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Many plants, when under nttack by herbivorous insects, emit vola-tiles that attract natural enemies of the assailants and help ward off the assault. For example, larvae of the western corn rootworm,rna beetle that is rapidly spreading and devastating maize crops worldwide, induce the roots of some maize varieties to emit (E)-β-caryophyllene (EβC), which attracts nematodes that infect and kill the voracious root pest. Many North American maize varieties no longer emit EβC because they have lost EβC synthase activity. JorgrnDegenhardt et al. used transgenic techniques to restore this signal to a nonemitting maize variety by inserting an EβC synthase gene from oregano.

机译：许多植物受到草食性昆虫的攻击时，会散发出挥发物，吸引攻击者的天敌并帮助抵御攻击。例如，在世界范围内迅速传播和毁灭性玉米作物的西部玉米根虫，rna甲虫的幼虫，诱使某些玉米品种的根发出（E）-β-石竹烯（EβC），从而吸引线虫感染并杀死线虫。根部有害生物。许多北美玉米品种不再释放EβC，因为它们失去了EβC合酶活性。 JorgrnDegenhardt等。通过插入来自牛至的EβC合酶基因，使用转基因技术将该信号恢复为不发光的玉米品种。

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《Proceedings of the National Academy of Sciences of the United States of America》 |2009年第32期|13145-13146|共2页
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收录信息美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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