Water Deprivation Induces Biochemical Changes Without Reduction in the Insecticidal Activity of Maize and Soybean Transgenic Plants.

Journal of Economic Entomology
Juliana Barroso SilvaGuilherme Duarte Rossi

Abstract

Like conventional crops, transgenic plants expressing insecticidal toxins from Bacillus thuringiensis (Bt) are subjected to water deprivation. However, the effects of water deprivation over the insecticidal activity of Bt plants are not well understood. We submitted Bt maize and Bt soybean to water deprivation and evaluated biochemical stress markers and the insecticidal activity of plants against target insects. Bt maize (DAS-Ø15Ø7-1 × MON-89Ø34-3 × MON-ØØ6Ø3-6 × SYN-IR162-4) containing the PowerCore Ultra traits, Bt soybean (DAS-444Ø6-6 × DAS-81419-2) with the Conkesta E3 traits, and commercial non-Bt cultivars were cultivated and exposed to water deprivation in the greenhouse. Leaves were harvested for quantification of hydrogen peroxide, malondialdeyde (MDA), and total phenolics and insecticidal activity. Maize or soybean leaf disks were used to evaluate the insecticidal activity against, respectively, Spodoptera frugiperda (J.E Smith) and Chrysodeixis includens (Walker) neonates. Except for Bt soybean, water deprivation increased hydrogen peroxide and MDA contents in Bt and non-Bt plants. Both biochemical markers of water deficit were observed in lower concentrations in Bt plants than in non-Bt commercial cultivars. Water ...Continue Reading

References

Apr 1, 1968·Archives of Biochemistry and Biophysics·R L Heath, L Packer
Aug 17, 2002·Current Opinion in Plant Biology·Steven NeillJohn Hancock
Apr 27, 2004·Nature Biotechnology·Ricarda NiggewegCathie Martin
Sep 21, 2004·Annual Review of Plant Biology·Klaus Apel, Heribert Hirt
Dec 18, 2004·Journal of Plant Physiology·Attipalli Ramachandra ReddyMunusamy Vivekanandan
Jan 8, 2005·Nature Biotechnology·Sarah L BatesAnthony M Shelton
Dec 17, 2009·Plant Physiology and Biochemistry : PPB·Lyudmila Simova-StoilovaUrs Feller
Jan 17, 2012·Journal of Proteomics·Payam Pour MohammadiSetsuko Komatsu
Apr 16, 2013·Plant Physiology and Biochemistry : PPB·Giovanni AgatiMassimiliano Tattini
May 13, 2014·Plant Physiology and Biochemistry : PPB·Kilani Ben RejebArnould Savouré
Jan 27, 2015·Current Opinion in Plant Biology·Ryo Nakabayashi, Kazuki Saito
Mar 5, 2016·Frontiers in Plant Science·Nasser SewelamPeer M Schenk
Jul 21, 2016·Current Opinion in Insect Science·C A BlancoE Willink
Jan 28, 2020·Trends in Plant Science·Patricia S Girón-CalvaPaul Christou

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