Jasmonic acid induces the production of gerbera volatiles that attract the biological control agent Phytoseiulus persimilis
Jasmonic acid induces the production of gerbera volatiles that attract the biological control agent Phytoseiulus persimilis
复制标题
DOI：
10.1023/a:1003826309751
复制
发表时间：
1999-10-01
影响因子：
1.9
通讯作者：
Dicke, M
中科院分区：
文献类型：
--
作者：
Gols, R;Posthumus, MA;Dicke, M
茉莉酸（JA）是一种植物激素，参与诱导植物防御草食动物的攻击。本文研究了茉莉酸对非洲菊叶片间接防御作用的影响。处理非洲菊叶与JA或食草性蜘蛛螨二斑叶螨喂养损害，都诱导产生一个复杂的气味混合物，吸引捕食螨Phytoseiulus persimilis。该捕食性天敌是红蜘蛛T.荨麻疹比较暴露于JA或T的非洲菊叶片的顶空组成。荨麻疹显示了很大程度的相似性，但记录了一些定量和定性差异。在这两种治疗的主要化学基团是由萜类化合物，其定量构成高达80%的总气味混合物。这些萜类化合物包括（E）-4，8-二甲基-1，3，7-壬三烯、（E）-β-罗勒烯和芳樟醇，已知它们能吸引P. persimilis。醛、醇、酯和酮以及含氮化合物形成气味混合物的其余成分。本文就茉莉酸在植物中诱导捕食性天敌引诱剂的作用，在生物防治中的应用进行了讨论。
Jasmonic acid (JA) is a plant hormone that is involved in the induction of plant defence in response to herbivore attack. We studied the effect of exposure of gerbera leaves to JA on indirect plant defence, i.e. attraction of natural enemies of herbivores. Treatment of gerbera leaves with JA or feeding damage by the herbivorous spider mite Tetranychus urticae, both induced the production of a complex odour blend that attracts the predatory mite Phytoseiulus persimilis. This phytoseiid predator is a very effective biological control agent of the spider mite T. urticae. Comparison of headspace composition of gerbera leaves exposed to either JA or T. urticae revealed a large degree of resemblance, but some quantitative and qualitative differences were recorded. The major chemical group in both treatments is formed by the terpenoids which quantitatively comprised up to 80% of the total odour blend. These terpenoids included (E)-4,8-dimethyl-1,3,7-nonatriene, (E)-beta-ocimene and linalool that are known to attract P. persimilis. Aldehydes, alcohols, esters and ketones, together with nitrogenous compounds formed the remaining constituents of the odour blend. The induction of predator attractants in plants by JA may be applied in biological control programs, which is discussed in this paper.