Arabidopsis thaliana
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ABSTRACT:
PROVIDER: PRJNA96835 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Systemic signalling of irradiance and CO2 concentration in Arabidopsis (Treatment 1: Ambient CO2 and Ambient Light)
| PRJNA96829 | ENA
Project description:Systemic signalling of irradiance and CO2 concentration in Arabidopsis (Treatment 2: Elevated CO2 and Ambient Light)
| PRJNA96831 | ENA
Project description:Systemic signalling of irradiance and CO2 concentration in Arabidopsis (Treatment 3: Ambient CO2 and Low Light)
| PRJNA96833 | ENA
Project description:Plants have evolved several mechanisms for sensing increased irradiance, involving signal perception by photoreceptors, and subsequent biochemical and metabolic clues to transmit the signals. This retrograde signaling controls nuclear gene expression. We used microarrays to detail the gene expression response to increased irradiance in three photosynthetically diverse accesssions of Arabidopsis thaliana.
2018-07-10 | GSE115051 | GEO
Project description:Background: The unprecedented rise in atmospheric CO2 concentration and injudicious fertilization or heterogeneous distribution of Mg in the soil warrant further research to understand the synergistic and holistic mechanisms involved in the plant growth regulation. The objective of this work is to understand responses in plants along with interactive effect of elevated CO2 and Mg levels by comparing data on single stress with that of combined stresses. Results: This study investigated the influence of elevated CO2 (800 μL L−1) on physiological and transcriptomic profiles in Arabidopsis cultured in hydroponic media treated with 1 μM (low), 1000 μM (normal) and 10000 μM (high) Mg2+. Following 7-d treatment, elevated CO2 increased the shoot growth and chlorophyll content under both low and normal Mg supply, whereas root growth was improved exclusively under normal Mg nutrition. Notably, the effect of elevated CO2 on mineral homeostasis in both shoots and roots was less than that of Mg supply. Irrespective of CO2 treatment, high Mg increased leaf number but decreased root growth and absorption of P, K, Ca, Fe and Mn whereas low Mg increased the concentration of P, K, Ca and Fe in leaves. Elevated CO2 decreased the expression of genes related to cadmium response, cell redox homeostasis and lipid localization, but enhanced photosynthesis, signal transduction, protein phosphorylation, NBS-LRR disease resistance proteins and subsequently programmed cell death in low-Mg shoots. By comparison, elevated CO2 enhanced the response of lipid localization (mainly LTP transfer protein/protease inhibitor), endomembrane system, heme binding and cell wall modification in high-Mg roots. Some of these transcriptomic results are substantially in accordance with our physiological and/or biochemical analysis. Conclusions: Contrasting changes were found between roots and shoots with the shoot transcriptome being more severely affected by low Mg while the root transcriptome more affected by high Mg. Elevated CO2 had a greater effect on transcript response in low Mg-fed shoots as well as in high Mg-fed roots. The present findings broaden our current understanding on the interactive effect of elevated CO2 and Mg levels in the Arabidopsis, which may help to design the novel metabolic engineering strategies to cope with Mg deficiency/excess in crops under elevated CO2.
2015-05-01 | GSE64501 | GEO
Project description:To gain initial insight into the regulatory mechanisms by which signalling in response to an elevated CO2 concentration exerts CA1- and CA4-dependent repression of stomatal development, we conducted high-throughput RNA-seq transcriptomics on immature aerial tissues of A. thaliana seedlings grown at the low (150 p.p.m) and elevated CO2 concentrations (500 p.p.m). Hypocotyls and cotyledons of developing seedlings (5 DAG; WT and ca1 ca4 mutant plants; n>1,000 per sample) grown in the low and elevated CO2 concentrations were used as source tissue to extract total RNA and conduct RNA-seq experiments using the HiSeq 2000 platform (Illumina). The raw data from three independent biological replicates (experiments).
2014-09-24 | E-MTAB-4447 | biostudies-arrayexpress
Project description:Chloroplast signalling gates thermotolerance in Arabidopsis
| PRJNA378644 | ENA
Project description:Treatment of Arabidopsis with low concentration of nitrate
| PRJNA120647 | ENA
Project description:This data set corresponds to the analysis of genome expression, realized by RNA-seq, in response to an elevation of atmospheric CO2 concentration in root and shoot of Arabidopsis thaliana.
2024-01-31 | E-MTAB-13661 | biostudies-arrayexpress
Project description:Growth daylength, ambient CO2 level, and intracellular hydrogen peroxide (H2O2) availability all impact plant function by modulating signalling pathways, but interactions between them remain unclear. Using a whole-genome transcriptomics approach, we exploited the conditional photorespiratory nature of the catalase-deficient cat2 mutant to identify gene expression patterns responding to these three factors. Arabidopsis Col-0 and cat2 grown for 5 weeks in high CO2 in short days (SD) were transferred to air in SD or long days (LD), and microarray analysis was performed. Of more than 500 genes differentially expressed in Col-0 between high CO2 and transfer to air in SD, the response of about one-third was attenuated by transfer to air in LD. H2O2-responsive genes in cat2 were highly dependent on daylength. The majority of H2O2-induced genes were more strongly up-regulated after transfer to air in SD than to LD, while a smaller number showed an opposing pattern. Responses of other H2O2-dependent genes indicate redox-modulation of the daylength control of fundamental cell processes. The overall analysis provides evidence that (1) CO2 level modulates stress-associated gene expression; (2) both CO2 and H2O2 interact with daylength and photoreceptor signalling pathways; and (3) cellular signalling pathways may be primed to respond to increased H2O2 in a daylength-determined manner. Two genotypes x five conditions experiment, including Arabidopsis Col0WT and cat2-1 plants grown in soil for 5 weeks in a 8h light/16h dark (short day) regime at high CO2 concentration (3000 ppm CO2) and subsequently transferred to air (400 ppm CO2) in a short day or long day (16h light/8h dark) regime for 2 and 4 days. Three biological replicates were used that consist each of a pool of two leaves from different plants. Each sample was hybridized to one Genechip® Arabidopsis ATH1 Genome Array (Affymetrix).
2012-03-07 | E-GEOD-27985 | biostudies-arrayexpress