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Related Concept Videos

Modern Molecular Taxonomy01:29

Modern Molecular Taxonomy

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Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...
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Applications of Molecular Taxonomy01:20

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Molecular taxonomy has revolutionized the understanding and classification of bacteria, providing precise insights into their diversity, evolutionary relationships, and ecological roles. By utilizing molecular techniques such as DNA sequencing and fingerprinting, researchers have made significant strides in various fields related to bacterial studies.Resolving Taxonomic AmbiguitiesMolecular taxonomy has been instrumental in distinguishing closely related bacterial species initially thought to...
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Methods of Classification and Identification01:28

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Bacterial identification relies on a diverse array of techniques to classify and understand microorganisms, each tailored to uncover specific characteristics. Traditional morphological approaches, while still valuable, are limited for closely related or structurally simple organisms. Modern methods integrate biochemical, serological, genetic, and advanced molecular tools to achieve greater accuracy.Morphological and Biochemical TechniquesMorphological characteristics, such as cell shape and...
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Microbial Growth Measurement: Indirect Methods01:27

Microbial Growth Measurement: Indirect Methods

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Estimating microbial growth is essential for understanding population dynamics and environmental adaptations. Indirect methods provide valuable insights by measuring parameters such as turbidity, metabolic activity, and biomass, enabling efficient and reproducible assessments.During exponential growth, microbial cells scatter light proportionally to their biomass, a principle used in turbidity measurements. About one million cells per milliliter produce detectable scattering, which a...
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Microbial Growth Measurement: Direct Methods01:23

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Direct methods for measuring microbial populations in a culture are essential tools in microbiology, providing quantitative data for various applications. Among these, microscopic counts, plate counts, and serial dilution are widely used techniques, each with unique principles and applications.Microscopic CountsMicroscopic counting involves the use of a Petroff-Hausser chamber, a specialized microscope slide with a grid and defined depth. By observing a liquid culture under a microscope,...
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Molecular Diagnostic Tools Applied for Assessing Microbial Water Quality.

Lisa Paruch1

  • 1Division of Environment and Natural Resources, Norwegian Institute of Bioeconomy Research-NIBIO Oluf Thesens vei 43, 1433 Aas, Norway.

International Journal of Environmental Research and Public Health
|May 14, 2022
PubMed
Summary

Prompt detection of microbial contamination in water is crucial for public health. Molecular diagnostics like qPCR and DNA sequencing offer rapid and robust methods for assessing water quality and preventing outbreaks.

Keywords:
DNA microarrayantibiotic-resistance genes (ARGs)digital droplet PCR (ddPCR)end-point polymerase chain reaction (PCR)high-throughput next-generation DNA sequencing (HT-NGS)loop-mediated isothermal amplification (LAMP)microbial water qualitymultiplex qPCR (mqPCR)real-time quantitative PCR (qPCR)waterborne pathogens

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Area of Science:

  • Environmental microbiology
  • Molecular diagnostics
  • Public health

Background:

  • Microbial water quality is critical for human, animal, and environmental health.
  • Pathogen-contaminated water causes serious health issues and economic losses.
  • Early detection of microbial contamination is essential for timely interventions.

Purpose of the Study:

  • To provide an overview of molecular diagnostic tools for microbial water quality assessment.
  • To highlight advancements in molecular methods for detecting waterborne pathogens and antibiotic-resistance genes (ARGs).
  • To discuss future perspectives on the application of these technologies.

Main Methods:

  • Review of molecular diagnostic techniques including PCR, DNA microarray, qPCR, mqPCR, LAMP, ddPCR, and HT-NGS.
  • Focus on methods for rapid and robust assessment of microbial water quality.
  • Analysis of technological advancements in molecular diagnostics.

Main Results:

  • Molecular methods offer rapid and robust assessment of microbial water quality.
  • Various techniques like qPCR and HT-NGS facilitate the surveillance of microbial pollutants.
  • These tools are crucial for detecting waterborne pathogens and ARGs.

Conclusions:

  • Molecular diagnostics are increasingly vital for monitoring microbial water quality.
  • Advancements in molecular tools enhance the ability to detect and manage water contamination risks.
  • Continued development of these technologies will improve water safety and public health outcomes.