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Arabidopsis thaliana

ABSTRACT: Expression data from Arabidopsis thaliana PHR1 primary targets genes under phosphate starvation stress

OTHER RELATED OMICS DATASETS IN: E-GEOD-16722

PROVIDER: PRJNA124443 | ENA |

REPOSITORIES: ENA

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Expression data from Arabidopsis thaliana under phosphate starvation stress

2010-12-09 | GSE16722 | GEO

Expression data from Arabidopsis thaliana under phosphate starvation stress

Project description:We performed a transcriptomic analysis of Pi starvation responses in Arabidopsis thaliana (Columbia-0) wild type plants under phosphate starvation stress and in plants with altered PHR1(-like) activity, comparing mutants of phr1 and phr1-phl1 grown in phosphate-lacking medium. Results show the central role of PHR1 and functionally redundant members of its family in the control of transcriptional responses to Pi starvation. The analysis was performed in wild-type plants grown for seven days in complete (+Pi) and Pi-lacking (-Pi) Johnson solid media and the single phr1 and double phr1-phl1 mutants grown for 7 days in –Pi medium. Three independent biological samples of total RNA from shoot and root were hybridized separately.

2010-12-09 | E-GEOD-16722 | biostudies-arrayexpress

Expression data from Arabidopsis thaliana PHR1 primary targets genes under phosphate starvation stress

2010-12-09 | GSE20955 | GEO

Transcriptional profiling of Arabidopsis thaliana grown under arsenate stress

2008-02-08 | GSE10425 | GEO

Expression data from Arabidopsis thaliana PHR1 primary targets genes under phosphate starvation stress

Project description:We performed a transcriptomic analysis of Pi starvation responses in Arabidopsis thaliana (Columbia-0) phr1 mutant plants expressing PHR1 in presence of cicloheximide, that inhibit protein translation, thus preventing any effect of PHR1 on the expression of indirect targets. Results show the primary target genes of PHR1 in the responses to Pi starvation. The analysis was performed in phr1 plants and phr1 plants overexpressing a fusion GR:PHR1 (OXGR:PHR1) whose activity is postranslationally controlled by dexamethasone (DEX), that allows studying gene expression upon PHR1 activation and the concomitant inhibition of translation with cycloheximide (CHX), thus preventing any effect of PHR1 on the expression of indirect targets. To perform this study, phr1 and OXGR:PHR1 phr1 plants were grown for seven days in complete Johnson liquid media (+Pi), 2 days in Pi-lacking media (-Pi) and then supplemented with 5 µM DEX and 10 µM CHX for 6 hours before harvesting. Three independent biological samples of total RNA from shoot and root were hybridized separately.

2010-12-09 | E-GEOD-20955 | biostudies-arrayexpress

Arabidopsis thaliana

Project description:Expression data from Arabidopsis thaliana under phosphate starvation stress

| PRJNA117483 | ENA

RNA-seq of Arabidopsis thaliana seedlings treated with MeJA or flg22 under full and low phosphate conditions

Project description:This study evaluates the transcriptome of Arabidopsis thaliana seedlings chronically exposed to the hormone Methyl Jasmonate (MeJA) or to the bacterial elicitor flg22 (a 22-amino acid peptide from flagellin). Treatments were performed under high and low phosphate availability using wild-type Col-0 plants and the phr1 phl1 mutant.

2017-03-20 | GSE87336 | GEO

PPSR1 protein functions as an important hub regulator to enhance plant growth performance under N, P and K deficient stress conditions

Project description:Phosphorus (P) is an essential macronutrient for various biological processes in plant growth. Modern agricultural science has advanced the knowledge of regulatory mechanisms underlying phosphorus starvation responses (PSRs), aiming to develop phosphate-efficient crops with sustainable production under reduced Pi fertilizer application. However, information regarding coordinated shoot and root adaptation in response to combined nutrient stresses is limited. This study investigated the role of Phloem Phosphate Stress Repressed 1 (PPSR1) in modulating PSRs and other nutrient adaptation. The Arabidopsis functional homologue of Cucumis sativus PPSR1 (CsPPSR1), designated AtPPSR1, was identified. AtPPSR1 encodes a glycine-rich domain-containing protein, and its ectopic expression confers enhanced growth performance to plants. Transcriptomic analyses revealed AtPPSR1 as a regulatory mediator of PSRs, photosynthesis and root development. We revealed that AtPPSR1 interacted with PHOSPHATE STARVATION RESPONSE 1 (PHR1) to regulate PHR1-target genes for adaptive root development, in response to Pi-starvation stress. Additionally, AtPPSR1 was discovered as graft-transmissible, and the shoot-borne AtPPSR1 played a role in restoring the root phenotype of the ppsr1 mutant. Physiological analyses revealed that enhanced AtPPSR1 expression enabled resilience to nitrogen (N) and potassium (K)-starvation, as well as to Pi-deficiency. Furthermore, we identified homologues of CsPPSR1 and AtPPSR1 in Brassica napus (canola), which displayed similar expression patterns in response to Pi-starvation stress. Overexpression of PPSR1, identified from Arabidopsis, cucumber and canola, improved growth performance and seed yield in canola under N-, Pi- or K-deficient conditions. These findings provide novel insights into PPSR1-mediated molecular coordination to improve growth performance under mineral nutrient-stresses conditions.

2025-12-13 | GSE292879 | GEO

RNA-seq of the roots of Arabidopsis thaliana plants growing in soil treated under different fertilization regimes.

Project description:This study evaluates the transcriptome of 3 Arabidopsis thaliana genotypes (Col-0, phf1 and phr1/phl1) growing in soil treated under a gradient of fertilization regimes.

2019-04-06 | GSE129394 | GEO

Transcriptional profiling of Arabidopsis thaliana grown under arsenate stress

Project description:We examined the changes in gene expression in Arabidopsis thaliana grown under arsenate stress. The transcriptional profiling reveals antioxidant activity and repression of the phosphate starvation response. Keywords: dual label, stress response This experiment included a comparison of three biological replicate controls against three biological arsenate-stressed replicates with a dye-swap technical replicate for a total of six microarray slide hybridizations.

2010-05-26 | E-GEOD-10425 | biostudies-arrayexpress

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