First Advisor

Mary L. Taylor

Term of Graduation

Fall 1991

Date of Publication

12-10-1991

Document Type

Thesis

Degree Name

Master of Science (M.S.) in Biology

Department

Biology

Language

English

Subjects

Iron proteins -- Physiological effect, Salmonella, Bacteremia

DOI

10.15760/etd.6265

Physical Description

1 online resource (2, vi, 60 pages)

Abstract

I have investigated the possibility that specific conalbumin (ovotransferrin) iron saturation levels enable less virulent strains of Salmonella to become more virulent. Iron starved cells of two pathogenic Salmonella strains, S. paratyphi B var. java and S. thompson, were cultured in iron limited media at 3 different iron conalbumin saturation levels. Results indicate that strains differ significantly at both low and high iron saturation conalbumin. These differences depict a growth advantage for S. paratyphi B which correlates with reports by the Centers for Disease Control that S. paratyphi B was 3 times more frequent in blood isolates than S. thompson. The ability to use protein bound iron may account for the higher involvement of S. paratyphi B in bacteremia.

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Comments

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Persistent Identifier

https://archives.pdx.edu/ds/psu/25708

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