Icon for: Jennifer Wisecaver


University of Arizona
Years in Grad School: 5
Judges’ Queries and Presenter’s Replies
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Presentation Discussion
  • Icon for: Teresa Wang

    Teresa Wang

    Graduate Student
    May 21, 2012 | 09:11 p.m.

    I love the focus of your research! The content of your video and poster have the kind of spark that is needed to get the general public interested in the biology of horizontal gene transfer. Really great.

  • Icon for: Jennifer Wisecaver

    Jennifer Wisecaver

    Lead Presenter
    May 24, 2012 | 10:51 a.m.

    Thanks Teresa!

  • Icon for: Geoffrey Benn

    Geoffrey Benn

    Graduate Student
    May 24, 2012 | 12:23 a.m.

    Interesting video. I was wondering if Dinophysis preferentially accumulates only chloroplasts from its prey, or are mitochondria and other organelles also accumulated? If not, how does Dinophysis selectively degrade the non-plastid prey organelles?

  • Icon for: Jennifer Wisecaver

    Jennifer Wisecaver

    Lead Presenter
    May 24, 2012 | 10:50 a.m.

    Hi Geoff,

    Great question! Dinophysis feeds by extracting the cell contents of its prey through a straw-like appendage called the peduncle. The prey contents are stored in food vacuoles and are degraded over time. Through a process that is poorly understood, the prey chloroplasts are compartmentalized and retained while everything else is absorbed. Researchers only recently figured out how to culture Dinophysis in the lab (2006), so there has been relatively little microscopy work done on this species. Stay tuned though, I imagine we’ll know a lot more about Dinophysis in the next few years.


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