Early leaf flush (IMAGE) Oregon State University Caption The early shoot flushing of trees in this image was caused by overexpressing the EBB1 gene during natural release from dormancy in spring. (Photo courtesy of Oregon State University) Credit (Photo courtesy of Oregon State University) 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.