Qualitative and Quantitative Differences in Herbivore-Induced Plant Volatile Blends from Tomato Plants Infested by Either Tuta absoluta or Bemisia tabaci.
Qualitative and Quantitative Differences in Herbivore-Induced Plant Volatile Blends from Tomato Plants Infested by Either Tuta absoluta or Bemisia tabaci.
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DOI：
10.1007/s10886-016-0807-7
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发表时间：
2017-01
影响因子：
2.3
通讯作者：
Bueno VH
中科院分区：
文献类型：
--
作者：
Silva DB;Weldegergis BT;Van Loon JJ;Bueno VH
植物释放各种挥发性有机化合物，在与其他植物和动物的相互作用中发挥多种作用。食草昆虫的天敌利用这些挥发物作为寻找猎物或宿主的线索。在这里，我们报告与烟粉虱或番茄螟Tuta absoluta侵染番茄植物的挥发性混合物之间的差异。我们比较了（1）干净番茄植株和（2）感染T. absoluta幼虫;和（3）用B侵染的番茄植物。烟粉虱成虫、蛹和卵。共记录到80种挥发物，其中10种始终只出现在T.绝对受侵扰的植物许多化合物在两个草食动物治疗的顶空检测到的排放率不同。受害植物。与受B污染的植物相比，Absoluta排放的许多化合物的水平至少高出10倍。烟粉虱和完整的植物。T.绝对侵染的植物与被B侵染的植物。烟粉虱主要是由于分支酸衍生物以及挥发性代谢产物的C18-脂肪酸和支链氨基酸，具有较高的排放率从T。绝对侵染的植物，而环状倍半萜α-和β-可巴烯，朱栾倍半萜，马兜铃烯排放在显着较高的水平从B。受烟草侵扰的植物。我们的研究结果表明，喂养T。absoluta和B.烟粉虱引起的挥发性混合物的排放量和质量不同，提供了一个化学基础，最近记录的行为歧视的两个通性捕食性盲蝽物种，天敌T。absoluta和B.烟粉虱用于生物防治。本文的在线版本（doi：10.1007/s10886-016-0807-7）包含补充材料，可供授权用户使用。
Plants release a variety of volatile organic compounds that play multiple roles in the interactions with other plants and animals. Natural enemies of plant-feeding insects use these volatiles as cues to find their prey or host. Here, we report differences between the volatile blends of tomato plants infested with the whitefly Bemisia tabaci or the tomato borer Tuta absoluta. We compared the volatile emission of: (1) clean tomato plants; (2) tomato plants infested with T. absoluta larvae; and (3) tomato plants infested with B. tabaci adults, nymphs, and eggs. A total of 80 volatiles were recorded of which 10 occurred consistently only in the headspace of T. absoluta-infested plants. Many of the compounds detected in the headspace of the two herbivory treatments were emitted at different rates. Plants damaged by T. absoluta emitted at least 10 times higher levels of many compounds compared to plants damaged by B. tabaci and intact plants. The multivariate separation of T. absoluta-infested plants from those infested with B. tabaci was due largely to the chorismate-derived compounds as well as volatile metabolites of C18-fatty acids and branched chain amino acids that had higher emission rates from T. absoluta-infested plants, whereas the cyclic sesquiterpenes α- and β-copaene, valencene, and aristolochene were emitted at significantly higher levels from B. tabaci-infested plants. Our findings imply that feeding by T. absoluta and B. tabaci induced emission of volatile blends that differ quantitatively and qualitatively, providing a chemical basis for the recently documented behavioral discrimination by two generalist predatory mirid species, natural enemies of T. absoluta and B. tabaci employed in biological control. The online version of this article (doi:10.1007/s10886-016-0807-7) contains supplementary material, which is available to authorized users.