Plants feed through one-way routes (IMAGE) Université de Genève Caption Detection of a fluorescent probe transported from the root periphery to the inner layers via plasmodesmata. Credit © Fiorenza, UNIGE 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.