Project description:Genome-wide transcriptional profiling on microarray was performed for strain MC4100 in comparison to its otherwise isogenic ycgE::cat derivative. Strains were grown in LB at 28°C and cells were harvested at an OD (578nm) of 4.0.
Project description:Wildtype and ycgF::kan cells were grown in LB medium at 37°C to an OD(578 nm) of 0,7. Then the cultures were shifted to 16°C and blue-light irradiated for 3 hours.
Project description:SK-N-BE(2)c and SK-N-SH neuroblastoma cells were transfected in triplicates with siRNA against MXI1 or an unspecific control siRNA and grown at hypoxia (1 % O 2) for 24 hours. RNA extracted from each siMXI1 sample was hybridized to the corresponding control siRNA sample in dye-swap duplicates giving a total of 12 hybridizations. <br><br>After quality data filtering the dye-swap assay pairs were merged by averaging ratios over each array reporter, follow by LOWESS normalization, giving a total of six assays.
Project description:S. meliloti 1021FDC5 was grown at 30ºC in 20 ml of TY broth with shaking to late logarithmic phase (optical density at 600 nm = 1-1.2). After incubation, cells were pelleted, washed twice in MM and resuspended in 2 ml of the latter medium. For time course experiments in liquid, 0.5 ml of the inoculation culture was added to 50 ml of fresh MM. At various times, samples were removed for determining viable cells counts as well as for RNA isolation/preparation (7 and 14 hours). For experiments on plates, 20 ml of MM containing 0.7% (Semisolid) or 1.3% (Solid) agar was dispensed onto each Petri dish and allowed to gel. The plates were air dried at room temperature for 15 min. 0.1 ml of the inoculation culture was plated onto the surface of the plates and allowed to dry for 10 min. The plates were then inverted and incubated at 30ºC.