Candida albicans, in two forms (IMAGE) University at Buffalo Caption Microscope images show Candida albicans?in two distinct forms: as single-celled yeast (left), and in an elongated, thread-like form called a true hypha (right). Research suggests that a protein called Sir2 is among factors that help determine which of these forms C. albicans takes. Credit Credit: Guolei Zhao Usage Restrictions This image may only be used in news reports discussing the research in the related press release. 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.