被害马尾松(Pinus massoniana)针叶挥发性物质的提取、鉴定及蚕饰腹寄蝇(Blepharipa zebina)的电生理活性

被引:25
作者
徐延熙 [1 ]
孙绪艮 [2 ]
秦小薇 [1 ]
苏建伟 [1 ]
戈峰 [1 ]
机构
[1] 农业虫鼠害综合治理研究国家重点实验室中国科学院动物研究所
[2] 山东农业大学植物保护学院
关键词
马尾松; 马尾松毛虫; 挥发性物质; 蚕饰腹寄蝇; 触角电位;
D O I
暂无
中图分类号
S763.7 [各种树的病虫害及其防治];
学科分类号
090703 [森林保护学];
摘要
试验使用动态顶空吸附的方法,提取了被害马尾松(Pinus massoniana)针叶挥发物,并通过气相色谱-质谱联用仪(GC-MS)及标准样品进行鉴定。结果表明,被害马尾松针叶挥发性物质主要包括绿叶挥发物、单萜、含氧单萜及倍半萜等四大类物质;挥发物中以单萜的含量最高,其它3类物质含量较低。通过触角电位图(EAG)技术,测定了23种挥发性物质标准样品的石蜡油溶液对蚕饰腹寄蝇(Blepharipa zebina)雌蝇的电生理活性。结果表明,蚕饰腹寄蝇雌蝇对α-蒎烯、β-蒎烯、长叶烯、莰烯、乙酸冰片酯等的相对触角电位反应值与湿润空气对照相比并无显著差异;雌蝇对其它刺激物的相对触角电位反应值与湿润空气对照相比均存在显著差异。同时测定了雌蝇对8种标样,在5个浓度系列下的剂量-反应,并分析了反应阈值。结果表明,蚕饰腹寄蝇雌蝇对顺-3-己烯-1-醇和里哪醇的反应阈值为0.1μg/μl,对壬醛的反应阈值为1μg/μl,对柠檬烯、α-水芹烯、2,6-二甲基-2,4,6-辛三烯、β-石竹烯4种物质的反应阈值为100μg/μl,而对α-蒎烯,在测试的剂量范围内不存在反应阈值。在确定对蚕饰腹寄蝇有生理活性的物质成分和分析反应阈值的基础上,对寄生蝇类定位寄主的机制进行了讨论。
引用
收藏
页码:4403 / 4411
页数:9
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