Nitrogen Genes Are Key Better Crop Yields (IMAGE) University of California - Davis Caption Nitrogen metabolism is vitally important to plants. The Arabidopsis plant on right was grown in low-nitrogen conditions, meaning it had to grow longer roots to find more nitrogen. Researchers at UC Davis and the Cold Spring Harbor Laboratory have now identified a complex of genes involved in harvesting and processing nitrogen in plants. Credit Allison Gaudinier, UC Davis Usage Restrictions May be used with acknowledgement. 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.