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Journal of Bacteriology, June 2004, p. 4038-4041, Vol. 186, No. 12
0021-9193/04/$08.00+0 DOI: 10.1128/JB.186.12.4038-4041.2004
Copyright © 2004, American Society for Microbiology. All Rights Reserved.
Resuscitation of a Defective Prophage in Salmonella Cocultures
Nara Figueroa-Bossi* and Lionello Bossi
Centre de Génétique Moléculaire, CNRS, Gif-sur-Yvette, France
Received 5 January 2004/
Accepted 15 March 2004
Widely studied Salmonella enterica serovar Typhimurium strains ATCC 14028s and SL1344 harbor a cryptic ST64B prophage unable to produce infectious virions. We found that coculturing either strain with an isogenic sibling lacking the prophage leads to the appearance of active forms of the virus. Active phage originates from reversion of a +1 frameshift mutation at a monotonous G:C run in a presumptive tail assembly pseudogene.
* Corresponding author. Mailing address: Centre de Génétique Moléculaire, CNRS, 91198 Gif-sur-Yvette cedex, France. Phone: 33 1 69 82 38 11. Fax: 33 1 69 82 38 77. E-mail:
figueroa{at}cgm.cnrs-gif.fr.
Journal of Bacteriology, June 2004, p. 4038-4041, Vol. 186, No. 12
0021-9193/04/$08.00+0 DOI: 10.1128/JB.186.12.4038-4041.2004
Copyright © 2004, American Society for Microbiology. All Rights Reserved.
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