桉叶挥发物变化及桉树枝瘿姬小蜂趋性反应  

Changes of induced volatiles in Eucalyptus leaves and the taxis responses of Leptocybe invasa

作　　者：吴耀军[1,2] 常明山[1,2] 黎贵倾 张照远[1,2] 盛双 梁忠云[1] 

机构地区：[1]广西壮族自治区林业科学研究院,广西南宁530002 [2]广西优良用材林资源培育重点实验室,广西南宁530002 [3]河池市科学技术情报研究所,广西河池547000

出　　处：《森林与环境学报》2015年第1期38-44,共7页Journal of Forest and Environment

基　　金：林业公益性行业科研专项(201004003);广西优良用材林资源培育重点实验室自主课题(12B0403);广西林业科技项目(桂林科字[2009]3号)

摘　　要：采用GC-MS和四臂嗅觉仪测定了桉树DH32-28、DH201-2、GL-UG9无性系健康树叶和经桉树枝瘿姬小蜂诱导桉叶挥发物的变化,及其对枝瘿姬小蜂成虫的诱集作用。结果表明,诱导的和健康的桉叶挥发物提取率由高到低依次为DH32-28、DH201-2、GL-UG9无性系,同一无性系诱导的桉叶提取率较健康的低;经诱导的桉叶挥发物萜类和醇类物质种类较健康桉叶的多,绿叶类、醛和酮类、芳香类化合物也较多;在四臂嗅觉仪的终选区,健康的DH201-2和GL-UG9桉叶对桉树枝瘿姬小蜂成虫具有明显的诱集作用,而健康的DH32-28桉叶未表现出明显的诱集作用,经诱导的DH201-2、GL-UG9和DH32-28桉叶挥发物则表现出明显的诱集作用。GC-MS and four-armed olfactmeter were employed to test the changes of volatiles in healthy leaves of Eucalyptus and induced by Leptocybe invasa Fisher ＆ La Salle in the clones such as DH32-28, DH201-2 and GL-UG9, and to investigate their temptation to the adults .The extraction ratios of induced and healthy volatiles were in the following order ：DH32-28〉DH201-2〉GL-UG9, and the extraction ratio of induced volatiles was lower than that of volatiles from the healthy trees in the same clone .In the induced volatiles, terpene, alcohols, aldehyde, ketone and aromatics were more than those in the healthy leaves .The leaves of healthy DH201-2 and GL-UG9 had remarkable temptation to the adults of Leptocybe invasa Fisher ＆ La Salle, but the leaves of healthy DH32-28 performed insignificantly .Meanwhile the induced volatiles in the leaves of the clones DH 201-2, GL-UG9 and DH32-28 performed obvious temptation .

关 键 词：桉叶挥发物 桉树枝瘿姬小蜂 诱导 四臂嗅觉仪 诱集作用 

分 类 号：S763[农业科学—森林保护学]