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Time series study of ABA-treated Arabidopsis thaliana rosettes [Illumina TruSeq mRNA Stranded Sample Prep Kit]

ABSTRACT: The hormone abscisic acid (ABA) regulates many plant stress responses and plant development by activating a complex gene regulatory network. This time series experiment was designed to unravel the architecture and dynamics of the ABA gene regulatory network.

ORGANISM(S): Arabidopsis thaliana

PROVIDER: GSE267648 | GEO | 2024/06/24

REPOSITORIES: GEO

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Time series study of ABA-treated Arabidopsis thaliana rosettes [Illumina TruSeq mRNA Sample Prep Kit]

Project description:The hormone abscisic acid (ABA) regulates many plant stress responses and plant development by activating a complex gene regulatory network. This time series experiment was designed to unravel the architecture and dynamics of the ABA gene regulatory network.

2024-06-24 | GSE267647 | GEO

Transcriptional profiling by array of Arabidopsis ABA auxotroph to identify early downstream targets of transcription in response to a small dose of abscisic acid (ABA)

Project description:Abscisic acid (ABA) is a plant hormone that is important in responding to various environmental stresses. Using an ABA auxotroph in Arabidopsis (aba2-2) as the plant material, we would like to identify early downstream targets of transcription in response to a small dose of ABA, 1 uM. We also added cycloheximide to preferentially obtain immediate targets of ABA addition. We believe that using a sensitized background of an ABA auxotroph would yield a set of genes that are very closely regulated by ABA at the transcriptional level. This data set will be used for network analysis of ABA signaling.

2011-10-30 | E-MEXP-3404 | biostudies-arrayexpress

Expression data of T87 Arabidopsis cultured cells in the presence of ABA, SA, JA, ABA+SA, or ABA+JA for 3hr or 24hr

Project description:Plant hormones involved in environmental stresses, namely abscisic acid (ABA), salicylic acid (SA), and jasmonic acid (JA), have been shown to interact with each other in a complex manner. To address the network of the hormone interactions, we have investigated the changes in expression under multiple hormone treatments, ABA+SA and ABA+JA. We chose cultured cells to remove the difference in the response to hormones among developmental cells or tissues. The cells were treated for 3hr and 24hr to see the rapid or transient response and steady-state response. The obtained data indicate that ABA and SA affect antagonistically, but these hormones affected many genes collaboratively. Indeed, according to the microarray data, there are many genes that responded only to ABA+SA. In addition, the ABA+SA responsive genes also responded to ABA+JA. These data suggest that hormone crosstalk is more complicated than expected and that more systematic analysis is required to untangle the hormone crosstalk network.

2011-12-01 | GSE28600 | GEO

Expression data of T87 Arabidopsis cultured cells in the presence of ABA, SA, JA, ABA+SA, or ABA+JA for 3hr or 24hr

2011-12-01 | E-GEOD-28600 | biostudies-arrayexpress

Reciprocal regulation of the TOR kinase and ABA receptor balances plant growth and stress response

Project description:We found that TOR kinase regulates the plant environmental stress responses through phosphorylation at a conserved serine residue of Abscisic acid receptor PYR1/PYLs/RCARs. The phosphorylation inhibits the function of PYLs and prevents the binding of PYLs to abscisic acid and its downstream substrates of PP2C, which blocks the ABA and stress signaling. Our results suggest that plant utilizes this mechanism as a hub to regulate the ABA-mediate stress responses and growth recovery

2017-12-01 | PXD003746 | Pride

dgpp-2 DGPP-regulated genes: Identification of diacylglycerol pyrophosphate-regulated genes in ABA signaling

Project description:rs05-06_dgpp - dgpp - 2. The specific plant phosphorylated form of phosphatidic acid (PA), diacyglycerol pyrophosphate (DGPP), was recently shown to be a second messenger in abscisic acid (ABA) signaling. The aim of the project is to identify among the set of ABA-regulated genes the ones also regulated by DGPP and/or PA.

2008-09-27 | GSE12938 | GEO

Transcriptome analysis of Arabidopsis thaliana G protein subunit mutants in response to abscisic acid (ABA)

Project description:Heterotrimeric G proteins mediate crucial and diverse signaling pathways in eukaryotes. To gain insights into the regulatory modes of the G protein and the co-regulatory modes of the G protein and the stress hormone abscisic acid (ABA), we generated and analyzed gene expression in G protein subunit single and double mutants of the model plant Arabidopsis thaliana. Through a Boolean modeling approach, our analysis reveals novel modes of heterotrimeric G protein action. Keywords: transcriptome analysis; G protein subunit mutants; abscisic acid (ABA)

2010-12-06 | GSE19520 | GEO

Transcriptome of Magnaporthe oryzae treated with SA, ABA and sakuranetin

Project description:To study the effect of plant metabolites on M. oryzae, we selected salicylic acid (SA), abscisic acid (ABA), and sakuranetin to treat M. oryzae grown on the medium with the concentration of 100μM. After 10 days' treatment, the total RNA were extracted and detected the transcriptome.

2023-11-25 | GSE248232 | GEO

RNA-seq analysis of ABA-treated Nicotiana benthamiana seedlings

Project description:Analysis of abscisic acid (ABA) perception and signaling in crops is complicated by the multigenic nature of the PYR/PYL/RCAR ABA receptor family and the reported functional redundancy, which is a formidable challenge, particularly in polyploid plants. Therefore, few molecular genetics studies have been performed in crop species to study the contribution of ABA signaling to balance plant growth and adaptation to the environment. Our data reveal ABA-responsive genes in Nicotiana benthamiana, an allotetraploid biotech crop, and provide a molecular framework for gene expression analyses aimed at optimizing plant growth and environmental adaptation in agriculture. To obtain the genome-wide transcriptional effect of ABA in Nb WT plants, we performed RNA-seq studies as described in experimental procedures. Differential gene expression analysis between mock- and ABA-treated seedlings was done with DESeq2 and genes with an absolute value of log2 fold change (log2FC) > 1 or (log2FC) < -1 and p-adjusted value (padj) < 0.05 were selected

2024-08-13 | GSE255725 | GEO

AELs suppress ABA signaling and responses by phosphorylating and destabilizing ABA receptors PYR/PYLs

Project description:Unveiling the signal transduction of phytohormone abscisic acid (ABA) will be greatly helpful to improve plant responses to stressful environment. ABA signaling is perceived and mediated by multi-member receptor PYR/PYLs, while whose post-translational modification, especially phosphorylation, is largely unknown. Here we demonstrated that Arabidopsis EL1-like (AEL), a casein kinase that regulates various physiological processes, phosphorylates PYR/PYLs and stimulates whose ubiquitination and degradation, leading to the suppressed ABA responses. Arabidopsis ael triple mutants display hypersensitive responses to ABA treatment, which is consistent with the suppressed degradation of PYR/PYL proteins. PYR/PYLs are phosphorylated in vivo and mutation of the conserved AEL-phosphorylation sites results in the reduced phosphorylation, ubiquitination, and degradation of PYR/PYLs, and hence the enhanced ABA responses. Our studies demonstrate the crucial roles of AEL-mediated phosphorylation in regulating the stability and function of PYR/PYLs and provide informative clues for elucidating the functional mechanism of ABA through regulating PYR/PYL receptors.

2022-02-23 | PXD008565 | Pride

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