Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

DNA Bacteriophages01:26

DNA Bacteriophages

Bacteriophages, or phages, are viruses that specifically infect bacteria, utilizing their genetic material to hijack host cellular machinery for replication. DNA bacteriophages employ single-stranded DNA (ssDNA) or double-stranded DNA (dsDNA) genomes. These phages exhibit diverse replication strategies and host interactions, influencing their ecological roles and applications in biotechnology and medicine.ssDNA BacteriophagesssDNA phages, with their small genomes, utilize unique strategies to...
Lytic Cycle of Bacteriophages01:30

Lytic Cycle of Bacteriophages

Bacteriophages, also known as phages, are specialized viruses that infect bacteria. A key characteristic of phages is their distinctive “head-tail” morphology. A phage begins the infection process (i.e., lytic cycle) by attaching to the outside of a bacterial cell. Attachment is accomplished via proteins in the phage tail that bind to specific receptor proteins on the outer surface of the bacterium. The tail injects the phage’s DNA genome into the bacterial cytoplasm. In the lytic replication...
Lysogenic Cycle of Bacteriophages00:43

Lysogenic Cycle of Bacteriophages

In contrast to the lytic cycle, phages infecting bacteria via the lysogenic cycle do not immediately kill their host cell. Instead, they combine their genome with the host genome, allowing the bacteria to replicate the phage DNA along with the bacterial genome. The incorporated copy of the phage genome is called the prophage. Some prophages can re-activate and enter the lytic cycle. This often occurs in response to a perturbation, such as DNA damage, but can also transpire in the absence of...
Viral Replication: Lytic Cycle01:20

Viral Replication: Lytic Cycle

Bacteriophages, or phages, are viruses that specifically infect bacteria. Among them, T-even bacteriophages, such as T4, exhibit a well-characterized lytic replication cycle in Escherichia coli (E. coli). This process ensures the rapid proliferation of the virus while ultimately leading to the destruction of the bacterial host.Attachment and DNA InjectionThe infection process begins with the recognition and binding of the T4 phage to the E. coli cell surface. Tail fibers of the phage...
Viral Replication: Lysogenic Cycle01:16

Viral Replication: Lysogenic Cycle

The lysogenic cycle is a crucial viral replication strategy that allows bacteriophages to persist within host cells without immediately destroying them. This process is primarily observed in temperate phages, such as bacteriophage lambda (λ), which infects Escherichia coli. The cycle allows the viral genome to persist across bacterial generations while keeping host cells viable.Integration of the Viral GenomeUpon infection, bacteriophage lambda attaches to the bacterial surface and injects its...
Bacteriophages of the Human Virome01:23

Bacteriophages of the Human Virome

Bacteriophages are found throughout the human body. They may even outnumber eukaryotic viruses, forming an important and dynamic component of the human virome. Indeed, phages represent the most abundant viral entities, with densities in the gut reaching up to 10⁹ particles per gram of fecal matter, and many belonging to orders such as Caudovirales and Microviridae, while a substantial proportion remains unclassified as viral “dark matter.”Lysogeny and Genetic ExchangeIn the gut, bacteriophages...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Prolific S-layer shedding and associated proteins from the methanotroph <i>Methylomicrobium album</i> BG8.

Applied and environmental microbiology·2026
Same author

Methanotroph-embedded hydrogels as platforms for methane removal.

Current opinion in biotechnology·2026
Same author

Six Weeks of Baker's Yeast β-Glucan Supplementation Reveals Unique Immune Maturation mRNA Signature: Implications for Immunity?

International journal of molecular sciences·2026
Same author

Transcriptomic shift in ethanol and amino acid metabolic genes regulated by Med15 during alcoholic fermentation.

bioRxiv : the preprint server for biology·2026
Same author

Diverse bacteriohemerythrin genes of <i>Methylomonas denitrificans</i> FJG1 provide insight into the survival and activity of methanotrophs in low oxygen ecosystems.

mBio·2025
Same author

Standardizing image acquisition and processing methods: a critical need for the accurate assessment of retinal blood vessel tortuosity.

Biomedical optics express·2025
Same journal

Redox-centric metabolic rewiring for dark-fermentative hydrogen production in Enterobacter aerogenes.

Bioprocess and biosystems engineering·2026
Same journal

Improving trehalose production through the design and optimization of linker peptides in scaffold protein.

Bioprocess and biosystems engineering·2026
Same journal

Elicitors derived from endophytic fungus Acremonium sp. enhance triterpenoid and polysaccharide production in the submerged cultivation of the medicinal mushroom Inonotus obliquus.

Bioprocess and biosystems engineering·2026
Same journal

Comparison of three inoculum sources for acetate production and microbial succession in H<sub>2</sub>/CO<sub>2</sub>-fed anaerobic system.

Bioprocess and biosystems engineering·2026
Same journal

Integrated cellulase continuous production and downstream processing using a packed-bed bioreactor for solid-state fermentation by thermophilic fungus.

Bioprocess and biosystems engineering·2026
Same journal

Eco-friendly synthesis of ZnO nanostructures from yeast strains isolated from kombucha and beetroot kwass for antimicrobial thin film applications.

Bioprocess and biosystems engineering·2026
See all related articles

Related Experiment Video

Updated: Jun 17, 2026

Quantitative PCR of T7 Bacteriophage from Biopanning
05:42

Quantitative PCR of T7 Bacteriophage from Biopanning

Published on: September 27, 2018

Bacteriophage adsorption efficiency and its effect on amplification.

Zachary J Storms1, Eric Arsenault, Dominic Sauvageau

  • 1Department of Chemical Engineering, McGill University, Montreal, QC H3A 2B2, Canada.

Bioprocess and Biosystems Engineering
|January 13, 2010
PubMed
Summary
This summary is machine-generated.

This study introduces adsorption efficiency to bacteriophage adsorption models, revealing it

More Related Videos

An Adapted Optical Density-Based Microplate Assay for Characterizing Actinobacteriophage Infection
03:33

An Adapted Optical Density-Based Microplate Assay for Characterizing Actinobacteriophage Infection

Published on: June 30, 2023

Bacteriophage Effectiveness for Biocontrol of Foodborne Pathogens Evaluated via High-Throughput Settings
07:22

Bacteriophage Effectiveness for Biocontrol of Foodborne Pathogens Evaluated via High-Throughput Settings

Published on: August 19, 2021

Related Experiment Videos

Last Updated: Jun 17, 2026

Quantitative PCR of T7 Bacteriophage from Biopanning
05:42

Quantitative PCR of T7 Bacteriophage from Biopanning

Published on: September 27, 2018

An Adapted Optical Density-Based Microplate Assay for Characterizing Actinobacteriophage Infection
03:33

An Adapted Optical Density-Based Microplate Assay for Characterizing Actinobacteriophage Infection

Published on: June 30, 2023

Bacteriophage Effectiveness for Biocontrol of Foodborne Pathogens Evaluated via High-Throughput Settings
07:22

Bacteriophage Effectiveness for Biocontrol of Foodborne Pathogens Evaluated via High-Throughput Settings

Published on: August 19, 2021

Area of Science:

  • Microbiology
  • Molecular Biology
  • Biophysics

Background:

  • Bacteriophage adsorption is critical for phage therapy and research.
  • Existing models lack a comprehensive understanding of adsorption efficiency.
  • T4-Escherichia coli system is a model for studying phage-host interactions.

Purpose of the Study:

  • To modify existing bacteriophage adsorption models by incorporating adsorption efficiency.
  • To investigate the impact of adsorption kinetics on bacteriophage amplification.
  • To optimize adsorption efficiency for enhanced phage production.

Main Methods:

  • Modified existing bacteriophage adsorption models with an adsorption efficiency term.
  • Modeled adsorption kinetics using adsorption rate constant (k) and efficiency (epsilon).
  • Investigated the effect of L-tryptophan concentration on adsorption efficiency.

Main Results:

  • Adsorption rate constant is host-dependent; adsorption efficiency is phage-dependent.
  • Adsorption efficiency significantly depends on L-tryptophan concentration.
  • Increased adsorption efficiency reduced phage production, similar to increased multiplicity of infection.

Conclusions:

  • Adsorption efficiency is a key parameter influencing bacteriophage adsorption and amplification.
  • L-tryptophan concentration can be manipulated to optimize adsorption efficiency.
  • Optimizing adsorption efficiency via L-tryptophan yielded a 14-fold increase in phage production.