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[ÇóÖú] »ùÒò¹¤³ÌһƪScienceÎÄÕ¡£Çó·­ÒëÕªÒª¡£Genetic Engineering

¸ôÐÐÈç¸ôɽ°¡ Çó·­ÒëÏÂÃæÕªÒª¡£µ±È» Èç¹ûÄú¿´¹ýÕâÆªÎÄÏ× °ïæ½éÉÜÒ»ÏÂÎÄÕÂÖ÷ÒªÑо¿ÄÚÈÝÔٺò»¹ýÁË ÌØ´Ë¸Ðл ¸Ðл ¿É×·¼Ó½ð±ÒµÄ¡£Herbivore-damaged plants release complex mixtures of volatiles that attract
natural enemies of the herbivore. To study the relevance of individual com-
ponents of these mixtures for predator attraction, we manipulated herbivory-
induced volatiles through genetic engineering. Metabolic engineering of
terpenoids, which dominate the composition of many induced plant volatile
bouquets, holds particular promise. By switching the subcellular localization of
the introduced sesquiterpene synthase to the mitochondria, we obtained
transgenic Arabidopsis thaliana plants emitting two new isoprenoids. These
altered plants attracted carnivorous predatory mites (Phytoseiulus persimilis)
that aid the plants¡¯ defense mechanisms.

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