Document Type

Thesis - Open Access

Award Date

1975

Degree Name

Master of Science (MS)

Department

Biology and Microbiology

Abstract

This is a study of the symbiotic and non-symbiotic nitrogen fixing organisms on Antelope Range Station. Symbiotic nitrogen fixation is carried out by the native leguminous plants and the bacterial genus Rhizobium. This bacterium causes nodules to form on leguminous plants, and this symbiotic relationship is capable of utilizing gaseous nitrogen as a nitrogen source. Some experimentation was also done on a lichen found throughout the area studies. While speciation was not attempted, the lichen specimens were morphologically similar. These lichens also represented a symbiotic relationship, but in this case a nitrogen fixing blue-green algae formed a thallus with a fungal component. No other symbiotic nitrogen fixing associations were observed at Antelope Range Station.

Library of Congress Subject Headings

Nitrogen -- Fixation

Soil microbiology

Format

application/pdf

Number of Pages

72

Publisher

South Dakota State University

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