Matthew J. Trappe

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Immune complex (IC)-induced inflammation is integral to the pathogenesis of several autoimmune diseases. ICs activate the complement system and interact with IgG FcgammaR. In this study, we demonstrate that activation of the complement system, specifically generation of C5a, initiates the neutrophilic inflammation in IC peritonitis. We show that ablation of(More)
In forest ecosystems, fungal mats are functionally important in nutrient and water uptake in litter and wood decomposition processes, in carbon resource allocation, soil weathering and in cycling of soil resources. Fungal mats can occur abundantly in forests and are widely distributed globally. We sampled ponderosa pine/white fir and mountain hemlock/noble(More)
Crater Lake National Park, which is rich in a wide variety of mycorrhizal fungi such as these, presented the perfect site for studying the effects of prescribed burning on mycorrhizal fungi and soil attributes. From left—Cortinarius caperata and Tricholoma equestre. Credit: Matt Trappe. Summary A fi rst-of-its-kind study, conducted in a forest of old-growth(More)
Fevansia aurantiaca is an orange-colored truffle that has been collected infrequently in the Pacific Northwest of the USA. This sequestrate, hypogeous fungus was originally thought to be related to the genera Rhizopogon or Alpova in the Boletales, but the large, inflated cells in the trama and the very pale spore mass easily segregated it from these genera.(More)
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