Nitrogenase-catalyzed nitrogen fixation is a biochemically and genetically complex process requiring the participation of a number of different nif (nitrogen fixation) gene products. The nifF (electron transport), nifA (nif gene regulation) and nifE (FeMo-cofactor biosynthesis) genes from <i>Azotobacter vinelandii</i> were genetically analyzed. The nucleotide sequence of the nifF gene, which encodes a flavodoxin, was determined. Specific mutation strains indicated that in <i>A vinelandii</i> flavodoxin is not the unique physiological electron donor to nitrogenase. The nifF gene appears to be constitutively expressed but under nitrogen fixing conditions nifF gene expression is stimulated. / Master of Science
| Identifer | oai:union.ndltd.org:VTETD/oai:vtechworks.lib.vt.edu:10919/40938 |
| Date | 06 February 2013 |
| Creators | Bennett, Lisa Tracy |
| Contributors | Anaerobic Microbiology, Dean, Dennis R., Chen, Jiann-Shin, Larson, Timothy J., Johnson, John L., Sitz, Thomas O. |
| Publisher | Virginia Tech |
| Source Sets | Virginia Tech Theses and Dissertation |
| Language | English |
| Detected Language | English |
| Type | Thesis, Text |
| Format | ix, 142 leaves, BTD, application/pdf, application/pdf |
| Rights | In Copyright, http://rightsstatements.org/vocab/InC/1.0/ |
| Relation | OCLC# 21766921, LD5655.V855_1989.B466.pdf |
Page generated in 0.042 seconds