Tobacco (IMAGE) Arizona State University Caption Transgenic tobacco plant is used to produced human butyrylcholinesterase -- a bioscavenger that helps clear acetylcholine from the nervous system. Credit The Biodesign Institute at Arizona State University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.