Taste Adaptation of Heficoverpa armigera Larvae to Azadirachtin and Its Physiological Mechanism

• 作者: Long Jiumei Teng Tao Zhou Dongsheng
• 来源期刊: Plant Diseases and Pests(植物病虫害研究：英文版)
• 学科: 农学
• 关键词: 棉铃虫幼虫 味觉神经元 印楝素 生理机制 电生理实验 饮食口味 行为分析 人工饲料
• 年，卷（期）: 2016,（2）
• 页码范围: 18-19
• 页数: 2页
• 分类号: S482.91

摘要

Dual-choice behavioral assays and electrophysiological tip-recording technique were used to investigate the taste adaptation of different diet-experienced fifth instar larvae of Helicoverpa armigera to azadirachtin. The behavior test showed that the larvae reared with normal artificial diets were highly deterred by azadirachtin. However,the larvae reared with the artificial diets containing low concentration of azadirachtin showed insensitivity to azadirachtin. The electrophysiological tests showed that there was a changed responsiveness in the deterrent neuron responding to azadirachtin in the lateral sensilla styloconica of different diet-experienced larvae. It indicated that there was a taste adaptation to azadirachtin in different diet-experienced larvae of H. armigera and this taste adaptation was correlated with desensitization of related taste neurons.