Attacks by a piercing-sucking insect (Myzus persicae Sultzer) or a chewing insect (Leptinotarsa decemlineata Say) on potato plants (Solanum tuberosum L.) induce differential changes in volatile compound release and oxylipin synthesis.
Attacks by a piercing-sucking insect (Myzus persicae Sultzer) or a chewing insect (Leptinotarsa decemlineata Say) on potato plants (Solanum tuberosum L.) induce differential changes in volatile compound release and oxylipin synthesis.
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DOI：
10.1093/jxb/erp015
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发表时间：
2009
影响因子：
6.9
通讯作者：
Fauconnier ML
中科院分区：
文献类型：
--
作者：
Gosset V;Harmel N;Göbel C;Francis F;Haubruge E;Wathelet JP;du Jardin P;Feussner I;Fauconnier ML
植物防御策略发挥作用的化合物的混合物依赖于攻击者的类型和来自不同的合成途径。该领域的兴趣主要集中在挥发性有机化合物（VOCs）和茉莉酸（JA）。相比之下，对氧化的多不饱和脂肪酸（PUFA），如PUFA-氢过氧化物，PUFA-氢氧化物或PUFA-酮知之甚少。PUFA-过氧化氢及其衍生物可能参与应激反应并显示出抗菌活性。氢过氧化物也是JA和一些挥发性化合物的前体。在本文中，植物对具有不同取食行为的昆虫的差异生化反应的特征在于不仅在VOC签名和JA配置文件，但也在其前体合成通过脂氧合酶（LOX）-途径在植物反应的早期阶段。为此目的，使用了两种具有不同取食行为的马铃薯主要害虫：科罗拉多马铃薯甲虫（马铃薯甲虫）（Leptinotarsa decemlineata Say），一种咀嚼食草动物，和绿色桃蚜（Myzus persicae Sulzer），一种刺吸式昆虫。识别的挥发性特征在功能上与攻击者和蚜虫的进食行为明显不同，这导致较小的损害，触发了较高数量的挥发物的排放。此外，9-脂氧合酶的产品，这通常是与防御病原体，专门激活蚜虫的攻击。此外，还确定了挥发物与JA积累及其前体演变之间的相关性。最后，强调了昆虫本身对虫害后植物反应的作用。
Plant defensive strategies bring into play blends of compounds dependent on the type of attacker and coming from different synthesis pathways. Interest in the field is mainly focused on volatile organic compounds (VOCs) and jasmonic acid (JA). By contrast, little is known about the oxidized polyunsaturated fatty acids (PUFAs), such as PUFA-hydroperoxides, PUFA-hydroxides, or PUFA-ketones. PUFA-hydroperoxides and their derivatives might be involved in stress response and show antimicrobial activities. Hydroperoxides are also precursors of JA and some volatile compounds. In this paper, the differential biochemical response of a plant against insects with distinct feeding behaviours is characterized not only in terms of VOC signature and JA profile but also in terms of their precursors synthesized through the lipoxygenase (LOX)-pathway at the early stage of the plant response. For this purpose, two leading pests of potato with distinct feeding behaviours were used: the Colorado Potato Beetle (Leptinotarsa decemlineata Say), a chewing herbivore, and the Green Peach Aphid (Myzus persicae Sulzer), a piercing-sucking insect. The volatile signatures identified clearly differ in function with the feeding behaviour of the attacker and the aphid, which causes the smaller damages, triggers the emission of a higher number of volatiles. In addition, 9-LOX products, which are usually associated with defence against pathogens, were exclusively activated by aphid attack. Furthermore, a correlation between volatiles and JA accumulation and the evolution of their precursors was determined. Finally, the role of the insect itself on the plant response after insect infestation was highlighted.
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影响因子：
56.9
作者：
Kessler, A;Halitschke, R;Baldwin, IT
通讯作者：
Baldwin, IT
影响因子：
3.2
作者：
Harmel, Nicolas;Delaplace, Pierre;Fauconnier, Marie-Laure
通讯作者：
Fauconnier, Marie-Laure
影响因子：
2.3
作者：
Delphia, Casey M.;Mescher, Mark C.;De Moraes, Consuelo M.
通讯作者：
De Moraes, Consuelo M.
影响因子：
1.9
作者：
Dickens, JC
通讯作者：
Dickens, JC
影响因子：
7.4
作者：
Moran, PJ;Thompson, GA
通讯作者：
Thompson, GA