Seminars & Events

IGSB Seminar
""A PEAK INSIDE THE BLACK BOX: QUANTUM DOTS HIGHLIGHT UPTAKE OF ORGANIC NITROGEN BY MYCORRHIZAL FUNGI IN THE FIELD""

DATE: November 13, 2012
TIME: 10:30 AM - 11:30 AM
SPEAKER: Matthew D. Whiteside, Postdoctoral Research Fellow, University of British Columbia
LOCATION: Building 240/Conference Room 1405, Argonne National Laboratory
HOST: Sarah O\'Brien

Description:
The mechanisms that control carbon (C) and nitrogen (N) cycling between the atmosphere and the biosphere remain central themes in ecosystem ecology. Mycorrhizal fungi (root mutualists) can improve plant uptake of inorganic N in soil, but their capacity to acquire organic N remains less clear. We developed a new fluorescence technique (quantum dots) that can be used to quantify mycorrhizal uptake of organic N. Specifically, we observed quantum dot-labeled organic N within soil hyphae, plant roots and shoots using quantitative imaging techniques in both field and laboratory settings. This seminar will explore the use of quantum dot conjugates to address similar ecological based questions.

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