Austin Frisbey - Postdoctoral Researcher
B.S. Biology - University of Texas at El Paso
Ph.D. Molecular and Cellular Biology - University of Arizona
Contact: aafrisbey (at) arizona.edu
I'm a postdoctoral researcher in the Beilstein lab. With a background in molecular biology and genetics, my interest in plant research began as an undergraduate in a plant molecular ecology lab. My early projects spanned from studying local adaptation in Eriophorum vaginatum populations in Alaska to analyzing the phytobiome diversity of parasitic orchids across Arizona's sky islands. These experiences sparked a fascination with the evolution of metabolic pathways, which continue to drive my work and interests today.
During the formative years of my research career, I took a particular interest in plant biotechnology—especially as public perception of genetically engineered crops was often negative. Seeking a deeper understanding of these complex issues, I became engaged in the public debate, which helped fuel an even deeper interest in complex plant metabolic engineering. This deep interest encouraged me to pursue a PhD, where my research focused on the regulation of nitrogen use efficiency in plants, specifically investigating the role of the Arabidopsis thaliana receptor kinase CEPR1 and its protein partners in regulating root architecture in response to different levels of nitrogen.
A major component of my dissertation involved deploying a fluorescent biosensor, R2D2, to quantify plant hormone activity in different mutants. In learning about how this biosensor worked, I realized the broader potential of plant biotechnology—especially biosensors—to benefit both farmers and researchers. Biosensors can provide real-time insights into plant health, such as nutrient status, allowing for more precise fertilizer application and improved research on plant nutrient responses in a lab setting.
Such tools would be remarkably useful, as modern agriculture focuses on high-yield crop varieties that often require substantial nutrient application, which leads to over-fertilization and subsequently, environmental pollution. By developing crops that thrive with less fertilizer, or that can report the status of their health to farmers to allow more accurate, targeted crop treatments, my work supports both sustainable agriculture and environmental stewardship. The overarching goal of my current research aims to improve nitrogen use efficiency in plants by discovering and engineering solutions that can aid in reducing farmers' fertilizer dependence.
