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    Dependence of fertilization in sea urchins, Stronglyocentrotus purpuratus, on microfilament formation and internal calcium concentration

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    Verge_3_Lundeberg.pdf (125.7Kb)
    Links to Files
    http://blogs.goucher.edu/verge/verge3/
    Permanent Link
    http://hdl.handle.net/11603/2449
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    • Goucher College - Verge: the goucher journal of undergraduate writing
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    Author/Creator
    Lundeberg, Megan
    Ruggerio, Amy
    Isaacson, Amy
    Date
    2006
    Type of Work
    21 p.
    Text
    journal articles
    research articles
    Department
    Biological Sciences
    Program
    Bachelor's Degree
    Rights
    Collection may be protected under Title 17 of the U.S. Copyright Law. To obtain information or permission to publish or reproduce, please contact the Goucher Special Collections & Archives at 410-337-6347 or email archives@goucher.edu.
    Subjects
    Research -- Periodicals.
    Humanities -- Research -- Periodicals.
    Social sciences -- Research -- Periodicals.
    Abstract
    Fertilization in sea urchins, Strongylocentrotus purpuratus, is the result of a series of interactions between the egg and sperm. Microfilament formation has been implicated in both the acrosomal process formation and the entry of the sperm into the egg. Changes in internal calcium concentrations have been linked to exocytosis reactions that occur in both the egg and the sperm. Therefore, the dependence of fertilization on microfilament generation and changes in internal calcium concentration were determined by examining the effects of cytochalasin and calcium ionophore A23187 on sea urchin fertilization. These experiments demonstrated the dependence of the fertilization process on microfilament generation and the changes in internal calcium concentration; the inhibition of fertilization by cytochalasin confirmed the anticipated dependence on microfilament generation, while the ability of calcium ionophore A23187 to induce fertilization membrane formation, by increased permeability to calcium, confirmed the importance of calcium as a signaling mechanism for exocytosis.


    Goucher College
    1021 Dulaney Valley Road
    Baltimore, MD 21204

    www.goucher.edu

    Contact Information:
    kristen.welzenbach@goucher.edu
    library.goucher.edu/md-soar


    If you wish to submit a copyright complaint or withdrawal request, please email mdsoar-help@umd.edu.

     

     

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    Goucher College
    1021 Dulaney Valley Road
    Baltimore, MD 21204

    www.goucher.edu

    Contact Information:
    kristen.welzenbach@goucher.edu
    library.goucher.edu/md-soar


    If you wish to submit a copyright complaint or withdrawal request, please email mdsoar-help@umd.edu.