Infection Processes (IMAGE) American Phytopathological Society Caption Infection processes of Puccinia striiformis f. sp. tritici basidiospores and urediniospores on barberry and wheat. Credit Jing Zhao 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.