Interactions between H2O2 and glutathione in gene expression
ABSTRACT: rs08-03_glutathion - glutathion - How does glutathione content or reduction state affect H2O2-induced changes in the transcriptome? - Three single Arabidopsis mutants were used: cat2, knockout for catalase2 and so enriched in H2O2; cad2, defective in glutathione content; cytGR, knockout for cytosolic glutathione reductase. Cat2 was crossed with cad2 and cyt GR, and col0, 3 single mutants, and 2 double mutants were sampled in controlled growth conditions either in 8h or 16h photoperiod. Keywords: gene knock out 20 dye-swap pairs - CATMA arrays: 40 arrays
Arabidopsis GLUTATHIONE REDUCTASE1 plays a crucial role in leaf responses to intracellular hydrogen peroxide and in ensuring appropriate gene expression through both salicylic acid and jasmonic acid signaling pathways.
Glutathione is a major cellular thiol that is maintained in the reduced state by glutathione reductase (GR), which is encoded by two genes in Arabidopsis (Arabidopsis thaliana; GR1 and GR2). This study addressed the role of GR1 in hydrogen peroxide (H(2)O(2)) responses through a combined genetic, transcriptomic, and redox profiling approach. To identify the potential role of changes in glutathione status in H(2)O(2) signaling, gr1 mutants, which show a constitutive increase in oxidized glutathio ...[more]
Project description:rs10-01_rrm - quadruple rrm experience - What is the role of the RRM protein family in plants? Plants were grown on soil in controlled environment under LD (16 h light/8 h dark) and the rosette leaves (8-leaf stage seedlings) were collected for RNA preparation. Keywords: normal vs transgenic comparison 2 dye-swap - CATMA arrays
Project description:gnp06-03_microtrac Endogenous hairpins-ir71 targets What are the genes (including miRNA precursors) that are differentially regulated in a set of viral siRNA in diferent mutants? Lines IR71 KO n°3 and Col-0 were grown on soil until bolting, Flower buds were then harvested and RNA extracted with Qiagen RNeasy Plant mini kit. RNA was stored at -20°C. 3 dye-swap - gene knock out
Project description:ra10-01_laccases; laccase mutations. We demonstrated that laccases are involved in lignin polymerisation. Mutants have already been tested on microarrays and there is few differences compared to wild-type. The laccase mutation seems surgical. We possess a new double mutant, called snips, with a semi-dwarf phenotype, and we want to determine its profile. Each mutant was compared to wild type. All plants were harvested at the same developmental stage in the same growth chamber between 10h30 and 11h. 10 dye-swaps. CATMA arrays.
Project description:What is the physiological function of cytochrome b561 in Arabidopsis thaliana - We want to check which possible changes occur in gene expression by knocking out the AtCytb1 gene. au08-01_cytb561 - cytb1-1 Keywords: gene knock out 4 dye-swap - CATMA arrays
Project description:ra09-02_tctp - rnai - Identification of effector genes that act downstream of AtTCTP, using knockout ( tctp-2), RNAi expressing line (35S::RNAi-AtTCTP) and over expressing line (35S::AtTCTP) - transcriptome analysis in leaf of 35S::RNAi-AtTCTP versus wild type Keywords: normal vs rnai mutant comparison 2 dye-swap - CATMA arrays
Project description:ra09-02_tctp - over expression - Identification of effector genes that act downstream of AtTCTP, using knockout ( tctp-2), RNAi expressing line (35S::RNAi-AtTCTP) and over expressing line (35S::AtTCTP) - transcriptome analysis in leaf of 35S::AtTCTP versus wild type Keywords: gene knock in (transgenic) 2 dye-swap - CATMA arrays
Project description:au08-02_mkk1-mkk2 - mkk1-mkk2 - Functional redundancy of the two MAPKKs MKK1 and MKK2. - mkk1 and mkk2 k.o. plants were crossed. Seedlings homozygous for mkk1 and/or mkk2, in parallel with control wild type seedlings, were grown on sterile medium. RNA was extracted from non-treated seedlings. aRNA was synthesised using the Ambion aRNA kit. Transcriptome data will be compared with those from a (already available) microarray of a mutant lacking the MAPKKkinase that is upstream of MKK1 and MKK2 (MEKK1). 4 dye-swap - gene knock out
Project description:gnp06-02_starch - isd-starch - What is the impact of the absence of different genes related to the starch metabolism on the global gene expression in Arabidopsis leaves. - comparison between several mutant of the starch biosynthesis and the WT, at the end of the day and at the end of the night Keywords: gene knock out 48 dye-swap - CATMA arrays
Project description:au10-07_mpk4gof - mpk4/mpk4 gof vs mpk4/mpk4 vs col0 - Genes regulated by MPK4 pathway. - In order to study of the genes controlled by MPK4 pathway we generate mpk4 complemented lines expressing active MPK4 (MPK4 GOF). For the transcriptome analysis we compare the MPK4 GOF to mpk4/MPK4 (complemented mpk4 mutant with a wt MPK4) and to Col0. Keywords: genotype comparaison 6 dye-swap - CATMA arrays Comparisons of MPK4 GOF to mpk4/MPK4 (complemented mpk4 mutant with a wt MPK4) and to Col0.
Project description:au09-04_geminisilsup2 - gemsupv2 - Determine the level of expression in transgenic plants expressing geminviral gene silencing suppressors. One transgenic line of Arabidopsis overexpressing the geminiviral silencing suppressor V2 was grown in addition to a control, and their total RNA was extracted in order to study their genetic expression profiles. 3 dye-swaps - gene knock-in (transgenic).