Sugar Transport in Plants (image) Cornell University Caption The plant on the left is the normal (wild type) Verbascum phoenecium L. The plant on the right is a transgenic Verbascum, modified so that sugars do not form into larger, more complex sugars. The yellowing is the result of the plant's inability to export sugars from the leaf. Credit Ashlee McCaskill/Cornell Usage Restrictions None 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.