Genetic basis of tetracycline resistance in food-borne isolates of Listeria innocua

B Facinelli; M C Roberts; E Giovanetti; C Casolari; U Fabio; P E Varaldo

doi:10.1128/aem.59.2.614-616.1993

Genetic basis of tetracycline resistance in food-borne isolates of Listeria innocua

Appl Environ Microbiol. 1993 Feb;59(2):614-6. doi: 10.1128/aem.59.2.614-616.1993.

Authors

B Facinelli¹, M C Roberts, E Giovanetti, C Casolari, U Fabio, P E Varaldo

Affiliation

¹ Institute of Microbiology, University of Ancona Medical School, Italy.

Abstract

Eleven of 12 tetracycline-resistant Listeria innocua strains, isolated from chicken or turkey frankfurters and mozzarella cheese, were shown to carry DNA sequences which hybridized with the Tet M probe; of these, two strains also hybridized with Tet K. The remaining strain hybridized with the Tet K probe only. The Tet M determinant appeared to be located on the chromosome; in one case, it was transferable by conjugation to recipients Listeria monocytogenes, Listeria ivanovii, and Enterococcus faecalis.

Publication types

Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, P.H.S.

MeSH terms

Cheese / microbiology
DNA, Bacterial / genetics*
Food Microbiology*
Listeria / classification
Listeria / genetics*
Listeria / isolation & purification
Poultry Products / microbiology
Tetracycline Resistance / genetics*

Substances

DNA, Bacterial

Grants and funding

AI24136/AI/NIAID NIH HHS/United States