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Desulfitobacterium hafniense DCB-2 Gene Expression Differences from Pyruvate Fermentation when Grown with Ferric Citrate, Selenate, Nitrate, or Uranyl Acetate

ABSTRACT: Desulfitobacterium hafniense DCB-2, a halo-respirer and versatile inorganic ion reducer, grows in hazardous waste contaminated environments. Gene expression changes were determined when the strain was grown in the presence of high concentrations of Fe(+3), Se(+6), U(+6), or NO3(-) as alternative electron acceptors. (Thesis by Christina L. Harzman at Michigan State University, 2009)

ORGANISM(S): Desulfitobacterium hafniense DCB-2

PROVIDER: GSE33988 | GEO | 2012/11/29

SECONDARY ACCESSION(S): PRJNA150607

REPOSITORIES: GEO

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Desulfitobacterium hafniense DCB-2 Gene Expression Differences from Pyruvate Fermentation when Grown with Ferric Citrate, Selenate, Nitrate, or Uranyl Acetate

Project description:Desulfitobacterium hafniense DCB-2, a halo-respirer and versatile inorganic ion reducer, grows in hazardous waste contaminated environments. M-BM- Gene expression changes were determined when the strain was grown in the presence of high concentrations of Fe(+3), Se(+6), U(+6), or NO3(-) as alternative electron acceptors. (Thesis by Christina L. Harzman at Michigan State University, 2009) RNA was used to directly compare gene expression in control samples of pyruvate fermentation (20 mM) to fermentation in the presence inorganic electron acceptors or respiration-inducing conditions. M-BM- The inorganic electron acceptors added to media for fermentation were 1 mM selenate or 0.5 mM uranyl acetate. The respiration-inducing conditions were 50 mM ferric citrate (20 mM lactate carbon source) or 10 mM nitrate (20 mM lactate carbon source). Microarray hybridizations were performed with a dye swap and 3 biological replicates for a total of 6 slides per condition for comparison.

2012-11-29 | E-GEOD-33988 | biostudies-arrayexpress