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How does nutrient limitation affect expression of assimilatory genes within a photosynthetic microbial mat community in Yellowstone National Park?

abstract: 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. / Dissertation/Thesis / M.S. Biology 2012

Identiferoai:union.ndltd.org:asu.edu/item:15946
Date January 2012
ContributorsThorne, Michele (Author), Elser, James J (Advisor), Touchman, Jeffrey (Committee member), Stout, Valerie (Committee member), Arizona State University (Publisher)
Source SetsArizona State University
LanguageEnglish
Detected LanguageEnglish
TypeMasters Thesis
Format31 pages
Rightshttp://rightsstatements.org/vocab/InC/1.0/, All Rights Reserved

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