Effect of Bt genetic engineering on indirect defense in cotton via a tritrophic interaction

被引：17

作者：

Blassioli Moraes, Maria Carolina ^{[1
]}

Laumann, Raul Alberto ^{[1
]}

Santos Aquino, Michely Ferreira ^{[1
]}

Paula, Debora Pires ^{[1
]}

Borges, Miguel ^{[1
]}

机构：

[1] Embrapa Genet Resources & Biotechnol, BR-70770917 Brasilia, DF, Brazil

来源：

TRANSGENIC RESEARCH | 2011年 / 20卷 / 01期

关键词：

Tritrophic interaction; Biosafety analysis; Natural enemy; Herbivory; Plant volatile defensive compounds; Cotton; PARASITOID TELENOMUS-PODISI; STINK BUG; INDUCED VOLATILES; PLANTS; MAIZE; INDUCTION; ATTRACT; SIGNAL; ACID;

D O I：

10.1007/s11248-010-9399-0

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

We present a tritrophic analysis of the potential non-intended pleiotropic effects of cry1Ac gene derived from Bacillus thurigiensis (Bt) insertion in cotton (DeltaPine 404 Bt BollgardA (R) variety) on the emission of herbivore induced volatile compounds and on the attraction of the egg parasitoid Trichogramma pretisoum (Hymenoptera: Trichogrammatidae). Both the herbivore damaged Bt variety and its non-Bt isoline (DeltaPine DP4049 variety) produced volatiles in higher quantity when compared to undamaged plants and significantly attracted the egg parasitoids (T. pretiosum) when compared to undamaged plants. However, Trichogramma pretiosum did not differentiate between the transgenic and nontransgenic varieties, suggesting that the ratios between the compounds released by herbivory damaged -Bt cotton and herbivory damaged-nonBt cotton did not change significantly. Finally, no detrimental effect of the Bt genetic engineering was detected related to the volatile compounds released by Bollgard cotton on the behavior of the natural enemy studied.

引用

页码：99 / 107

页数：9

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