天牛危害与机械损伤对山核桃挥发物的诱导差异

Comparison of Volatiles from Carya cathayensis under Different Conditions

对健康、受机械损伤及具有天牛幼虫新鲜排粪孔的山核桃树进行顶空吸附采样,研究山核桃在不同条件处理下的挥发物差异。结果表明,不同处理山核桃之间挥发物种类有明显差异,健康山核桃释放的挥发物种类10种,机械损伤植株10种,但二者间有5种成分不同,而天牛幼虫蛀干的植株有17种,与机械损伤的相比有10种成分不同。

Volatiles were collected by dynamic headspace from healthy, mechanical damaged and insect damagedCarya cathayensis. Analysis on composition of volatiles by GC-MS. The result demonstrated that 10 types of components were detected both from healthy and mechanical damaged trees, but among them, 5 types were different. While 17 types of components were detected from insect damaged tree, among them, 10 components were different with that from mechanical damaged tree.