Project description:Microarray analysis for the biofilm cells of Pseudomonas aeruginosa PA14 wild-type vs the tpbA (PA14_13660) mutant in LB medium at 4 and 7 h at 37C
Project description:Microarray analysis for the biofilm cells of Pseudomonas aeruginosa PA14 wild-type vs the tpbA (PA14_13660) mutant in LB medium at 4 and 7 h at 37C Microarray analysis for the biofilm cells of Pseudomonas aeruginosa PA14 wild-type vs the tpbA (PA14_13660) mutant in LB medium at 4 and 7 h at 37C.
Project description:PA3225 is a LysR-type transcriptional regulator, and the ΔPA3225 deletion mutant is more resistant to various antibiotics than the wild-type PA14 strain in both planktonic and biofilm cells. In order to characterise the regulon of PA3225, we compared the transcriptomes of biofilm and planktonic ΔPA3225 to biofilm and planktonic PA14 wild-type by RNA-seq.
Project description:The previously uncharacterized proteins HigB (unannotated) and HigA (PA4674) of Pseudomonas aeruginosa PA14 were found to form a type II TA system in which antitoxin HigA masks the RNase activity of toxin HigB through direct binding. To determine the physiological role of HigB/HigA in P. aeruginosa, a whole-transcriptome experiment was performed for the higA antitoxin deletion mutant of the PA14 strain compared to the wild-type PA14 strain. The rationale was that for the strain that lacks the antitoxin, the effect of the toxin could be discerned due to enhanced activity of the toxin. Furthermore, toxin HigB reduces production of the virulence factors pyochelin, pyocyanin, swarming, and biofilm formation.
Project description:P. aeruginosa PA14 mutant strain PA4496 expression in biofilm cells relative to PA14 wild-type strain expression in biofilm cells. All samples cultured in LB with glass wool
Project description:Comparative transcriptome analyses of P. aeruginosa PA14 pyrF mutant with PA14 wild type, and with PA14 pyrF mutant with 1 mM uracil supplement and PA14 wild type with 10 mM uracil in biofilm cells. All samples were cultured in LB with glass wool at 37C for 7h. Keywords: Pseudomonas aeruginosa biofilm pyrF uracil
Project description:Before and after anaerobic Fe(II) shocked WT and ∆bqsR of late stationary phase P. aeruginosa PA14 strains Associated publication: Kreamer NN, Costa F, Newman DK. 2015. The ferrous iron-responsive BqsRS two-component system activates genes that promote cationic stress tolerance. mBio 6(1):e02549-14. doi:10.1128/mBio.02549-14.
Project description:Comparative transcriptome analyses of P. aeruginosa PA14 pyrF mutant with PA14 wild type, and with PA14 pyrF mutant with 1 mM uracil supplement and PA14 wild type with 10 mM uracil in biofilm cells. All samples were cultured in LB with glass wool at 37C for 7h. Experiment Overall Design: Strains: P. aeruginosa PA14 wild type, PA14 pyrF mutant Experiment Overall Design: Medium: LB for PA14 wild type and PA14 pyrF mutant, LB with 1 mM uracil for PA14 pyrF mutant, LB with 10 mM uracil for PA14 wild type Experiment Overall Design: Cell type: Biofilm cells grown on glass wool Experiment Overall Design: Time: 7 h Experiment Overall Design: Temperature: 37C
