Department of Microbiology Faculty

John Helmann

John Helmann

John Helmann

Professor
and Chairman

Department of Microbiology Chair
Microbial physiology with a focus on Bacillus subtilis. We study physiological and genetic responses elicited by cell envelope stress (e.g. antibiotics), oxidative stress, and metal ion limitation and excess.

Ian Hewson

Ian Hewson

Ian Hewson

Associate Professor

Marine microbiology; biogeochemistry, diversity, and distribution of marine microorganism; metagenomics and metatranscriptomics.

Eugene Madsen

"who", "what", "how", "where", "when", and "why" of microbiological processes in water, soil, sediments, and ground water; biogeochemistry of naphthalene- and chlorinated solvent-contaminated aquifers.

Stephen Winans

Use Agrobacterium tumefaciens as a model to study how cells detect other cells; this plant pathogen detects a variety of chemical signal molecules released from host plant cells and also uses a type of bacterial pheromone called an autoinducer to estimate its population densities.

Stephen Zinder

Our laboratory studies microorganisms, particularly anaerobes, which carry out chemical transformations. Present areas of interest include physiology and molecular biology of nitrogen fixation in methanogenic archaea and ecology and physiology of microbial reductive dechlorination of toxic chemicals.