Volatile compounds from Salix spp. varieties differing in susceptibility to three willow beetle species
Volatile compounds from Salix spp. varieties differing in susceptibility to three willow beetle species
复制标题
DOI：
10.1023/a:1012278417424
复制
发表时间：
2001-10-01
影响因子：
2.3
通讯作者：
Powers, S
中科院分区：
文献类型：
--
作者：
Peacock, L;Lewis, M;Powers, S
10个杨柳品种，不同的敏感性，其损害的蓝色（Phratora vulgatissima），黄铜（P. vitellinae），棕色（Galerucella lineola）杨柳甲虫的叶片所排放的挥发性化合物进行了检查之前和之后的机械损伤，并与这些甲虫在实验室条件下确定的摄食偏好。从6个杨柳品种的完整未损伤叶片中鉴定出3种化合物，分别为乙酸顺-3-己烯酯、顺-3-己烯醇和苯甲醛。机械损伤后，所有品种的产量和挥发性化合物的数量增加。杨柳品种间顺式-3-己烯乙酸酯的含量及该化合物与顺式-3-己烯醇的相对比例（绿色叶挥发物比率）均存在显著差异。10个品种对蓝、褐杨柳甲的相对抗性与受害植株的顺-3-己烯基乙酸酯产量呈显著负相关。受害植株的绿色叶挥发物比率与杨柳品种对这两种甲虫的相对抗性也呈负相关。
The volatile compounds emitted by leaves of 10 willow varieties that differ in their susceptibility to damage by blue (Phratora vulgatissima), brassy (P. vitellinae), and brown (Galerucella lineola) willow beetles were examined both before and after mechanical damage and correlated with feeding preferences of these beetles determined under laboratory conditions. Three compounds were identified from intact undamaged leaves of six willow varieties, namely cis-3-hexenyl acetate, cis-3-hexenol, and benzaldehyde. After mechanical damage, the yield and number of volatile compounds increased for all varieties. There were significant differences among willow varieties for both the concentration of cis-3-hexenyl acetate and the relative proportion of this compound to cis-3-hexenol (green leaf volatile ratio). The 10 varieties collectively showed a significant negative correlation between the relative resistance of each variety to blue and brown willow beetles and the yield of cis-3-hexenyl-acetate from damaged plants. The green leaf volatile ratio of damaged plants was also negatively correlated with the relative resistance of willow variety to these two beetle species.