Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1099158 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Insect stress modulates phenylpropanoid and phytohormone signaling to impair Sorghum defense responses in COMT bmr12 mutant at 10dpi
| PRJNA1120573 | ENA
Project description:Schengen-pathway modulates the phenylpropanoid pathway and induces defense-related mechanisms
2020-11-01 | GSE158809 | GEO
Project description:Systemin was identified in 1991 as the first plant signaling peptide, and is required for defense against insect herbivores and necrotrophic pathogens in tomato plants. Systemin was first conceived as a hormone-like, long-distance messenger mediating the activation of systemic defense responses far from the site of insect attack. It was later shown to rather act as a phytocytokine, amplifying the local wound response for production of downstream signals resulting in defense gene activation in distal tissues. Systemin perception and signaling rely on the systemin receptor SYR1. However, SYR1-dependent signaling, and how systemin signaling differs from other peptide-mediated signaling pathways, is largely unknown. Here we used a Solanum peruvianum suspension cell culture to analyze phospho-proteomic responses triggered by 10 nM systemin. Samples were analyzed in a time series of 0, 1, 2, 5, 15, and 45 min after systemin treatment. To identify systemin-specific events a mutant cell culture lacking the SYR1 systemin receptor was analyzed in parallel. The experiment was performed in six biological replicates. Samples numbering scheme: Genotype_TreatmentTimeReplicate(e.g.,WT_S53 corresponding to wild-type cells treated with systemin, for 5min, the 3rd biological replicates)
2025-06-17 | PXD054229 | Pride
Project description:Piriformospora indica, an endophytic fungus of Sebacinales, colonizes the roots of many plant species including Arabidopsis thaliana. The symbiotic interaction promotes plant per-formance, growth and resistance/tolerance against abiotic and biotic stress. We demonstrate that exudated compounds from the fungus activate stress and defense responses in the Arabidopsis roots and shoots before the two partners are in physical contact. They induce stomata closure, stimulate reactive oxygen species (ROS) production, stress-related phytohormone accumulation and activate defense and stress genes in the roots and/or shoots. Once a physical contact is established, the stomata re-open, ROS and phytohormone levels decline, and the gene expression pattern indicates a shift from defense to mutualistic interaction. We propose that exudated compounds from P. indica induce stress and defense responses in the host. Root colonization results in the downregulation of defense responses and the activation of genes involved in promoting plant growth, metabolism and performance.
2016-05-30 | GSE58771 | GEO
Project description:Arabidopsis thaliana plants fend off insect attack by constitutive and inducible production of toxic metabolites such as glucosinolates (GS). A triple mutant lacking MYC2, MYC3, and MYC4, three basic helix-loop-helix transcription factors that are known to additively control jasmonate-related defense responses, is highly susceptible to insect herbivory. In this study, we performed a whole-genome microarray analysis on three-week-old plants and compared wild-type (Col-0) and myc2myc3myc4 plants in control conditions (no treatment). Myc234 was shown to have a highly reduced expression of GS biosynthesis genes.
2013-08-27 | E-MTAB-1777 | biostudies-arrayexpress
Project description:MYC2 is a central node controlling the crosstalk between JA and other phytohormone signalling pathways and regulating responses to light and circadian clock. We hypothesized that this transcription factor might coordinate prioritization of microbiota-induced growth over defense under suboptimal light conditions
2020-10-27 | GSE160115 | GEO
Project description:Piriformospora indica, an endophytic fungus of Sebacinales, colonizes the roots of many plant species including Arabidopsis thaliana. The symbiotic interaction promotes plant per-formance, growth and resistance/tolerance against abiotic and biotic stress. We demonstrate that exudated compounds from the fungus activate stress and defense responses in the Arabidopsis roots and shoots before the two partners are in physical contact. They induce stomata closure, stimulate reactive oxygen species (ROS) production, stress-related phytohormone accumulation and activate defense and stress genes in the roots and/or shoots. Once a physical contact is established, the stomata re-open, ROS and phytohormone levels decline, and the gene expression pattern indicates a shift from defense to mutualistic interaction. We propose that exudated compounds from P. indica induce stress and defense responses in the host. Root colonization results in the downregulation of defense responses and the activation of genes involved in promoting plant growth, metabolism and performance. Twelve day-old (48 h cold treatment and 10 days of illumination) Arabidopsis seedlings of equal sizes were selected for co-cultivation experiments. They were transferred to PNM plates with a nylone membrane on the top (Johnson et al. 2011) and exposed to a fungal plug 5 mm in diameter or a KM plug of the same size without fungal hyphae (control). The plugs were placed 3 cm away from the closest root part . The light intensity (80 ± 5 μmol m-2 sec-1) was checked every third day to ensure that both P. indica- and mock-treated seedlings receive equal amounts of light.
2016-05-30 | E-GEOD-58771 | biostudies-arrayexpress
Project description:Next-generation sequencing (NGS)-derived transcriptomic profiling was carried out to compare the transcriptomic changes mediated by COMT knockout in U87 cells. We found significant enrichment of gene signatures involving IFNa/b signaling in COMT-KO U87 cells compared to control cells. Our analysis also demonstrated that COMT deficiency interferes with mitochondrial functions and induces the expression of genes associated with the anti-viral RNA sensing pathway.
2023-10-12 | GSE237053 | GEO
Project description:A comparative transcriptomic analysis of the responses arising 24 hours after infection of the susceptible T. aestivum variety ‘Fielder’, by Fg with co-application of either abscisic acid (ABA), gibberellic acid (GA) or the ABA-signaling inhibitor AS6, compared to stand-alone treatments is reported. Relevance of transcriptomic responses were assessed by differential expression feature evaluations (DEFE), highlighting that co-applied GA elicits a relatively strong opposing influence on Fg modulated genes, while co-applied ABA elicits similar responses to Fg. Co-applied AS6 elicited an opposing effect on gene regulation compared to co-applied ABA, and based on its lack of biological effect, was instrumental in reducing the identity of genes relevant to eliciting ABA and GA effects, to a subset of genes, largely defined within four DEFE patterns. A more targeted investigation of the impact of the co-applied conditions with respect to plant phytohormone biosynthesis and signaling pathways, correlated with select phytohormone profiles, confirmed activation of the ABA and GA pathways. Further analyses highlighted a novel interaction, potentially representing cross-talk, between co-applied ABA and the brassinosteroid signaling pathway. Additional responses within the classical defense hormone pathways as well as auxin and cytokinin pathways were found to correlate with expected defense responses. Togther these results yield insight into a range of mechanisms potentially underlying the observed contributions of ABA and GA to wheat susceptibility and resistance respectively to Fg, raising novel hypotheses for consideration in the development of FHB resistant wheat lines and agronomic practices in the longer term.
2021-10-01 | GSE137895 | GEO