Arabidopsis Pollen Tube (image) University of Massachusetts at Amherst Share Print E-Mail Caption UMass Amherst plant molecular biologist Alice Cheung says the male plant's pollen tube transports sperm to female target cells. She and colleagues identify two new receptors essential to this communication and other molecules whose interactions regulate the process. 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.