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Applied and Environmental Microbiology, July 2007, p. 4677-4680, Vol. 73, No. 14
0099-2240/07/$08.00+0     doi:10.1128/AEM.02351-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.

Insertional Mutagenesis To Generate Lantibiotic Resistance in Lactococcus lactis{triangledown}

Caitriona M. Guinane,1,2,{dagger} Paul D. Cotter,1 Elaine M. Lawton,1 Colin Hill,1,2* and R. Paul Ross2,3

Department of Microbiology, University College Cork, Cork, Ireland,1 Alimentary Pharmabiotic Centre, University College Cork, Cork, Ireland,2 Teagasc Dairy Products Research Centre, Moorepark, Fermoy, County Cork, Ireland3

Received 5 October 2006/ Accepted 12 May 2007

While the potential emergence of food spoilage and pathogenic bacteria with resistance to lantibiotics is a concern, the creation of derivatives of starter cultures and adjuncts that can grow in the presence of these antimicrobials may have applications in food fermentations. Here a bank of Lactococcus lactis IL1403 mutants was created and screened, and a number of novel genetic loci involved in lantibiotic resistance were identified.

* Corresponding author. Mailing address: Department of Microbiology, University College Cork, Cork, Ireland. Phone: 353-21-4901373. Fax: 353-21-4903101. E-mail: c.hill{at}ucc.ie

{triangledown} Published ahead of print on 25 May 2007.

{dagger} Present address: Laboratory for Bacterial Evolution and Pathogenesis, Centre for Infectious Diseases, Chancellor's Building, University of Edinburgh, Edinburgh EH16 4SB, United Kingdom.

Applied and Environmental Microbiology, July 2007, p. 4677-4680, Vol. 73, No. 14
0099-2240/07/$08.00+0     doi:10.1128/AEM.02351-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.





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