Dong Wang, University of Massachusetts at Amherst (image) University of Massachusetts at Amherst Share Print E-Mail Caption Dong Wang and colleagues discovered how a plant gene encodes a special protein to create a sort of free trade zone on roots, where symbiotic bacteria and fungi exchange nutrients with host plants. The protein allows the plant to recognize the symbionts' cell membrane. Credit UMass Amherst Usage Restrictions None 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.