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 Experiment Videos

Interactions between heterotrophic plate count bacteria and coliform organisms.

M W LeChevallier, G A McFeters

    Applied and Environmental Microbiology
    |May 1, 1985
    PubMed
    Summary

    Heterotrophic plate count bacteria significantly reduce coliform bacteria levels, potentially through injury and competition for organic carbon. This interaction is crucial for understanding microbial dynamics in various environments.

    Related Concept Videos

    You might also read

    Related Articles

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

    Sort by
    Same author

    Nutritional relationships among microorganisms in an epilithic biofilm community.

    Microbial ecology·2013
    Same author

    Aeromonas sobria in chlorinated drinking water supplies.

    Microbial ecology·2013
    Same author

    Occurrence and activity of iron- and sulfur-oxidizing microorganisms in alkaline coal strip mine spoils.

    Microbial ecology·2013
    Same author

    Survival ofEscherichia coli andYersinia enterocolitica in stream water: Comparison of field and laboratory exposure.

    Microbial ecology·2013
    Same author

    Rapid direct methods for enumeration of specific, active bacteria in water and biofilms.

    Journal of applied microbiology·2010
    Same author

    Enteric virus infection risk from intrusion of sewage into a drinking water distribution network.

    Environmental science & technology·2010

    Area of Science:

    • Environmental microbiology
    • Water quality analysis
    • Bacteriology

    Background:

    • Coliforms are indicators of water contamination.
    • Interactions between different bacterial groups can influence water quality.
    • Understanding microbial competition is vital for environmental monitoring.

    Purpose of the Study:

    • To investigate the interactions between heterotrophic plate count (HPC) bacteria and coliform organisms.
    • To quantify the impact of HPC bacteria on coliform populations.
    • To identify potential mechanisms driving these interactions.

    Main Methods:

    • Spiked water samples were used to simulate environmental conditions.
    • Bacterial densities were monitored over an 8-day period.

    Related Experiment Videos

  • Statistical analysis was performed to determine correlations.

    • Main Results:

    • HPC bacteria reduced coliform densities by over 3 logs within 8 days.
    • Some HPC bacteria demonstrated the ability to injure coliforms.
    • A significant positive correlation was found between initial HPC levels and the rate of coliform decline (r = 0.66, P < 0.05).

    Conclusions:

    • HPC bacteria play a significant role in reducing coliform populations.
    • Competition for limited organic carbon is a likely mechanism for this reduction.
    • These findings have implications for water quality assessment and management.