Attraction of the stink bug egg parasitoid Telenomus podisi to defence signals from soybean activated by treatment with cis-jasmone
Attraction of the stink bug egg parasitoid Telenomus podisi to defence signals from soybean activated by treatment with cis-jasmone
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DOI：
10.1111/j.1570-7458.2009.00836.x
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发表时间：
2009-05-01
影响因子：
1.9
通讯作者：
Borges, Miguel
中科院分区：
文献类型：
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作者：
Moraes, Maria C. B.;Laumann, Raul A.;Borges, Miguel
在草食动物攻击或化学活化后，植物释放出一种挥发性有机化合物（VOC）的混合物，这种混合物在质量或数量上与未受损植物所释放的混合物不同。改变的挥发性有机化合物混合物通常会吸引食草动物的天敌。大豆、Glycine max（L.）（豆科），当被蝽类食草动物破坏时，已经显示出释放出混合的VOC，其吸引蝽类卵寄生蜂黑卵蜂（Telenomus podisi）（Ashmead）（夜蛾目（Hyactera）：Scelionidae）到植物。在这项研究中，我们的目的是调查大豆（变种）挥发性有机化合物概况的变化。BR 16）的变化，并确定这些变化是否引起了T。波迪斯顺式茉莉酮引起的化学防御大豆类似于以前报道的臭虫损害。顺式茉莉酮诱导的主要成分为异茉莉烯、月桂烯、反式罗勒烯、水杨酸甲酯和反式-4，8，12-三甲基十三碳-1，3，7，11-四烯。在Y型管行为生物测定中，T.与未处理的植物相比，Podisi更喜欢顺式茉莉酮处理的植物。因此，顺式茉莉酮似乎诱导防御途径在大豆中类似于那些引起的臭虫损害，这种现象似乎是一个很有前途的工具，在未来的可持续性臭虫控制策略的操纵有益的天敌。反应的延迟表明，顺式茉莉酮处理并不直接引起反应，但更重要的是，它引起诱导防御的激活，在初始处理后很长时间。
After herbivore attack or chemical activation, plants release a blend of volatile organic compounds (VOCs) that is qualitatively or quantitatively different to the blend emitted by an undamaged plant. The altered blend of VOCs is then usually attractive to the herbivore's natural enemies. Soybean, Glycine max (L.) (Fabaceae), when damaged by stink bug herbivory, has been shown to emit a blend of VOCs that attracts the stink bug egg parasitoid Telenomus podisi (Ashmead) (Hymenoptera: Scelionidae) to the plant. In this study, our aim was to investigate changes in the VOC profile of soybean (var. BR16) elicited by the naturally occurring plant activator cis-jasmone, and to determine whether these changes elicited the attraction of T. podisi. cis-Jasmone elicited chemical defence in soybean similar to that previously reported for stink bug damage. The main components induced by cis-jasmone were camphene, myrcene, (E)-ocimene, methyl salicylate, and (E,E)-4,8,12-trimethyltrideca-1,3,7,11-tetraene. In Y-tube behavioural bioassays, T. podisi preferred cis-jasmone treated plants over untreated plants. Thus, cis-jasmone appears to induce defence pathways in soybean similar to those induced by stink bug damage, and this phenomenon appears to be a promising tool for the manipulation of beneficial natural enemies in future sustainable stink bug control strategies. The delay in response demonstrates that cis-jasmone treatment is not directly causing the response, but, more importantly, that it is causing activation of induced defence, long after initial treatment.