Light-Testing Bacteria (IMAGE) Indiana University Caption The marine cyanobacterium <em>Synechococcus</em> is tested for its response to various light colors by IU, Japanese and French scientists in the Okazaki Large Spectrograph at the National Institute for Basic Biology in Okazaki, Japan. Laterally projected regions of the light spectrum are reflected downward by mirrors positioned above the beakers containing the cells being tested. Credit David Kehoe Usage Restrictions None 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.