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Filtering by: Committee Member Loomis, W. D. Decade 1970-1979 Degree Field Botany Rights Statement Copyright Not Evaluated

The glutamine synthetases in soybean root nodules and free-living Rhizobium japonicum

Creator:

Guevara, Juan Garcia

Abstract:

Glutamine synthetase activity is present in both the cytosol and bacteroid fractions of soybean root nodules. Total activity measurements indicate that at least 90% of the activity in nodules is located in the cytosol. Results reported by McParland, et al. (29), showed that many properties of glutamine synthetase from nodule...

Resource Type:

Dissertation
Measurement of nitrogenase activity of intact legume symbionts in situ using the acetylene reduction assay

Creator:

Fishbeck, Kathleen Ann

Abstract:

The process of biological nitrogen fixation involves the enzymic reduction of atmospheric nitrogen (N₂) to ammonia (NH₃). The enzyme which catalyzes this reduction, nitrogenase, does not exhibit a high degree of substrate specificity. It also catalyzes the reduction of acetylene (C₂2H₂) to ethylene (C₂H₄). The reduction of C₂H₂ to C₂H₄...

Resource Type:

Masters Thesis
The biosynthesis and metabolism of (-)-kaurene in cell-free extracts of immature pea seeds

Creator:

Coolbaugh, Ronald Charles, 1944-

Abstract:

Procedures were developed for assaying the biosynthesis of (-)- kaurene-¹⁴C and other intermediates in gibberellin (GA) synthesis from mevalonic acid-¹⁴C in cell-free enzyme extracts of immature pea (Pisum sativum L. cv. Alaska) seeds. This system was utilized to investigate three aspects of GA biosynthesis: (1) apparent capacities for (-)-kaurene biosynthesis...

Resource Type:

Dissertation