CRISPR Gene-Edited Trees in a Greenhouse (IMAGE) North Carolina State University Caption CRISPR-modified poplar trees (l) and wild poplar trees grow in an NC State greenhouse. Credit Chenmin Yang, NC State University Usage Restrictions None. License Original 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.