Protist illustration (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption Protists are a type of microbe, and are slowly being recognized as key elements of the soil and rhizosphere microbiome. In this study, protist communities near plant roots were found to respond to the different developmental stages of switchgrass. Credit (Credit: Javier A. Ceja Navarro) Usage Restrictions Use credit 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.