Rawle, a fourth-year graduate student in the lab of , will use her award to participate in a research rotation at Huazhong Agricultural University in Wuhan, China in the lab of Dr. Gejiao Wang. She will also attend two Canadian conferences. Rachel’s research looks at arsenic speciation. Long-standing research has determined microbes as the principal drivers of arsenic speciation. Recent studies show human-associated microbiomes likely play a similar role in arsenic redox chemistry, particularly within the gastrointestinal tract (GIT). While these studies show that GIT microbiota impact the toxicity and uptake of arsenic into the host, the underlying mechanisms are only theoretical. Rachel’s research is designed to boldly address important aspects of GIT-microbiome-As relations, ultimately assessing the timing of arsenic speciation, toxicity and absorption events within the GIT.


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