Detection and activity of lactacin B, a bacteriocin produced by Lactobacillus acidophilus.

@article{Barefoot1983DetectionAA,
  title={Detection and activity of lactacin B, a bacteriocin produced by Lactobacillus acidophilus.},
  author={S. Barefoot and T. Klaenhammer},
  journal={Applied and environmental microbiology},
  year={1983},
  volume={45 6},
  pages={
          1808-15
        }
}
A total of 52 strains of Lactobacillus acidophilus were examined for production of bacteriocins. A majority (63%) demonstrated inhibitory activity against all members of a four-species grouping of Lactobacillus leichmannii, Lactobacillus bulgaricus, Lactobacillus helveticus, and Lactobacillus lactis. Four L. acidophilus strains with this activity also inhibited Streptococcus faecalis and Lactobacillus fermentum, suggesting a second system of antagonism. Under conditions eliminating the effects… Expand
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References

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Detection and activity of lactacin B, a bacteriocin produced by Lactobacillus acidophilus
TLDR
Examination of strains of L. acidophilus within the six homology groupings of Johnson et al. demonstrated that production of the bacteriocin lactacin B could not be used in classification of neotype L. Acidophilus strains, however, the usefulness of employing sensitivity to lactac in B in classified of dairy lactobacilli is suggested. Expand
Purification and characterization of the Lactobacillus acidophilus bacteriocin lactacin B.
TLDR
Characteristics identified for lactacin B indicated that it was a peptide and confirmed its identity as a bacteriocin and its activity was bactericidal to sensitive cells and restricted to members of the family Lactobacilliaceae. Expand
Isolation and Characterization of a Bacteriocin from a Homofermentative Lactobacillus
TLDR
Nearly 100 isolates of Lactobacillus were obtained from human and animal sources and one of these, L. helveticus strain LP27, was shown to produce a potent bacteriocin called lactocin 27, which was isolated from the culture supernatant fluid as a protein-lipopolysaccharide complex. Expand
INHIBITION OF PSEUDOMONAS SPECIES BY HYDROGEN PEROXIDE PRODUCING LACTOBACILLI1
TLDR
Inhibitor production paralleled H2O2 formation in Lactobacillus cultures, further indicating that the observed inhibition resulted from H2 O2 produced by lactobacilli. Expand
ANTIBACTERIAL ACTIVITY ASSOCIATED WITH LACTOBACILLUS ACIDOPHILUS
In earlier studies, evidence was obtained for the existence of antagonism in vivo between intestinal lactobacilli and certain of the enteric bacteria responsible for postirradiation infections in theExpand
Production and Mode of Action of Lactocin 27: Bacteriocin from a Homofermentative Lactobacillus
TLDR
Lactobacillus helveticus strain LP27 produced a bacteriocin, lactocin 27, in dialyzable and nondialyzable forms, which inhibited primarily protein synthesis without affecting deoxyribonucleic acid and ribon nucleic acid synthesis or adenosine 5′-triphosphate levels. Expand
Taxonomy of the Lactobacillus acidophilus Group
A total of 89 strains designated Lactobacillus acidophilus were examined for physiological properties, type of lactic acid produced, cell wall sugar pattern, guanine plus cytosine content ofExpand
Antagonistic Action of Lactobacillus acidophilus Toward Intestinal and Foodborne Pathogens in Associative Cultures 1.
Lactobacillus acidophilus exerted antagonistic actions on growth of Staphylococcus aureus , Salmonella typhimurium , enteropathogenic Escherichia coli , and Clostridium perfringens when grown withExpand
Effect of lactate on the growth and production of diacetyl and acetoin by lactobacilli
Abstract Diacetyl and acetoin production and cell growth in Lactobacillus acidophilus CNRZ 232, Lactobacillus casei ssp. rhamnosus ATCC 7469, Lactobacillus brevis ATCC 14869, and LactobacillusExpand
Chapter VII Methods for Studying Bacteriocins
TLDR
The methods worked out for colicin producers by Gratia, Fredericq, and their collaborators are simple and effective, and little need for their modification and improvement has arisen; other bacteriocins, differing from colicins in their physical and chemical properties, require more elaborate methods for their detection. Expand
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