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The Relationship between Periplasmic Nitrate Reductase and the Length of Diauxic Lag in Denitrifying Bacteria Switching ...
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Permanent Link: http://ufdc.ufl.edu/UF00091523/00565
 Material Information
Title: The Relationship between Periplasmic Nitrate Reductase and the Length of Diauxic Lag in Denitrifying Bacteria Switching from Oxic to Anoxic Conditions
Series Title: Journal of Undergraduate Research
Physical Description: Serial
Language: English
Creator: Fischer, Kyle
Durvasula, Kiranmai
Svoronos, Spyros
Koopman, Ben
Publisher: University of Florida
Place of Publication: Gainesville, Fla.
Publication Date: 2008
 Notes
Abstract: The efficiency of biological denitrification processes in wastewater treatment is adversely affected by the length of diauxic lag when denitrifying bacteria are switched from oxic to anoxic conditions. Periplasmic nitrate reductase (Nap) is hypothesized to shorten diauxic lag. A Nap-containing bacterium and a Nap-deficient mutant of the same strain were grown and the lengths of their diauxic lags were compared to test this hypothesis. Nap-containing (wild type) Paracoccus pantotrophus displayed a significantly shorter diauxic lag than the Nap-deficient mutant bacteria. This result supports the hypothesis that the presence of Nap in bacteria decreases the length of diauxic lag. Enrichment of Nap-containing bacteria in wastewater treatment facilities could increase treatment rates by reducing diauxic lags.
 Record Information
Source Institution: University of Florida
Holding Location: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
System ID: UF00091523:00565

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