Study Plants (IMAGE) University of Maryland Baltimore County Caption These Arabidopsis plants are part of studies to determine links between the plant defense system and circadian clock carried out by Hua Lu, professor of biological sciences at UMBC, and her lab members. The results could lead to plants that are more effective at fending off pathogens and pests or even influence human medical treatment. Credit Marlayna Demond for UMBC Usage Restrictions with credit 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.