Corn Field (IMAGE) University of California - Riverside Caption Scientists at UC Riverside have identified the molecular mechanism by which photoreceptors called phytochromes control plant growth and development. The findings have implications in agriculture, where farmers are increasingly looking to grow more food on less land. Credit Gilles San Martin (CC BY 2.0) 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.