(IMAGE) Kumamoto University Caption In a new study, researchers from Kumamoto University have found that DMSP, a sulfur-containing organic molecule, was produced by freshwater phytoplankton in colder days to help with untifreezing in ice water. Their results revealed a cryoprotectant role for DMSP Credit Professor Kei Toda from Kumamoto University Usage Restrictions Cannot be used without prior permission 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.