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Full-Text Articles in Microbial Physiology
Hypercholesterolemia And Platelet Sensitivity To Thromb In-Induced Aggregation In Whole Blood, Charles E. Hammond Ii
Hypercholesterolemia And Platelet Sensitivity To Thromb In-Induced Aggregation In Whole Blood, Charles E. Hammond Ii
Morehead State Theses and Dissertations
A thesis presented to the faculty of the College of Arts and Sciences at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Sciences in Biology by Charles E. Hammond, II on August 1, 1989.
Protoporphyrinogen Oxidation, A Step In Heme Synthesis In Soybean Root Nodules And Free-Living Rhizobia., Nicholas J. Jacobs, Susan E. Borotz, Mary Lou Guerinot
Protoporphyrinogen Oxidation, A Step In Heme Synthesis In Soybean Root Nodules And Free-Living Rhizobia., Nicholas J. Jacobs, Susan E. Borotz, Mary Lou Guerinot
Dartmouth Scholarship
Extracts of the crude bacteroid fraction of symbiotically grown Bradyrhizobium japonicum were much more active in oxidizing protoporphyrinogen to protoporphyrin than were extracts of cells grown under free-living conditions, especially when assayed in atmospheres containing only traces of oxygen. This correlates with the higher heme content of the microaerophilic nodules. Furthermore, the high level of oxidative activity in the crude bacteroid fraction was associated with an uncharacterized membrane fraction, probably of plant origin, that was separable from the bacteroids by Percoll gradient centrifugation.