Dr. Aretha Fiebig

Biography

Aretha Fiebig is a Fixed Term Associate Professor Research at Michigan State University, affiliated with the College of Natural Science. Her research primarily focuses on understanding how microorganisms sense and respond to their environment, which is crucial for maintaining homeostasis and optimizing fitness. She employs genetic approaches to probe the function of environmental sensory systems, with a particular emphasis on the regulation of bacterial surface attachment and stress responses. Fiebig studies Alphaproteobacteria, a diverse class of microbes that inhabit a wide range of environmental niches, including free-living and host-associated organisms. Her research on the freshwater soil bacterium Caulobacter crescentus has identified a small protein regulator, HfiA, that governs the synthesis of a polar adhesin, which the bacteria use to attach to surfaces. Her current work aims to understand how environmental signals modulate HfiA expression and the broader implications of sensory protein variability among closely related species in influencing microorganism physiology.

Research Interests

Experience