Photosynthetic Reaction (image) University of Gothenburg Share Print E-Mail Caption This is a photograph of the photosynthetic reaction taken with an 80-microsecond X-ray pulse. Credit Gergely Katona/University of Gothenburg. Usage Restrictions None Share Print E-Mail 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.