Related Experiment Video

Updated: Jul 20, 2026

A Method to Assess Bacteriocin Effects on the Gut Microbiota of Mice
07:54

A Method to Assess Bacteriocin Effects on the Gut Microbiota of Mice

Published on: July 25, 2017

Evidence on correlation between number of disulfide bridge and toxicity of class IIa bacteriocins

Christelle Richard1, Raquel Cañon, Karim Naghmouchi

  • 1Laboratoire de Microbiologie Alimentaire et Industrielle, ENITIAA, rue de la Geraudiere, 82225 44332 Nantes, France.

Food Microbiology
|September 1, 2006
PubMed

More Related Videos

Using the Overlay Assay to Qualitatively Measure Bacterial Production of and Sensitivity to Pneumococcal Bacteriocins06:05

Using the Overlay Assay to Qualitatively Measure Bacterial Production of and Sensitivity to Pneumococcal Bacteriocins

Published on: September 30, 2014

Use of the Soft-agar Overlay Technique to Screen for Bacterially Produced Inhibitory Compounds06:38

Use of the Soft-agar Overlay Technique to Screen for Bacterially Produced Inhibitory Compounds

Published on: January 14, 2017

Related Concept Videos

Clinical Significance of Antibiotic Resistance01:25

Clinical Significance of Antibiotic Resistance

Methicillin-resistant Staphylococcus aureus (MRSA) presents a critical public health threat, arising from its capacity to resist β-lactam antibiotics due to acquisition of the mecA gene within the staphylococcal cassette chromosome mec (SCCmec). This gene encodes penicillin-binding protein 2a (PBP2a), which impairs binding efficacy of methicillin and other β-lactams. MRSA has evolved into distinct clonal lineages impacting humans and animals alike, reinforcing its significance within the One...
Gene Regulation in Microbial Communities: Quorum Sensing01:28

Gene Regulation in Microbial Communities: Quorum Sensing

Quorum sensing is a mechanism of bacterial communication that enables coordinated gene expression in response to changes in population density. This facilitates collective behaviors that enhance survival, resource acquisition, and ecological adaptation. This process relies on small signaling molecules called autoinducers that accumulate as bacterial populations grow. When a critical threshold concentration of autoinducers is reached, bacterial cells collectively modify gene expression,...
Inhibitors of Bacterial DNA Synthesis01:28

Inhibitors of Bacterial DNA Synthesis

Bacterial pathogens depend on precise and efficient DNA replication to sustain infection. Two type II topoisomerases—DNA gyrase and topoisomerase IV—are critical to this process, as they resolve DNA supercoiling and unlink chromosomes during replication. Fluoroquinolones, synthetic derivatives of quinolones, exploit this mechanism by stabilizing the transient DNA–enzyme cleavage complex, preventing strand religation, and causing lethal double-strand breaks. These antibiotics are selectively...