Intra-specific variation of Lactobacillus plantarum and Lactobacillus pentosus in sensitivity towards various bacteriocins

Fifty-two strains belonging to the Lactobacillus plantarum species group were identified and typed. They represented 32 clones of Lactobacillus plantarum and 7 clones of Lactobacillus pentosus. Sensitivity of all strains towards bacteriocins of four different producer strains was investigated using...

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Bibliographic Details
Published in:Antonie van Leeuwenhoek 2004-04, Vol.85 (3), p.209-216
Main Authors: CARL, G. D, LEISNER, J. J, SWINGS, J, VANCANNEYT, M
Format: Article
Language:English
Subjects:
Anti-Bacterial Agents - pharmacology
Antibiotics
Bacteria
Bacterial Typing Techniques
Bacteriocins
Bacteriocins - pharmacology
Bacteriology
Biological and medical sciences
Fundamental and applied biological sciences. Psychology
Genetic Variation
Lactic acid bacteria
Lactobacillus - classification
Lactobacillus - drug effects
Lactobacillus - genetics
Lactobacillus - metabolism
Lactobacillus pentosus
Lactobacillus plantarum
Lactococcus lactis
Microbial Sensitivity Tests
Microbiology
Minimum inhibitory concentration
Nisin
Nisin - pharmacology
Pathogenicity, virulence, toxins, bacteriocins, pyrogens, host-bacteria relations, miscellaneous strains
pediocin
Pediococcus acidilactici
Species Specificity
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Summary:Fifty-two strains belonging to the Lactobacillus plantarum species group were identified and typed. They represented 32 clones of Lactobacillus plantarum and 7 clones of Lactobacillus pentosus. Sensitivity of all strains towards bacteriocins of four different producer strains was investigated using a deferred inhibition test (DIT). Substantial intra-specific variation in sensitivity of clones was observed towards bacteriocinogenic lactic acid bacteria producing nisin ( Lactococcus lactis ATCC 11454) or pediocin PA-1 ( Pediococcus acidilactici PAC-1.0), while none of the strains were sensitive towards the two remaining bacteriocin producers. The minimum inhibitory concentration (MIC) of nisin towards selected strains confirmed the DIT results. No correlation between the susceptibility of fourteen selected strains towards nisin and an array of antibiotics was found. The present study indicates that the variation in bacteriocin-sensitivity within target species might be a potential limitation for the application of bacteriocins as biopreservatives.
ISSN:0003-6072
1572-9699
DOI:10.1023/B:ANTO.0000020155.79931.d7