Cited by 115Probiotics and Fermented FoodsAntimicrobial Peptides and ActivitiesBacterial Genetics and Biotechnology

Detection and characterization of a bacteriocin, garviecin L1-5, produced by Lactococcus garvieae isolated from raw cow’s milk

Villani, F., Aponte, M., Blaiotta, G., Mauriello, G., Pepe, O., Moschetti, G.·2001·Journal of Applied Microbiology

Abstract

AIMS: The identification of a bacteriocin-producing lactococcal strain isolated from raw cow's milk is reported, along with production conditions, physical and chemical properties, and mode of action of the bacteriocin. METHODS AND RESULTS: On the basis of resistance to clindamycin, species-specific PCR and amplification of the 16S-23S rDNA spacer region, the strain was identified as Lactococcus garvieae. Its bacteriocin, designated garviecin L1-5, was bactericidal against closely related species and strains of species from different genera, including Listeria monocytogenes and Clostridium spp. Garviecin L1-5 was shown to be proteinaceous by protease inactivation and was unaffected by heat treatments, also at low pH values. When amplifying known lactococcal bacteriocin genes using DNA from strain L1-5 as template, no amplification products were observed on the agarose gel. The molecular weight of garviecin L1-5 was about 2.5 kDa. As far as is known, no bacteriocins have been detected from Lactococcus garvieae. CONCLUSION: The general properties of garviecin L1-5 are characteristic of the low-molecular-weight bactericidal peptide group. SIGNIFICANCE AND IMPACT OF THE STUDY: The survey of micro-organisms for novel antimicrobial substances provided valuable information on their physiology, ecology and practical application.

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Crossref · 10.1046/j.1365-2672.2001.01261.x

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Authors
Villani, F., Aponte, M., Blaiotta, G., Mauriello, G., Pepe, O., & Moschetti, G.
Affiliations
University of Naples Federico II (IT)
Venue
Journal of Applied Microbiology
Published
2001-03-02
Volume
90
Issue
3
Pages
430-439
ISSN
  • 1364-5072 (ISSN-L)
  • 1365-2672
OpenAlex
W2052620862
Cited by
115
References
41
Citations by year
2026: 1 · 2024: 7 · 2023: 7 · 2022: 8 · 2021: 4 · 2020: 6 · 2019: 1 · 2018: 2 · 2017: 4 · 2016: 5 · 2015: 4 · 2014: 10 · 2013: 5 · 2012: 7
FWCI
3.05
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Applied Microbiology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Probiotics and Fermented Foods
  • Life Sciences › Immunology and Microbiology › Microbiology › Antimicrobial Peptides and Activities
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Bacterial Genetics and Biotechnology
Keywords
bacteriocins, Lactococcus garvieae, raw cow milk, antimicrobial activity, Listeria monocytogenes, Clostridium
MeSH terms
Animals, Bacteria, Bacteriocins, Cattle, Electrophoresis, Polyacrylamide Gel, Microbial Sensitivity Tests, Milk, Species Specificity, Polymerase Chain Reaction, Lactococcus

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