The fluorescence image (IMAGE) University of Jyväskylä - Jyväskylän yliopisto Caption Prints of lingonberry leaves on growth medium reveal the diversity of associated bacteria. The fluorescence image on the right, taken with NIRis, shows only the phototrophic bacteria colonies in purple. Credit Project researcher Ole Franz from the University of Jyväskylä. Usage Restrictions Can be used in news and social media posts with picture credit information included. 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.