• Login
    View Item 
    •   SMARTech Home
    • Undergraduate Research Opportunities Program (UROP)
    • Undergraduate Research Option Theses
    • View Item
    •   SMARTech Home
    • Undergraduate Research Opportunities Program (UROP)
    • Undergraduate Research Option Theses
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Characterization and isolation of a rotifer-deterrent compound in the red tide dinoflagellate Karenia brevis

    Thumbnail
    View/Open
    Pirkle_Christen_S_200612_ro.pdf (139.2Kb)
    Date
    2006-12
    Author
    Pirkle, Christen
    Metadata
    Show full item record
    Abstract
    Spontaneous phytoplankton blooms cause extensive damage to aquatic ecosystems all over the world. Red Tide, a type of bloom, causes extensive damage in the Gulf of Mexico every year. Red tide is caused by Karenia brevis, a type of phytoplankton known to be especially hazardous because of the harmful toxins it secretes into its environment. Although this phytoplankton species, like many others, can cause extensive environmental damage, little is known about its eco-system dynamics. Studying the relationships between phytoplankton and their consumers will help to better understand the mechanisms of bloom formation. For instance, previous research has demonstrated that Karenia brevis deters feeding for a potential grazer, the rotifer Brachionus plicatilis. Further research showed that a cellular component may be responsible for defending K. brevis against grazers. Using bioassay- guided fractionation techniques, we have attempted to isolate and characterize the chemical responsible for this deterrence. Liquid partition yielded a deterrent, lipophilic fraction . Size- exclusion chromatography also generated an active fraction, by separating compounds by molecular size. By characterizing this unknown compound, we hope to learn more about the interactions between phytoplankton and their consumers.
    URI
    http://hdl.handle.net/1853/20268
    Collections
    • School of Biology Undergraduate Research Option Theses [146]
    • Undergraduate Research Option Theses [862]

    Browse

    All of SMARTechCommunities & CollectionsDatesAuthorsTitlesSubjectsTypesThis CollectionDatesAuthorsTitlesSubjectsTypes

    My SMARTech

    Login

    Statistics

    View Usage StatisticsView Google Analytics Statistics
    facebook instagram twitter youtube
    • My Account
    • Contact us
    • Directory
    • Campus Map
    • Support/Give
    • Library Accessibility
      • About SMARTech
      • SMARTech Terms of Use
    Georgia Tech Library266 4th Street NW, Atlanta, GA 30332
    404.894.4500
    • Emergency Information
    • Legal and Privacy Information
    • Human Trafficking Notice
    • Accessibility
    • Accountability
    • Accreditation
    • Employment
    © 2020 Georgia Institute of Technology