Bacteriocin‐phage interaction (BaPI): Phage predation of Lactococcus in the presence of bacteriocins

Abstract Bacteriophages infecting dairy starter bacteria are a leading cause of milk fermentation failure and strategies to reduce the risk of phage infection in dairy settings are demanded. Along with dairy starters, bacteriocin producers (protective cultures) or the direct addition of bacteriocins...

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Main Authors: Claudia Rendueles, Susana Escobedo, Ana Rodríguez, Beatriz Martínez
Format: Article
Language:English
Published: Wiley 2022-08-01
Series:MicrobiologyOpen
Subjects:
Online Access:https://doi.org/10.1002/mbo3.1308
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author Claudia Rendueles
Susana Escobedo
Ana Rodríguez
Beatriz Martínez
author_facet Claudia Rendueles
Susana Escobedo
Ana Rodríguez
Beatriz Martínez
author_sort Claudia Rendueles
collection DOAJ
description Abstract Bacteriophages infecting dairy starter bacteria are a leading cause of milk fermentation failure and strategies to reduce the risk of phage infection in dairy settings are demanded. Along with dairy starters, bacteriocin producers (protective cultures) or the direct addition of bacteriocins as biopreservatives may be applied in food to extend shelf‐life. In this work, we have studied the progress of infection of Lactococcus cremoris MG1363 by the phage sk1, in the presence of three bacteriocins with different modes of action: nisin, lactococcin A (LcnA), and lactococcin 972 (Lcn972). We aimed to reveal putative bacteriocin‐phage interactions (BaPI) that could be detrimental and increase the risk of fermentation failure due to phages. Based on infections in broth and solid media, a synergistic effect was observed with Lcn972. This positive sk1‐Lcn972 interaction could be correlated with an increased burst size. sk1‐Lcn972 BaPI occurred independently of a functional SOS and cell envelope stress response but was lost in the absence of the major autolysin AcmA. Furthermore, BaPI was not exclusive to the sk1‐Lcn972 pairing and could be observed with other phages and lactococcal strains. Therefore, bacteriocins may facilitate phage predation of dairy lactococci and their use should be carefully evaluated.
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spelling doaj.art-0d508ea5cb534d72b220924d6aeb5dc72022-12-22T03:07:45ZengWileyMicrobiologyOpen2045-88272022-08-01114n/an/a10.1002/mbo3.1308Bacteriocin‐phage interaction (BaPI): Phage predation of Lactococcus in the presence of bacteriocinsClaudia Rendueles0Susana Escobedo1Ana Rodríguez2Beatriz Martínez3Department Technology and Biotechnology of Dairy Products Instituto de Productos Lácteos de Asturias (IPLA), CSIC Villaviciosa Asturias SpainDepartment Technology and Biotechnology of Dairy Products Instituto de Productos Lácteos de Asturias (IPLA), CSIC Villaviciosa Asturias SpainDepartment Technology and Biotechnology of Dairy Products Instituto de Productos Lácteos de Asturias (IPLA), CSIC Villaviciosa Asturias SpainDepartment Technology and Biotechnology of Dairy Products Instituto de Productos Lácteos de Asturias (IPLA), CSIC Villaviciosa Asturias SpainAbstract Bacteriophages infecting dairy starter bacteria are a leading cause of milk fermentation failure and strategies to reduce the risk of phage infection in dairy settings are demanded. Along with dairy starters, bacteriocin producers (protective cultures) or the direct addition of bacteriocins as biopreservatives may be applied in food to extend shelf‐life. In this work, we have studied the progress of infection of Lactococcus cremoris MG1363 by the phage sk1, in the presence of three bacteriocins with different modes of action: nisin, lactococcin A (LcnA), and lactococcin 972 (Lcn972). We aimed to reveal putative bacteriocin‐phage interactions (BaPI) that could be detrimental and increase the risk of fermentation failure due to phages. Based on infections in broth and solid media, a synergistic effect was observed with Lcn972. This positive sk1‐Lcn972 interaction could be correlated with an increased burst size. sk1‐Lcn972 BaPI occurred independently of a functional SOS and cell envelope stress response but was lost in the absence of the major autolysin AcmA. Furthermore, BaPI was not exclusive to the sk1‐Lcn972 pairing and could be observed with other phages and lactococcal strains. Therefore, bacteriocins may facilitate phage predation of dairy lactococci and their use should be carefully evaluated.https://doi.org/10.1002/mbo3.1308bacteriocinbacteriophagedairy startersLactococcusmilk fermentation
spellingShingle Claudia Rendueles
Susana Escobedo
Ana Rodríguez
Beatriz Martínez
Bacteriocin‐phage interaction (BaPI): Phage predation of Lactococcus in the presence of bacteriocins
MicrobiologyOpen
bacteriocin
bacteriophage
dairy starters
Lactococcus
milk fermentation
title Bacteriocin‐phage interaction (BaPI): Phage predation of Lactococcus in the presence of bacteriocins
title_full Bacteriocin‐phage interaction (BaPI): Phage predation of Lactococcus in the presence of bacteriocins
title_fullStr Bacteriocin‐phage interaction (BaPI): Phage predation of Lactococcus in the presence of bacteriocins
title_full_unstemmed Bacteriocin‐phage interaction (BaPI): Phage predation of Lactococcus in the presence of bacteriocins
title_short Bacteriocin‐phage interaction (BaPI): Phage predation of Lactococcus in the presence of bacteriocins
title_sort bacteriocin phage interaction bapi phage predation of lactococcus in the presence of bacteriocins
topic bacteriocin
bacteriophage
dairy starters
Lactococcus
milk fermentation
url https://doi.org/10.1002/mbo3.1308
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AT anarodriguez bacteriocinphageinteractionbapiphagepredationoflactococcusinthepresenceofbacteriocins
AT beatrizmartinez bacteriocinphageinteractionbapiphagepredationoflactococcusinthepresenceofbacteriocins