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Field Evaluation Of Arbuscular Mycorrhizal Fungal Colonization In Bacillus Thuringiensis Toxin-Expressing (Bt) And Non-Bt Maize, Tanya E. Cheeke, Mitchell B. Cruzan, Todd N. Rosenstiel
Field Evaluation Of Arbuscular Mycorrhizal Fungal Colonization In Bacillus Thuringiensis Toxin-Expressing (Bt) And Non-Bt Maize, Tanya E. Cheeke, Mitchell B. Cruzan, Todd N. Rosenstiel
Biology Faculty Publications and Presentations
The cultivation of genetically engineered Bacillus thuringiensis toxin-expressing (Bt) maize continues to increase worldwide, yet the effects of Bt crops on arbuscular mycorrhizal fungi (AMF) in soil are poorly understood. In this field experiment, we investigated the impact of seven different genotypes of Bt maize and five corresponding non-Bt parental cultivars on AMF and evaluated plant growth responses at three different physiological time points. Plants were harvested 60 days (active growth), 90 days (tasseling and starting to produce ears), and 130 days (maturity) after sowing, and data on plant growth responses and percent AMF colonization of roots at each harvest …