Publication Date

1-1-1996

Document Type

Dissertation/Thesis

First Advisor

Jablonski, Peter E.

Degree Name

B.S. (Bachelor of Science)

Department

Department of Biological Sciences

Abstract

Haloalkaliphilic Archaea, Natronococcus occultus is one of a few organisms which survive in soda lakes. It grows optimally in 3.4 M NaCl and pH 9. It is suspected that this organism has resistances to heavy metals because its distant relative, haloneutrophilic Archaea, had shown resistance to several different heavy metals. Although no haloneutrophilic Archaea had shown resistance to arsenate, several eubacteria had been tested positive for arsenate resistance. Natronococcus occultus was tested for arsenate resistance, partially because arsenate stays in solution even in 3.4 M NaCl and at pH9. The uptake rates of phosphate and arsenate are compared to investigate the mechanism of the resistance, because arsenate is an analog of phosphate and is known to be transported into the cell by a phosphate transport system.

Comments

Includes bibliographical references.

Extent

8 pages

Language

eng

Publisher

Northern Illinois University

Rights Statement

In Copyright

Rights Statement 2

NIU theses are protected by copyright. They may be viewed from Huskie Commons for any purpose, but reproduction or distribution in any format is prohibited without the written permission of the authors.

Media Type

Text

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