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Related Concept Videos

Biofilms01:29

Biofilms

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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...
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Microbial communities forming biofilms and mats represent complex, spatially structured ecosystems where metabolic processes are stratified according to light, oxygen, and nutrient gradients. Biofilms are initial colonization stages, only a few millimeters thick, while mature microbial mats can reach centimeter-scale thickness and display intricate vertical organization. Their structural and functional heterogeneity allows microorganisms to occupy distinct ecological niches within a few...
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Coryneform bacteria are gram-positive, aerobic, nonmotile rods that exhibit irregular, club-shaped, or V-shaped arrangements. Their V-shape results from snapping division, where the inner cell wall layer forms the cross-wall, while the outer layer remains intact until it ruptures on one side, causing the daughter cells to bend away.The primary genera are Corynebacterium and Arthrobacter. Corynebacterium includes diverse species, ranging from saprophytes to pathogens like Corynebacterium...
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Author Spotlight: Advancing Mycobacterial Biofilm Protocols for Enhanced Bacterial Metabolism Research
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Author Spotlight: Advancing Mycobacterial Biofilm Protocols for Enhanced Bacterial Metabolism Research

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Mycobacterial Biofilms.

Jacobs P Richards1, Anil K Ojha1

  • 1Department of Infectious Diseases and Microbiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA 15261.

Microbiology Spectrum
|June 25, 2015
PubMed
Summary
This summary is machine-generated.

Mycobacteria form antibiotic-tolerant biofilms through dedicated genetic pathways. This review explores recent advances in understanding these mycobacterial biofilms and their link to persistent infections.

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Area of Science:

  • Microbiology
  • Bacterial Pathogenesis
  • Biofilm Formation

Background:

  • Bacteria naturally form biofilms, which are matrix-encapsulated, multicellular communities.
  • Biofilm formation involves genetically programmed stages and intercellular communication.
  • Bacteria in biofilms exhibit unique phenotypes, including enhanced tolerance to antibiotics and environmental stresses.

Purpose of the Study:

  • To review recent advances in understanding mycobacterial biofilms formed in vitro.
  • To explore the potential link between mycobacterial biofilm lifestyles and persistent infections.
  • To discuss the implications for host-defense mechanisms and antibiotic tolerance.

Main Methods:

  • Review of current scientific literature on mycobacterial biofilms.
  • Analysis of genetic pathways involved in biofilm development.
  • Examination of phenotypic characteristics of mycobacteria in biofilm communities.

Main Results:

  • Mycobacteria form complex multicellular structures in vitro via dedicated genetic pathways.
  • These mycobacterial biofilms exhibit significant tolerance to antibiotics.
  • Biofilm formation contributes to the persistence of mycobacterial infections.

Conclusions:

  • Understanding mycobacterial biofilms is crucial for combating persistent infections.
  • Biofilm formation confers antibiotic tolerance, complicating treatment strategies.
  • Further research into mycobacterial biofilm development can inform novel therapeutic approaches.