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

Hyperthermophilic Bacteria01:21

Hyperthermophilic Bacteria

736
Domain Bacteria includes some unique hyperthermophilic species. They exhibit remarkable adaptations that enable survival in extreme environments.Thermotoga species are rod-shaped, gram-negative, non-sporulating hyperthermophiles that form a sheath-like envelope called a toga. They ferment sugars or starch, producing lactate, acetate, CO₂, and H₂, and can also grow via anaerobic respiration using H₂ and ferric iron. Found in hot springs and hydrothermal vents, over 20% of their...
736
Methods to Assess Microbial Populations01:30

Methods to Assess Microbial Populations

57
Assessing microbial populations is crucial for understanding microbial roles in health, ecology, and industry. Various complementary techniques—both culture-based and molecular—enable detailed analysis of microbial abundance, diversity, and function.Viable Plate CountThe viable plate count is a traditional culture-based method used to estimate the number of living microbes in a sample. After serial dilution, the sample is spread onto nutrient agar plates. Each viable cell forms a...
57

You might also read

Related Articles

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

Sort by
Same author

Association between JAK2 mutations and thoracic aortic aneurysms in myeloproliferative neoplasms.

Journal of thrombosis and thrombolysis·2026
Same author

A Scalable and Cost-Effective In-Line Barcoding Strategy for Standardized 16S rRNA Gene Amplicon Sequencing: Performance Evaluation and Bias Assessment.

Molecular ecology resources·2026
Same author

Review of Bleeding as Initial Presentation in Patients with Chronic Myeloid Leukemia.

Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis·2026
Same author

Impact of cardiogenic shock on outcomes in patients with spontaneous coronary artery dissection: a systematic review and meta-analysis.

Panminerva medica·2026
Same author

Characteristics and outcomes of spontaneous coronary artery dissection versus Takotsubo Syndrome: a systematic review and meta-analysis.

Panminerva medica·2026
Same author

Utilizing L-arginine as an eco-friendly absorbent for hydrogen sulfide mitigation in produced water.

Scientific reports·2026

Related Experiment Video

Updated: Apr 1, 2026

Fluorescently Labeled Bacteria as a Tracer to Reveal Novel Pathways of Organic Carbon Flow in Aquatic Ecosystems
09:35

Fluorescently Labeled Bacteria as a Tracer to Reveal Novel Pathways of Organic Carbon Flow in Aquatic Ecosystems

Published on: September 13, 2019

7.5K

Characterizing Aquifer Heterogeneity Using Bacterial and Bacteriophage Tracers.

Raymond M Flynn, German Mallèn, Marion Engel

    Journal of Environmental Quality
    |October 6, 2015
    PubMed
    Summary

    Artificial tracer tests in gravel aquifers reveal how microorganism size and aquifer geochemistry affect contaminant removal. Understanding these factors is crucial for protecting vital groundwater resources from contamination.

    More Related Videos

    Monitoring Spatial Segregation in Surface Colonizing Microbial Populations
    07:40

    Monitoring Spatial Segregation in Surface Colonizing Microbial Populations

    Published on: October 29, 2016

    11.7K
    Isolation and Identification of Waterborne Antibiotic-Resistant Bacteria and Molecular Characterization of their Antibiotic Resistance Genes
    08:58

    Isolation and Identification of Waterborne Antibiotic-Resistant Bacteria and Molecular Characterization of their Antibiotic Resistance Genes

    Published on: March 3, 2023

    8.4K

    Related Experiment Videos

    Last Updated: Apr 1, 2026

    Fluorescently Labeled Bacteria as a Tracer to Reveal Novel Pathways of Organic Carbon Flow in Aquatic Ecosystems
    09:35

    Fluorescently Labeled Bacteria as a Tracer to Reveal Novel Pathways of Organic Carbon Flow in Aquatic Ecosystems

    Published on: September 13, 2019

    7.5K
    Monitoring Spatial Segregation in Surface Colonizing Microbial Populations
    07:40

    Monitoring Spatial Segregation in Surface Colonizing Microbial Populations

    Published on: October 29, 2016

    11.7K
    Isolation and Identification of Waterborne Antibiotic-Resistant Bacteria and Molecular Characterization of their Antibiotic Resistance Genes
    08:58

    Isolation and Identification of Waterborne Antibiotic-Resistant Bacteria and Molecular Characterization of their Antibiotic Resistance Genes

    Published on: March 3, 2023

    8.4K

    Area of Science:

    • Hydrogeology
    • Environmental Microbiology

    Background:

    • Gravel aquifers are key potable water sources in Europe but face contamination risks.
    • Heterogeneity in these aquifers complicates protection zone delineation.
    • Artificial tracer testing is essential for characterizing groundwater systems.

    Purpose of the Study:

    • To investigate the removal of microbiological contaminants in a calcareous gravel aquifer.
    • To compare the transport and removal of different types of artificial tracers.
    • To understand how aquifer heterogeneity influences contaminant transport.

    Main Methods:

    • Comparative passive gradient testing using fluorescent solute (Uranine), a virus (H40/1 bacteriophage), and bacterial tracers.
    • Analysis of tracer recoveries at monitoring wells at varying distances from an injection well.
    • Application of filtration theory to assess microorganism attenuation.

    Main Results:

    • Tracer recoveries varied significantly between wells and tracer types.
    • H40/1 bacteriophage showed greater attenuation than similarly charged bacterial tracers, attributed to size differences.
    • Geochemical heterogeneity influenced the attenuation rates of positively charged bacterial tracers.

    Conclusions:

    • Reconciling outcrop observations with tracer test data is vital for aquifer characterization.
    • Microbiological tracers with defined properties aid in understanding aquifer heterogeneity.
    • Aquifer heterogeneity, including open framework gravel beds and localized geochemical variations, significantly impacts contaminant transport.