Anoxia induces several heat shock proteins and a heat pre-treatment can acclimatize Arabidopsis seedlings to a subsequent anoxic treatment. In this work we analyzed the response of Arabidopsis seedlings to anoxia, heat and a combined heat+anoxia stress. A significant overlapping between the anoxic and heat shock responses has been observed by whole-genome microarray analysis.
The heat-inducible transcription factor HsfA2 enhances anoxia tolerance in Arabidopsis.
Age, Treatment
View SamplesArabidopsis thaliana ecotype Columbia glabra were grown for 4 days in the dark without added sucrose. Samples were subsequently kept for 6h either [1] under aerobic conditions, [2] under anoxia in absence of sucrose or [3] under anoxia in presence of sucrose.
A genome-wide analysis of the effects of sucrose on gene expression in Arabidopsis seedlings under anoxia.
No sample metadata fields
View SamplesDark grown Arabidopsis seedlings (Columbia gl1) were grown in the dark at 23C for 4 days before adding 90 mM sucrose for 6h.
Identification of sugar-modulated genes and evidence for in vivo sugar sensing in Arabidopsis.
No sample metadata fields
View SamplesThe effect of the overexpression of a stabilized version of the transcription factor RELATED TO APETALA2.12 (RAP2.12) on the transcriptome of Arabidopsis rosettes was investigated. To this purpose, 4-week old rosette of wild-type and 35S:13RAP2.12 plants were compared. Samples were composed of pools of 3 plants.
Age-dependent regulation of ERF-VII transcription factor activity in Arabidopsis thaliana.
Age, Specimen part
View SamplesHRE1 and HRE2 are two ERF transcription factors induced by low oxygen. In this work we analyzed the effect of ectopic expression of HRE1 and HRE2 on the arabidopsis transcriptome in aerobic and hypoxic (1% O2) conditions. While HRE1 has a moderate effect on the expression of anaerobic genes under hypoxia, HRE2 does not affect them either under aerobic or hypoxic conditions.
HRE1 and HRE2, two hypoxia-inducible ethylene response factors, affect anaerobic responses in Arabidopsis thaliana.
Age, Treatment
View SamplesIn this study we analyzed the effect of overexpression of an HA-tagged version of the ERF RAP2.12 on the transcriptome levels in aerobic and hypoxic-treated (O2 21% and 1%, respectively) Arabidopsis thaliana rosettes.
Oxygen sensing in plants is mediated by an N-end rule pathway for protein destabilization.
Treatment
View SamplesThis study analyzes transcriptomic data of Arabidopsis thaliana Col-0 and overexpression lines of Hypoxia Response Attenuator (HRA1; At3g10040) with Col-0 background (OE-HRA1). Two independent transgenic lines of OE-HRA1 were considered as biological replicates (OE-HRA1#1 and OE-HRA1#2). Seven-day-old seedlings were treated either with or without hypoxia (low oxygen) stress for 2 hours. This dataset includes CEL files, RMA signal values and MAS5 P/M/A calls from total mRNA populations. Quantitative profiling of cellular mRNAs was accomplished with the Affymetrix ATH1 platform.
A trihelix DNA binding protein counterbalances hypoxia-responsive transcriptional activation in Arabidopsis.
Specimen part, Treatment
View SamplesWe treated Arabidopsis seedlings with chitosan and carried out a transcript profiling analysis (GeneChip microarrays) in order to identify genes and transcription factors regulated by chitosan. The results showed that jasmonate and defense responsive genes, camalexin and lignin biosynthetic genes were among genes up-regulated by chitosan. Several transcription factors are also strongly induced by chitosan.
Transcript profiling of chitosan-treated Arabidopsis seedlings.
Age, Treatment
View SamplesRice (Oryza sativa L.) seeds can germinate in complete absence of oxygen. Under anoxia, the rice coleoptile elongates, reaching a length greater than that of the aerobic one. In this series, we compare the transcriptome of rice coleoptiles grown under aerobic and anaerobic conditions.
Transcript profiling of the anoxic rice coleoptile.
No sample metadata fields
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Plant cysteine oxidases control the oxygen-dependent branch of the N-end-rule pathway.
Age, Specimen part, Treatment
View Samples