Genetic Evidence for a Regulatory Pathway Controlling Alternative Oxidase Production in Neurospora crassa

Genetics | January 1, 2005| | Copyright

ABSTRACT

When the cytochrome-mediated mitochondrial electron transport chain of Neurospora crassa is disrupted, an alternative oxidase encoded by the nuclear aod-1 gene is induced. The alternative oxidase donates electrons directly to oxygen from the ubiquininol pool and is insensitive to chemicals such as antimycin A and KCN that affect the standard electron transport chain. To facilitate isolation of mutants affecting regulation of aod-1, a reporter system containing the region upstream of the aod-1 coding sequence fused to the coding sequence of the N. crassa tyrosinase gene (T) was ...

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