-transparent.png){kind=logo}
Phage-resistant mutants have been isolated from Streptococcus thermophilus. Selection was carried out using anti-phage antibodies or Hoechst 33258-labelled phages. Two mutants out of eight tested displayed reduced acidifying capacity. Selection of the bacteria that extruded more rapidly the fluorochrome 5-6-carboxyfluorescein diacetate (CFDA) restored the acidifying capacity of these two mutants to the level of the parental strains. Mutants displaying phage resistance and good acidifying capacity were obtained in 4-5 days. New phages that are able to overcome the protection mechanisms of the existing bacteria arise continually in the dairy environment. The procedures described here permit to replace promptly the starter culture susceptible to newly emerged phages with a resistant one.
M Viscardi, and
R Capparelli, and
R Di Matteo, and
D Carminati, and
G Giraffa, and
D Iannelli
June 2004,
Journal of dairy science,
M Viscardi, and
R Capparelli, and
R Di Matteo, and
D Carminati, and
G Giraffa, and
D Iannelli
November 2004,
Archives of microbiology,
M Viscardi, and
R Capparelli, and
R Di Matteo, and
D Carminati, and
G Giraffa, and
D Iannelli
January 1970,
Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Zweite naturwissenschaftliche Abt.: Allgemeine, landwirtschaftliche und technische Mikrobiologie,
M Viscardi, and
R Capparelli, and
R Di Matteo, and
D Carminati, and
G Giraffa, and
D Iannelli
September 2007,
Food microbiology,
M Viscardi, and
R Capparelli, and
R Di Matteo, and
D Carminati, and
G Giraffa, and
D Iannelli
July 2007,
Journal of microbiological methods,
M Viscardi, and
R Capparelli, and
R Di Matteo, and
D Carminati, and
G Giraffa, and
D Iannelli
March 2010,
Journal of applied microbiology,
M Viscardi, and
R Capparelli, and
R Di Matteo, and
D Carminati, and
G Giraffa, and
D Iannelli
January 2004,
Nucleic acids research,
M Viscardi, and
R Capparelli, and
R Di Matteo, and
D Carminati, and
G Giraffa, and
D Iannelli
February 2018,
Applied and environmental microbiology,
M Viscardi, and
R Capparelli, and
R Di Matteo, and
D Carminati, and
G Giraffa, and
D Iannelli
April 2006,
Applied and environmental microbiology,
M Viscardi, and
R Capparelli, and
R Di Matteo, and
D Carminati, and
G Giraffa, and
D Iannelli
July 1992,
The Journal of antimicrobial chemotherapy,
