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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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The response and recovery of Arabidopsis thaliana transcriptome to phosphate starvation

ABSTRACT: This SuperSeries is composed of the following subset Series: GSE33790: The response and recovery of Arabidopsis thaliana transcriptome to phosphate starvation [ATH1-121501] GSE33996: The response and recovery of Arabidopsis thaliana transcriptome to phosphate starvation [At35b_MR] Refer to individual Series

ORGANISM(S): Arabidopsis thaliana

SUBMITTER: Jun Liu

PROVIDER: E-GEOD-34004 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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The response and recovery of the Arabidopsis thaliana transcriptome to phosphate starvation.

Woo Jongchan J MacPherson Cameron Ross CR Liu Jun J Wang Huan H Kiba Takatoshi T Kiba Takatoshi T Hannah Matthew A MA Wang Xiu-Jie XJ Bajic Vladimir B VB Chua Nam-Hai NH

BMC plant biology 20120503

<h4>Background</h4>Over application of phosphate fertilizers in modern agriculture contaminates waterways and disrupts natural ecosystems. Nevertheless, this is a common practice among farmers, especially in developing countries as abundant fertilizers are believed to boost crop yields. The study of plant phosphate metabolism and its underlying genetic pathways is key to discovering methods of efficient fertilizer usage. The work presented here describes a genome-wide resource on the molecular d ...[more]

PMID: 22553952

Similar Datasets

The response and recovery of Arabidopsis thaliana transcriptome to phosphate starvation [At35b_MR]

Project description:Background: Over application of phosphate fertilizers in modern agriculture contaminates waterways and disrupts natural ecosystems. Nevertheless, this is a common practice among farmers, especially in developing countries as abundant fertilizers are believed to boost crop yields. The study of plant phosphate metabolism and its underlying genetic pathways is key to discovering methods of efficient fertilizer usage. The work presented here describes the first genome-wide resource on the molecular dynamics underpinning the response and recovery in roots and shoots of Arabidopsis thaliana to phosphate-starvation. Results: Genome-wide profiling revealed minimal overlap between root and shoot transcriptomes suggesting two independent phosphate-starvation regulons. Novel gene expression patterns were detected for over 1000 candidates and were classified as either initial, persistent, or latent responders. Comparative analysis to AtGenExpress identified novel cohorts of genes co-regulated across multiple stimuli. The hormone ABA displayed a dominant role in regulating many phosphate-responsive candidates. Analysis of co-regulation enabled the determination of primary versus redundant members of closely related gene families with respect to phosphate-starvation. Thus, among others, we show that PHO1 acts in shoot, whereas PHO1;H1 is likely the primary regulator in root. Conclusion: Our results uncover a much larger, staged responses to phosphate-starvation than previously described. To our knowledge, this work describes the highest resolution of genome-wide data on plant nutrient stress to date. 2 tissues X 3 treatments X 3 biological replicates

2012-06-17 | E-GEOD-33996 | biostudies-arrayexpress

The response and recovery of Arabidopsis thaliana transcriptome to phosphate starvation [ATH1-121501]

2012-06-17 | E-GEOD-33790 | biostudies-arrayexpress

Transcriptome Profiling of Roots and leaves Under High Osmotic Stress in Arabidopsis

Project description:The functions of miRNAs and their target mRNAs in Arabidopsis development have been widely documented, however, roles of stress responsive miRNAs and their targets are not as well understood. Using small RNA deep sequencing and ATH1 microarrays to profile mRNAs, we identified IAR3 (IAA-Ala Resistant 3) as a novel target of miR167a. 2 organs X 3 treatments X 3 replicates This submission represnts ATH1 microarrays component of study.

2012-09-19 | E-GEOD-36789 | biostudies-arrayexpress

smRNA under high osmotic stress

Project description:To identifiy osmotic stress responsive smRNAs, we used a deep-sequencing technique to profile small RNA populations in leaf and root tissues of plants under high osmotic stress and control conditions. We treated 30day-old plants with high osmotic stress and sampled leaves and roots from the same plant with 3 biologial replicates. Then, 3 replicates were pooled and total RNA was extracted and prepared for smRNA deep sequencing. After normalization and annotation, we selected potential osmotic stress responsive smRNAs.

2012-09-19 | E-GEOD-36560 | biostudies-arrayexpress

Transcription profiling of Arabidopsis wild type seeds grown under sulfur-deficient conditions

Project description:Comparison of Arabidopsis wild-type developing seeds grown under sulfur-deficient condition vs Arabidopsis wild-type developing seeds grown under control condition.

2007-06-01 | E-ATMX-1 | biostudies-arrayexpress

Expression data from +Pi and -Pi treeatment between WT and spx1spx2 double mutant

Project description:Fourteen days plants growth under hydroponic +P condition (200 µM) were treated with +P(200µM) or –P (no phosphate) for another 7 days, shoot of plants from 3 biological repeats were sampled for Affymetrix microarray analysis. We used microarrays to detail the global programme of gene expression underlying +Pi and -Pi condition between WT and spx1spx2 double mutant. Fourteen days plants growth under hydroponic +P condition (200 µM) were treated with +P(200µM) or –P (no phosphate) for another 7 days, shoot of plants from 3 biological repeats were sampled for Affymetrix microarray analysis.

2014-10-03 | E-GEOD-60823 | biostudies-arrayexpress

Expression data from -Pi treatment between WT, phr1, phr3 and phr1phr2phr3 triple mutant

Project description:Fourteen days plants growth under hydroponic +P condition (200 μM) were treated under –P (no phosphate) condition for another 7 days, shoot of plants from 3 biological repeats were sampled for Affymetrix microarray analysis. We used microarrays to detail the global programme of gene expression underlying -Pi condition among WT and mutants of phr1, phr3 and triple mutant of phr1phr2phr3. Fourteen days plants growth under hydroponic +P condition (200 μM) were treated under –P (no phosphate) condition for another 7 days, shoot of plants from 3 biological repeats were sampled for Affymetrix microarray analysis.

2015-06-25 | E-GEOD-69010 | biostudies-arrayexpress

Transcription profiling time series of wheat roots after re-supply of sulfate to sulfate-deficient roots in hydroponic culture

Project description:Transcriptomic study on the effects of resupply of sulfate to sulfate-deficient wheat roots grown in hydroponic culture.

2009-06-26 | E-MEXP-1694 | biostudies-arrayexpress

Uncovering small RNA-mediated responses to phosphate-deficiency in Arabidopsis by deep sequencing

Project description:Deep sequencing of Arabidopsis thaliana small RNAs was conducted to reveal microRNAs (miRNAs) and other small RNAs that were differentially expressed in response to phosphate (Pi) deficiency. About 3.5 million sequence reads corresponding to 0.6-1.2 million unique sequence tags from each Pi-sufficient or -deficient root or shoot sample were mapped to the Arabidopsis genome. We showed that upon Pi deprivation, the expression of miR156, miR399, miR778 and miR827 was induced, whereas the expression of miR169, miR395 and miR398 was repressed. We found crosstalks coordinated by these miRNAs under different nutrient deficiencies. Moreover, we found a new miRNA family upregulated specifically by Pi deficiency. In addition to miRNAs, we identified one Pi starvation-induced DCL1-dependent small RNA derived from the long terminal repeat of a retrotransposon and a group of 19-nucleotide small RNAs corresponding to the 5' end of tRNA and expressed at a high level in Pi-starved roots. Interestingly, we observed an increased abundance of TAS4-derived trans-acting siRNAs (ta-siRNAs) in Pi-deficient shoots and uncovered an autoregulatory mechanism of PAP1/MYB75 via miR828 and TAS4-siR81(-) that regulates the biosynthesis of anthocyanin. This finding sheds light on the regulatory network between miRNA/ta-siRNA and its target gene. Of note, a substantial amount of miR399* accumulated under Pi deficiency. Like miR399, miR399* can move across the graft junction, implying a potential biological role for miR399*. This study represents a comprehensive expression profiling of Pi-responsive small RNAs and advances our understanding of the regulation of Pi homeostasis mediated by small RNAs. Keywords: Transcriptome analysis Examination of 4 samples from root and shoot tissues of Arabidopsis in either phosphate-sufficient or phosphate-deficient condition

2009-12-01 | E-GEOD-17741 | biostudies-arrayexpress

The small RNA diversity from Medicago truncatula roots under biotic interactions evidences the environmental plasticity of the miRNAome

Project description:Plants show a remarkable plasticity to adapt their root architecture to biotic and abiotic constraints of the soil environment. Although some of these modifications are fine-tuned by miRNAs, there are still shadow zones in these regulations. In the model legume Medicago truncatula, we analyzed the small RNA (smRNA) transcriptome of roots submitted to symbiotic and pathogenic interactions. Mapping on the genome and prediction of pre-miRNA hairpins allowed the identification of 416 candidates. Out of them, we found known and novel variants of 77 miRNA families, already reported in miRBase. In addition, thanks stringent criteria of miRNA prediction, 53 mtr-miRNAs were discovered, including 27 putative miRtrons. Exploring polymorphism in 26 M. truncatula ecotypes, higher polymorphism was observed in conserved rather than legume-specific miRNA genes. An average of 19 targets, mainly involved in environmental responses and signaling, was predicted per novel miRNA. In addition, taking advantage of our large number of smRNA libraries, we identified sets of miRNAs responsive to root pathogens or to symbiotic interactions and the related Nod and myc-LCO signals. 23 libraries of small RNA (smRNA) of roots submitted to symbiotic and pathogenic interactions.

2014-08-15 | E-GEOD-49226 | biostudies-arrayexpress

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