Insect oviposition induces volatile emission in herbaceous plants that attracts egg parasitoids
Insect oviposition induces volatile emission in herbaceous plants that attracts egg parasitoids
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DOI：
10.1242/jeb.00732
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发表时间：
2004-01-01
影响因子：
2.8
通讯作者：
Bin, F
中科院分区：
文献类型：
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作者：
Colazza, S;Fucarino, A;Bin, F
卵寄生蜂基底三翅虫（膜翅目：小蜂科）对豆科植物取食和产卵诱导的激素反应(半翅目:Pentatomidae)。使用y形管嗅探仪进行的实验室生物测定证明了这一点。蚕豆叶片被绿僵菌的取食活动所破坏，其寄主的卵块已被放置在叶片上，叶片上产生了吸引基底夜蛾的激素。相比之下，未受损的叶片或没有卵的觅食受损的叶片不吸引雌蜂。法国豆科植物（Phaseolus vulgaris L.）在被寄主取食和携带虫卵损害时也会发出吸引人的激素。因此，取食和产卵诱导的激素的释放似乎不是植物特有的。合成激素的产生被证明是一种系统诱导的植物对取食损伤和产卵的生理反应。此外，当植物的其他部分因取食和携带卵子而受损时，未受损且未携带寄主卵子的部分会发出吸引人的激素。此外，单独提供或与受损蚕豆叶片联合提供的绿纹乳孢虫卵块对黄蜂没有吸引力。因此，受取食损害的叶片携带卵的吸引力是由于取食和产卵的诱导，而不是由于卵和受损叶片释放的有吸引力的挥发物的共同作用。生产synomones受到主人的年龄蛋质量,因为feeding-damaged叶轴承蛋质量吸引了拟寄生物,直到鸡蛋相似到了- 96 h老但不是一次幼虫孵化的鸡蛋(类似to120 h老)。这些结果表明，一年生植物能够通过吸吮昆虫的摄食和产卵产生激素。
The egg parasitoid Trissolcus basalis (Wollaston) (Hymenoptera: Scelionidae) responded to synomones emitted by leguminous plants induced by feeding and oviposition activity of the bug Nezara viridula (L.) (Heteroptera: Pentatomidae). This was shown by laboratory bioassays using a Y-tube olfactometer. Broad bean leaves (Vicia faba L.) damaged by feeding activity of N. viridula and on which host egg mass had been laid produced synomones that attracted T. basalis. By contrast, undamaged leaves or feeding-damaged leaves without eggs did not attract wasp females. French bean plants (Phaseolus vulgaris L.) also emitted attractive synomones when they were damaged by host feeding and carrying egg masses. Thus, release of feeding- and oviposition-induced synomones does not seem to be plant-specific. Synomone production was shown to be a systemically induced plant physiological response to feeding damage and oviposition. Also, parts of the plant that were left undamaged and did not carry host eggs emitted attractive synomones when other parts of the plant were damaged by feeding, and carrying eggs. Furthermore, wasps were not attracted by N. viridula egg masses offered alone or combined with damaged broad bean leaves. Thus, the attractiveness of feeding-damaged leaves carrying eggs is due to induction by feeding and oviposition rather than due to a combined effect of attractive volatiles released from eggs and damaged leaves. The production of synomones was influenced by the age of the host egg mass, because feeding-damaged leaves bearing egg masses attracted the parasitoid until the eggs were similar to72-96 h old but not once the larvae had hatched from the eggs (similar to120 h old). These results show that annual plants are able to produce synomones as a consequence of feeding and egg mass oviposition by a sucking insect.