Professor
Ph.D. Iowa State, 1977

Department of Veterinary Science and Microbiology
University of Arizona 
Tucson, AZ 85721

Phone (520)-621-4687 
Fax (520) 621-6366
E-Mail joens@ag.arizona.edu

Research interests

Pathogenesis and immunology of porcine intestinal diseases

Teaching

MIC 454: Host Microbial Interactions

Hyatt DR, Joens LA (1997) Analysis of the lytic activity of the Serpulina hyodysenteriae hemolysin. Infect Immun 1997 65:4877-9

Konkel, M.E., Joens, L.A., and Mixter, P.F.  Campylobacter, 2nd Ed. I. Nachamki and M.J. Blaser.  “Molecular characterization of Campylobacter jejuni virulence determinants”. P217-240.  1999.

Day, W.A., Galindo, M.A., and Joens, L.A.: Killing of Campylobacter jejunikatA mutant in peritoneal macrophage. Infect. Immun. 68:6337-6345. 2000.

Galindo, M.A., Day, W.A., Raphael, B.H. and Joens, L.A.: Cloning and characterization of a Campylobacter jejuni iron-uptake operon.  Current Micro. 42:139-143. 2001.

Konkel, M.E., Monteville, M.R., Rivera-Amill, V., and Joens, L.A.: The pathogenesis of Campylobacter jejuni-mediated enteritis.  Curr. Issues. Intest. Microbiol. 2 (2):55-71. 2001.

Raphael, B.H. and L.A. Joens.:  FeoB is not required for ferrous iron uptake in  Campylobacter jejuni.  Can. J. Microbiology. 49:727-731. 2003.

Konkel, M.E., Monteville, M.R., Klena, J.D., Joens, L.A.:” Microbial Food Safety in Animal Agriculture: Current Topics” by M.E. Torrence and R.E. Isaacson. Chapter 21, Iowa State Press. June, 2003.

Lee, M.K., S.J. Billington, L.A. Joens.: Potential Virulence and Antimicrobial Resistance in Campylobacter jejuni Isolates Obtained from Food and Companion Animals. Foodborne Path. Dis. 1:223-230. 2004.

Joens, L.A.: “Campylobacter : Molecular and Cellular Biology” by M.E. Konkel. Chapter 22, p 415-420. Horizon Press. 2004.

Brands, D.A., A.E. Inman, C.P. Gerba, C.J. Maré, S. J. Billington, L. Saif, J.F. Levine, L.A. Joens.:The prevalence of Salmonella spp. in U.S. oysters. Appl. Environ. Microbiol.  71:893-897. Feb. 2005.

Brands, D.A., S.J. Billington, J.F. Levine, L.A. Joens.:Genotyping and Resistance Determination of Salmonella Newport Isolates Obtained from U.S. Market Oysters.   Foodborne Path. Dis.  2:111-114. 2005.