Botany and plant pathology research (IMAGE) Purdue University Caption PhD candidate Yuan-Chi Chien, a PhD candidate in botany and plant pathology at Purdue University, at work in the laboratory. Credit Purdue University Photo/Tom Campbell Usage Restrictions News organizations may use this image in reports about the work of Purdue University's Gyeong Mee Yoon and her collaborators. License Original 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.