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Involvement of poly(3-hydroxybutyrate) synthesis in catabolite repression of tetralin biodegradation genes in Sphingomonas macrogolitabida strain TFA

AuthorsMartín-Cabello, Guadalupe; Moreno-Ruiz, Emilia; Morales, Valle; Floriano Pardal, Belén ; Santero, Eduardo
Issue Date22-Aug-2011
PublisherSociety for Applied Microbiology
Blackwell Publishing
CitationEnvironmental Microbiolgy Reports 3(5): 627-631 (2011)
AbstractThe tetralin biodegradation genes of Sphingomonas macrogolitabida strain TFA are repressed by catabolite. Insertion mutants in which thn genes are transcribed in the presence of a preferential carbon source and tetralin, bear the insertion in phaC, encoding a poly(3-hydroxybutyrate) (PHB) synthase, a key enzyme in PHB synthesis. Mutant complementation with phaC genes from either Ralstonia euthropha or TFA restored PHB accumulation and the wild-type regulatory pattern of thn genes, thus indicating that this accumulation is a signal for carbon sufficient conditions that prevents expression of thn catabolic genes in this α-proteobacteria.
Description5 páginas, 4 figuras.
Publisher version (URL)http://dx.doi.org/10.1111/j.1758-2229.2011.00273.x
Appears in Collections:(CABD) Artículos
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