Summary of Awards to Date

Chill and osmotic tolerance of Listeria monocytogenes.

Read Full Publication...


Oct. 1, 2007 - Sep. 30, 2012

Award Number


Funding Agency

Center for Produce Safety


Gary M. Smith, Ph.D.
University of California, Davis


Listeria monocytogenes is a food poisoning bacterium that can grow in the refrigerator or under other stressful conditions. To grow under stress, the organism accumulates protective molecules from the food in which it lives by the action of 3 transport enzymes. We will find what causes these enzymes to be synthesized and activated, and how they are activated. Our goal is to prevent infections. The ultimate impact is to reduce the viability of Listeria monocytogenes, particularly persistent strains, by understanding the mechanism of resistance to environmental stress and refrigeration. Reducing the viability will decrease the loss of life and economin burden of product recalls due to Listeria monocytogenes.