Transcriptional profiling of Porphyromonas gingivalis W50 wild-type versus an isogenic FeoB1 mutant W50FB1
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ABSTRACT: Reference design (using Cy5 labelled genomic DNA as the reference) to compare two genotypes: wild-type W50 vs an isogenic FeoB1 mutant W50FB1. Six biological replicates of both W50 and W50FB1, grown in continuous culture.
Project description:Effect of the inactivation of locus PP4959 upon gene expression of Pseudomonas putida KT2440 in the stationary phase of growth in rich medium LB. This locus encodes the unique dual GGDEF/EAL domains response regulator in KT2440. To identify those genes with altered expression, cells were cultivated in LB at 24 M-:C to reach a turbidity at 660 nm of 3.3.
Project description:Plasmid-free Pseudomonas putida KT2440 compared with the same strain harbouring NAH7 plasmid; all the cells were grown in minimal medium M9 with glucose
Project description:Plasmid-free Pseudomonas putida KT2440 compared with the same strain harbouring NAH7 plasmid; all the cells were grown in minimal medium (M9 with glucose) saturated with naphthalene.
Project description:Arabidopsis rosette leaves were harvested from plants grown under <br><br>different photoperiods under 100 M-5mol photons m-2 s-1 at 20 M-0C. <br><br><br><br>In the first experiment plants grown under short day conditions 8L/16D (8 h light / 16 h dark) for 4 weeks were compared with plants <br><br>grown under long day (16L/8D) for 3 weeks.<br><br><br><br>In the second experiment plants grown under 12L/12D <br><br>for 2 weeks were compared with plants grown first 2 weeks under <br><br>12L/12D and then two days under short day (8L/16D) conditions.
Project description:Arabidopsis thaliana wildtype (Col-0) was compared with the ntrc mutant under different photoperiods (short day: 8h/16h; long day 16h/8h light/dark) and different ages (10d and 28/21d).
Project description:Effect of the inactivation of locus PP4959 upon gene expression of P. putida KT2440 in the rhizosphere of corn (Zea mays var. Girona). This locus encodes the unique dual GGDEF/EAL domains response regulator in KT2440. To identify those genes with altered expression, cells were recovered from the rhizosphere six days after inoculation of gnotobiotic seedlings.
Project description:CGH was used to compare the genomes of a non-invading P. gingivalis strain to the database W83 strain (invader). For hybridization and scanning, TIGR microarrays and protocols were used. The results were independently processed using two different software packages. We used P. gingivalis microarrays in comparative genomics to specifically address the P. gingivalis invasive genotype using invasive and non-invasive phenotypes.
Project description:This experiment examines gene expression profiles in individual honey bee brains (adult worker Apis mellifera). The purpose is to test whether behavioral phenotype can be predicted by expression profiles in individual brains in a naturalistic context (i.e., colonies in the field). The two behavioral phenotypes examined are 'nurse' and 'forager'. Other factors examined are age, genotype (full-sister group), and colony environment.<br><br> An additional processed data file is available on the FTP site for this experiment.
Project description:A pre-culture in NGY (overnight 30M-0C) was used to inoculate RPMI-1640 medium to an initial optical density at 600 nm (OD600) of 0.05. Cells were then grown to mid exponential phase (OD600 = 0.5M-^V0.6) at the appropriate temperature (25M-0C or 35M-0C) before the culture was<br><br>split into two aliquots and fluconazole (32 ?g mlM-^V1 final concentration) added to one; the other serving as the control. After 2 h the cells were harvested by centrifugation and flash<br><br>frozen in liquid nitrogen. Three independent cultures were grown for RNA extraction for each isolate at each condition. RNA was prepared from cell pellets with TRIZOLM-. reagent (Invitrogen) and a mechanical disruption method.