Testing the Modified Plants (IMAGE) University of Washington Caption Long Zhang, a research scientist in the UW's civil and environmental engineering department, puts a pothos ivy plant into a glass tube to test its ability to break down benzene or chloroform. Credit Credit: Mark Stone/University of Washington Usage Restrictions Available for use with appropriate caption. 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.