Delucia (image) University of Illinois at Urbana-Champaign Caption Leaves grown under high CO2 lose a vital defense pathway, said U. of I. plant biology professor and department head Evan DeLucia, an author on the new study. Credit Photo by L. Brian Stauffer, U. of I. News Bureau. Usage Restrictions Photo may be used only with stories about the research described in the news release. Please credit: Photo by L. Brian Stauffer, U. of I. News Bureau. 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.