Localization of Pigments in Petals (IMAGE) University of Groningen Caption Localization of pigments in the petals of Phaseolus coccineus (runner bean). Scale bar: 50 µm. Credit Casper van der Kooi Usage Restrictions With credit 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.