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Transcription profiling of Pseudomonas aeruginosa PAO1 wildtype and PA2663 biofilm cells

ABSTRACT: P. aeruginosa PAO1 PA2663-UW expression in biofilm cells relative to P. aeruginosa PAO1 WT-UW expression in biofilm cells. All samples cultured in LB with glass wool. Experiment Overall Design: Strains: P. aeruginosa PAO1 wild-type, PA2663 mutant Experiment Overall Design: Medium: LB Experiment Overall Design: Biofilm grown on glass wool Experiment Overall Design: Time: 7 h Experiment Overall Design: Cell type: biofilm

ORGANISM(S): Pseudomonas aeruginosa

SUBMITTER: Can Attila

PROVIDER: E-GEOD-7968 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Project description:We used DNA microarrays to investigate the impact of indole and 7-hdroxyindole on P. aeruginosa PAO1.For the microarray experiments, 10 g glass wool (Corning Glass Works, Corning, N.Y.) were used to form biofilms in 250 mL in 1 L Erlenmeyer shake flasks which were inoculated with overnight cultures of P. aeruginosa PAO1 diluted that were 1:100. For P. aeruginosa with 7-hydroxyindole and indole, 500 uM 7-hydroxyindole in 250 uL DMF, 1000 uM indole in 250 uL DMF, or 250 uL DMF alone were added to cells grown in LB. The cells were shaken at 250 rpm and at 37oC for 7 h to form biofilms on the glass wool, and RNA was isolated from the biofilm cells. Keywords: comparison with E. coli signal indole on P. aeruginosa PAO1 For the microarray experiments, 10 g glass wool (Corning Glass Works, Corning, N.Y.) were used to form biofilms in 250 mL in 1 L Erlenmeyer shake flasks which were inoculated with overnight cultures of P. aeruginosa PAO1 diluted that were 1:100. For P. aeruginosa with 7-hydroxyindole and indole, 500 uM 7-hydroxyindole in 250 uL DMF, 1000 uM indole in 250 uL DMF, or 250 uL DMF alone were added to cells grown in LB. The cells were shaken at 250 rpm and at 37oC for 7 h to form biofilms on the glass wool, and RNA was isolated from the biofilm cells.

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