Related Experiment Video
Updated: Oct 31, 2025

09:39
A Platform of Anti-biofilm Assays Suited to the Exploration of Natural Compound Libraries
Published on: December 27, 2016
18.1K
Understanding the Complex Phage-Host Interactions in Biofilm Communities.
Diana P Pires1, Luís D R Melo1, Joana Azeredo1
1Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal;
Annual Review of Virology
|June 29, 2021
Summary
Bacteriophages (phages) and bacterial biofilms interact in complex ways, sometimes strengthening biofilms. This review explores these interactions and phage applications for biofilm control.
Area of Science:
- Microbiology
- Molecular Biology
- Ecology
Background:
- Bacteriophages (phages) and bacterial biofilms are ubiquitous in nature.
- Phage-host interactions within biofilms are complex, extending beyond predation to symbiotic relationships that can enhance biofilm structure.
- Understanding these interactions is crucial due to their ecological and biotechnological implications.
Purpose of the Study:
- To review the key factors influencing phage-biofilm interactions.
- To outline current methodologies for studying these interactions.
- To discuss the potential applications of phages in controlling biofilms across various settings.
Main Methods:
- Literature review of scientific publications on phage-biofilm interactions.
- Analysis of studies detailing phage-host dynamics in biofilm environments.
- Compilation of research on phage-based biofilm control strategies.
Main Results:
- Phage-biofilm interactions are multifaceted, involving predation, symbiosis, and modulation of biofilm properties.
- Diverse methods exist for studying these interactions, including microscopy, genetic analysis, and high-throughput screening.
- Phages show promise as agents for controlling biofilms in medical, industrial, and environmental contexts.
Conclusions:
- Phage-biofilm interactions are a dynamic interplay with significant ecological roles.
- Advanced techniques are improving our understanding of these complex relationships.
- Phage therapy represents a viable and eco-friendly approach for managing problematic biofilms.
Related Concept Videos
Biofilms
544
Biofilms are complex communities of microorganisms encased in a self-produced extracellular polysaccharide matrix attached to surfaces. These microbial consortia can include single or multiple species, providing enhanced survival benefits by forming organized, multilayered structures.The formation of biofilms occurs through four key stages: attachment, colonization, development, and dispersal.During attachment, free-swimming planktonic cells adhere to a surface, often facilitated by...
544
DNA Bacteriophages
333
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...
333
Lytic Cycle of Bacteriophages
73.7K
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...
73.7K
Lysogenic Cycle of Bacteriophages
64.6K
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...
64.6K
Viral Replication: Lytic Cycle
585
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...
585
Viral Replication: Lysogenic Cycle
563
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...
563

