Treated Bean Seeds (IMAGE) University of Washington Caption Bean seeds treated with hydrogen sulfide showed substantially more development at 96 hours after germination (top photo) than did the untreated control seeds (bottom). Credit Frederick Dooley/University of Washington Usage Restrictions News use 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.