Use this URL to cite or link to this record in EThOS: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.566422
Title: Iron-dependent regulation of gene expression in Corynebacterium pseudotuberculosis
Author: Walker, Caray A.
Awarding Body: University of Glasgow
Current Institution: University of Glasgow
Date of Award: 2009
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Abstract:
This study set out to analyse C. pseudotuberculosis within an environment relevant to that which would be encountered within its natural host. The impact of the availability of iron within the growth environment of numerous bacteria has been widely reported, and an equivalent investigation was conducted to determine whether the same was true of C. pseudotuberculosis. To this end, a novel chemically-defined medium was designed, which supported the growth of C. pseudotuberculosis, but in which the concentration of specific growth factors could be manipulated. Subsequently, iron was shown to be essential for C. pseudotuberculosis growth, and analysis of secreted protein profiles revealed differential expression between low- and high-iron growth conditions. Furthermore, growth experiments conducted in the defined medium revealed that C. pseudotuberculosis is capable of obtaining iron from the host iron-binding proteins, transferrin and lactoferrin. The results presented in this thesis confirm the importance of iron to C. pseudotuberculosis, and reveal the existence of an iron-dependent regulator which is involved in regulating the expression of multiple target genes.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.566422  DOI: Not available
Keywords: QR Microbiology ; QH426 Genetics
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