• Login
    View Item 
    •   Home
    • University Colleges
    • SUNY Brockport
    • Theses
    • Biology Master’s Theses
    • View Item
    •   Home
    • University Colleges
    • SUNY Brockport
    • Theses
    • Biology Master’s Theses
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of SUNY Open Access RepositoryCommunitiesPublication DateAuthorsTitlesSubjectsDepartmentThis CollectionPublication DateAuthorsTitlesSubjectsDepartmentAuthor ProfilesView

    My Account

    LoginRegister

    Campus Communities in SOAR

    Alfred State CollegeBrockportBroomeCantonDownstateEmpireFredoniaMaritimeNew PaltzOneontaOptometryOswegoPlattsburghSUNY Polytechnic InstituteSUNY Office of Community Colleges and the Education PipelineSUNY PressUpstate Medical

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Kepone Toxicity to Estuarine Microorganisms

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    bio_theses/45/fulltext (1).pdf
    Size:
    883.9Kb
    Format:
    PDF
    Download
    Average rating
     
       votes
    Cast your vote
    You can rate an item by clicking the amount of stars they wish to award to this item. When enough users have cast their vote on this item, the average rating will also be shown.
    Star rating
     
    Your vote was cast
    Thank you for your feedback
    Author
    Mahaffey, William Richard
    Keyword
    Ecological Factors
    Synthetic Insecticide
    Environmental Toxicity
    Disc Agar Diffusion
    Kepone
    Cellular Inhibition
    Date Published
    1981-06-01
    
    Metadata
    Show full item record
    URI
    http://hdl.handle.net/20.500.12648/4516
    Abstract
    Synthesized chemical agents can have an unseen, and yet profound, impact on the environment in which it is used. This study investigates the effects of the insecticide Kepone (99% pure) on estuarine microbial populations and seeks to determine the mode of toxicity to pure culture isolates obtained therein. The researcher used disc agar diffusion sensitivity, plate counts, and oxygen uptake methods to collect data over a period of four months to determine the toxicity of Kepone to a variety of laboratory pure cultures of bacteria and fungi. Of the 30 isolates tested, 33% were inhibited at 3.65 ?g/disc concentration and 47% were inhibited at the 14.6 ?g/disc concentration. Higher concentrations (20 ?g/disc) inhibited all isolates. Of the 30 isolates, seven were particularly sensitive to Kepone, with four indicating inhibition at the 1.46 ?g/disc concentration. The researcher then examined the toxicity of Kepone to natural mixed populations of bacteria from a variety of marine habitats by performing standard total viable counts using Zobell’s seawater agar (Z-15) containing dissolved Kepone. The researcher observed that Kepone as low as 20 ?g/l has an inhibitory effect on the development of colonies on an agar plate, though the populations’ sensitivities were variable. In many cases, it was clear that concentrations below 20 ?g/l were inhibitory. Seventeen Kepone-resistant colony forming units were selected for further study, however, examination of cell type and enzymatic activities showed significant correlation only with the amylolytic and lipolytic activities, and the gram stain. The researcher observed that organisms grown under anaerobic conditions exhibited decreased sensitivity to Kepone, however, significant reductions in colony forming units were observed under aerobic conditions. The researcher concludes that Kepone is toxic to microorganisms even in low concentrations.
    Description
    Repository staff provided abstract to aid in discovery.
    Collections
    Biology Master’s Theses

    entitlement

     

    DSpace software (copyright © 2002 - 2023)  DuraSpace
    Quick Guide | Contact Us
    Open Repository is a service operated by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.