Increased Efficacy of Bt Cotton with ChaperoneTM

Variability of endotoxin expression and/or concentration within transgenic cotton (Bt) varieties has been and continues to be a concern of cotton growers, researchers, and breeders. While not a consistent problem, it can cause major economic problems. Transgenic cotton cultivars, to be effective throughout the season, must produce additional levels of proteins that conventional cottons do not. ChaperoneTM (formerly Arysta Experimental NP321), a protein transport enhancer, containing nitrophenolates has been shown to increase the efficacy of the endotoxin levels within transgenic cottons, resulting in higher worm mortality and increased yield. The current research was designed to quantify the enhanced protein/endotoxin levels and increased insect mortality in cotton from foliar applications of Chaperone.