Integration of systemic signals in plants
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ABSTRACT:
PROVIDER: PRJNA575019 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Transcriptome profiling (RNA-seq) of local and systemic tissue of Arabidopsis Col plants exposed to a local treatment of high light, heat stress and a combination of high light and heat stress on the same leafs or in different leaves
2020-06-29 | GSE138196 | GEO
Project description:Control of root thermomorphogenesis by systemic and local regulatory signals
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Project description:Innate immune responses in animals and plants involve receptors that recognize microbe-associated molecules. In animals, activation of the Toll-NFkappaB pathway involves the recruitment of a series of TIR-domain containing adaptors that activate NFkappaB transcription factors. Plants contain many TIR modules as part of a large multi-gene TIR-NBS-LRR R-gene innate immune defense system as well as TIR-motif containing genes that lack LRR and whose functions are unknown. Molecular interactions for any TIR module signaling pathway has yet to be shown. Here we investigated the functional role of a TIR module linked to a lectin-containing motif, TIR-Lec1 (TLec1). We show that TLec1 acts as a positive modulator of the systemic JA-dependent wound response. TLec1 transcripts are rapidly induced in a JA-independent pathway and insertional mutants that TLec1 transcripts fail to show the full systemic wound response
2013-05-07 | GSE13895 | GEO
Project description:Control of root thermomorphogenesis by systemic and local regulatory signals (18h RNA-seq)
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Project description:Control of root thermomorphogenesis by systemic and local regulatory signals (4h RNA-seq)
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Project description:Transcriptional integration of separated and simultaneous microbial and nutritional signals by the intestinal epithelium
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Project description:wt plants (ws) and opr3 mutant plants were wounded Half of the rosette leaves of 6 weeks old plants were wounded by clamping a tweezers across the midvein. RNA was extracted from control and systemic leaves 2 h after wounding, and was subject to affymetrix ATH1 chip. one repeat: wt control, wt systemic wounding, opr3 control, opr3 systemic wounding
2010-12-01 | E-GEOD-14332 | biostudies-arrayexpress
Project description:Leaf-to-leaf, systemic immune signaling known as systemic acquired resistance (SAR) is poorly understood in monocotyledonous plants. Here, we characterize systemic immunity in barley (Hordeum vulgare) triggered after primary leaf infection with either Pseudomonas syringae pathovar japonica (Psj) or Xanthomonas translucens pathovar cerealis (Xtc). Both pathogens induced resistance in systemic, uninfected leaves against a subsequent challenge infection with Xtc. In contrast to SAR in Arabidopsis thaliana, systemic immunity in barley was not associated with NONEXPRESSOR OF PATHOGENESIS-RELATED GENES1 or the local or systemic accumulation of salicylic acid (SA). Instead, we documented a moderate local but not systemic induction of abscisic acid (ABA) after infection of leaves with Psj. In contrast to SA or its functional analog benzothiadiazole, local applications of the jasmonic acid methyl ester or ABA triggered systemic immunity to Xtc. RNA-seq analysis of local and systemic transcript accumulation revealed unique gene expression changes in response to both Psj and Xtc and a clear separation of local from systemic responses. The systemic response appeared relatively modest and quantitative RT-PCR associated systemic immunity with the local and systemic induction of two WRKY and two ETHYLENE RESPONSIVE FACTOR-like transcription factors. Systemic immunity against Xtc was further associated with transcriptional changes after a secondary/systemic Xtc challenge infection; these changes were dependent on the primary treatment. Taken together, bacteria-induced systemic immunity in barley may be mediated in part by WRKY and ERF-like transcription factors possibly facilitating transcriptional reprogramming to potentiate immunity.
2014-11-24 | E-MTAB-3063 | biostudies-arrayexpress
Project description:Transcriptional profiling of Marchantia polymorpha Takaragaike-1 wild-type genotype, in samples from intact plants (NW, non-wounded) and from wounded plants, both in locally damaged tissue (W, wounded) and in systemic non-wounded tissues of the damaged plants (SD, systemic tissues of damaged plants)
2024-04-22 | GSE250354 | GEO
Project description:Plants uptake nitrogen (N) from the soil mainly in the form of nitrate. However, nitrate is often distributed heterogeneously in natural soil. Plants, therefore, have a systemic long-distance signaling mechanism by which N-starvation on one side of the root leads to a compensatory N uptake on the other N-rich side. This systemic N acquisition response is triggered by a root-to-shoot mobile peptide hormone, C-terminally Encoded Peptide (CEP), originating from the N-starved roots, but the molecular nature of the descending shoot-to-root signal remains elusive. Here, we show that phloem-specific polypeptides that are induced in leaves upon perception of root-derived CEP act as descending long-distance mobile signals translocated to each root. These shoot-derived polypeptides, which we named CEP Downstream 1 (CEPD1) and CEPD2, upregulate the expression of the nitrate transporter gene NRT2.1 in roots specifically when nitrate is present in the rhizosphere. Arabidopsis plants deficient in this pathway show impaired systemic N-acquisition response accompanied with N-deficiency symptoms. These fundamental mechanistic insights should provide a conceptual framework for understanding systemic nutrient acquisition responses in plants. We prepared total RNA from vascular tissues of wild type, CEP1-treated wild type, and cepr1-1 mutant, and used a microarray analysis to identify genes specifically induced by CEP1.
2017-04-06 | GSE94161 | GEO