Chenming Cui and David Haak in the lab (IMAGE) Virginia Tech Caption Recent doctoral graduate Chenming Cui (left) and David Haak (right), an assistant professor in the School of Plant and Environmental Sciences in the College of Agriculture and Life Sciences, in the lab. Credit Cris Thompson for Virginia Tech. 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.