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Every fall, a mysterious green growth appears on top of farmers’ fields: a microbial community that might be quietly improving the soil. Penn State researchers Mary Ann Bruns and Terry Bell are digging in to understand how. …

… root cells. The fungus is almost always found among and within poplar trees, and in an effort to understand its … United States, making it an energy feedstock of particular interest to the U.S. Department of Energy (DOE). By better … publishing  the results in  Molecular Plant-Microbe Interactions . The results were striking. Adding PM193 …