Hydrogen Sulfide-Treated Beans (IMAGE) University of Washington Caption A bean plant treated with hydrogen sulfide (top) is substantially bigger at two weeks after gestation than the control plant (bottom) that was untreated. 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.