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Characterization Of Oxidative Enzyme Changes In Buffalograsses Challenged By Blissus Occiduus, Tiffany Heng-Moss, Gautam Sarath, Frederick P. Baxendale, Dana Novak, Shauna Bose, Xinhi Ni, Sharron Quisenberry

Department of Entomology: Faculty Publications

This research investigated the role of oxidative enzymes in the defense response of buffalograss, Buchloe dactyloides (Nuttall) Engelmann, to Blissus occiduus Barber. Changes in catalase and peroxidase activity were observed in both resistant and susceptible buffalograsses in response to chinch bug feeding. Susceptible plants were shown to have a lower level of catalase activity compared with their respective control plants. By contrast, catalase activities of resistant plants were similar between infested and control buffalograsses throughout the study. Resistant plants had higher levels of peroxidase activity compared with their control plants, whereas peroxidase activities for control and infested susceptible plants remained …