the culture medium of 2 Fusanium strains, with the highest relative average magnitude of EAG reaching 201.67% and 199.00% respectively, which is about 2 times that of the control, with very significant difference. There were 17 strains arousing obvious EAG response in male adult of X. rusticus L., among them 3 strain showed significant differences in EAG response when compared to the control.