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Microbial mat communities that inhabit hot springs in Yellowstone National Park have been studied for their biodiversity, energetics and evolutionary history, yet little is know about how these communities cope with nutrient limitation. In the present study the changes in

Microbial mat communities that inhabit hot springs in Yellowstone National Park have been studied for their biodiversity, energetics and evolutionary history, yet little is know about how these communities cope with nutrient limitation. In the present study the changes in assimilatory gene expression levels for nitrogen (nrgA), phosphorus (phoA), and iron (yusV) were measured under various nutrient enrichment experiments. While results for nrgA and phoA were inconclusive, results for yusV showed an increase in expression with the addition of N and Fe. This is the first data that shows the impact of nutrients on siderophore uptake regulation in hot spring microbes.
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    Title
    • How does nutrient limitation affect expression of assimilatory genes within a photosynthetic microbial mat community in Yellowstone National Park?
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    Date Created
    2012
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    • thesis
      Partial requirement for: M.S., Arizona State University, 2012
    • bibliography
      Includes bibliographical references (p. 22-25)
    • Field of study: Biology

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    by Michele Thorne

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