Selection of resistant European Corn Borer (Ostrinia nubilalis) to Bt-corn and preliminary studies for the biochemical characterization
2005
Kaiser-Alexnat, Renate | Wagner, Wolfgang | Langenbruch, Gustav-Adolf | Kleespies, Regina G. | Keller, Brigitte | Meise, Thomas | Hommel, Bernd
One possibility to control the European Corn Borer is the cultivation of Bt-corn. However, this can result in the development of resistant pest populations. To control this, larvae were collected in Bt-corn fields and in F2 generation tested for resistance to the respective Bt-toxin. As preliminary studies for the biochemical characterization of possible mechanisms for resistance, studies on proteinase activities were conducted in the midgut of 5th instars of a susceptible German ECB population. The digestive proteinases trypsin, chymotrypsin, elastase and aminopeptidase could be identified.
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