<I>C. elegans</I> Sperm (2 of 2) (IMAGE) San Francisco State University Caption Fluorescent images of C. elegans sperm. Shown in red are GSP-3/4, phosphatases required for fertility, white are membranous organelles and green is major sperm protein, a C. elegans protein important for motility. GSP-3/4 is shown to be an important regulator of MSP in the Wu et al. paper. Credit Jui-ching Wu and Diana Chu Usage Restrictions For use by reporters only. License Licensed 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.