Professor Dr. Dorothee Staiger (image) Bielefeld University Share Print E-Mail Caption The biochemist Professor Dr. Dorothee Staiger from Bielefeld University has been studying the biological clock in plants for twenty years. Screenshot: research_tv. Credit Screenshot: research_tv Usage Restrictions The image may only be used with appropriate caption or credit. Share Print E-Mail 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.