Super golden lettuce richer in vitamin A (IMAGE) Universitat Politècnica de València Caption A team from the IBMCP (UPV-CSIC) has developed a technique that multiplies the beta-carotene content in plant leaves. Credit UPV Usage Restrictions No restrictions. License Public Domain 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.