Pseudo-nitzschia (IMAGE) University of California - Santa Cruz Caption Cells of the diatom Pseudo-nitzschia, a type of single-celled algae, produce the neurotoxin domoic acid under certain conditions. This image is from a water sample collected in Monterey Bay in 2015. Credit Alyssa Gellene Usage Restrictions For use only with news coverage of this research 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.