O3

A major focus of my research is to understand not only how the relationship between plant and microbial communities vary among ecosystems, but also to understand how these relationships are altered by global change. Specifically, my research has focused on how increased elevated atmospheric O3 and CO2 affect plant-microbe interactions. The significance of global change for biogeochemical cycling is well recognized at broad scales, but the microbial mechanisms that regulate ecosystem responses to global change are not well understood.