Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

OsELP3/ELP4, rice Elongator factor complex subunits, epigenetically regulates rice blast resistance

ABSTRACT: Rice blast, caused by Magnaporthe oryzae (M.oryzae), is one of the three most devastating rice diseases, significantly reducing both yield and grain quality. The Elongator complex, first characterized in Arabidopsis thaliana, regulates growth, development, and innate immunity by tightly associating with hyperphosphorylated RNA polymerase II. However, its immunological role in rice remains unexplored. Here, we demonstrate that Elongator plays an essential role in rice blast resistance. The OsELP3 subunit mutant exhibited susceptibility to M.oryzae, while its overexpression increased resistance. OsELP3 interacts with its homologous subunit OsELP4 in the nucleus, and that OsELP4 also positively regulates rice blast resistance. RNA-seq and histone acetylation analyses demonstrated that OsELP3/ELP4 enhances transcriptional activation of key rice blast resistance genes by modulating histone acetylation levels in both the jasmonic acid (JA) signaling pathway (OsAOS1, OsLOX6, OsPROPEP3) and lignin biosynthesis pathway (OsMYB30, OsMYB55, OsMYB110), thereby strengthening plant defense mechanisms against M. oryzae. These findings reveal that OsELP3/ELP4 regulates histone acetylation-mediated defense responses against M.oryzae, providing both theoretical foundations and genetic resources for developing blast-resistant rice cultivars.

ORGANISM(S): Oryza sativa

PROVIDER: GSE333984 | GEO | 2026/06/06

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Comparative proteomic analysis of plasma membrane proteins in rice leaves reveals a vesicle trafficking network in plant immunity provoked by blast fungi

Project description:This project aims to analyze rice plasma membrane proteins related to resistance against rice blast infection. We extracted rice plasma membrane proteins before and after M.oryzae infection for 24h, and then used trypsin to digest and iTRAQ to label the peptides, HPLC-MS/MS was used to seperate and identify peptides. 1.1/0.909 fold change with p-value < 0.05 was used as threshold for differentially expressed proteins. 2,977 proteins were identified and 951 of which were found to be responsive to resistance against M. oryzae. Gene Ontology (GO) enrichment analysis, Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis and protein interaction network showed that plenty of proteins were involved in vesicle trafficking with obvious functional tendencies towards transport, vesicle-mediated transport, secretion, endocytosis and phagosome. 10 DEPs were validated at transcript level, and a SNARE protein named NPSN (novel plant-specific SNARE)13 actively responded to M. oryzae infection, and it contributed to rice blast resistance and mainly located at PM.

2022-05-19 | PXD028545 | Pride

Transcriptome study of rice early response to rice blast fungus

2012-12-25 | GSE41798 | GEO

Positive roles for Osa-miR7695 in regulating defense responses against the rice blast fungus

Project description:MicroRNAs (miRNAs) are small non-coding RNAs that function as post-transcriptional regulators of gene expression in eukaryotes. In rice, miR7695 targets an alternatively spliced transcript of natural resistance-associated macrophage protein 6 (OsNramp6) encoding an iron transporter whose expression is regulated by infection with the rice blast fungus Magnaporthe oryzae. Rice plants grown under high iron supply showed blast resistance, which supports that iron is a factor in controlling blast resistance by still unknown mechanisms. Here, iron accumulated near M. oryzae appressoria, the sites of pathogen entry, and in cells surrounding infected regions of the rice leaf. Activation-tagged MIR7695 rice plants (MIR7695-Ac) exhibited enhanced resistance to M. oryzae infection. RNA-seq analysis revealed that blast resistance in MIR7695-Ac plants was associated with strong induction of defense-related genes, including pathogenesis-related and diterpenoid biosynthetic genes. Levels of phytoalexins during pathogen infection were higher in MIR7695-Ac than wild-type plants. Early phytoalexin biosynthetic genes, OsCPS2 and OsCSP4, were highly upregulated in rice plants grown under high iron supply. Our data indicate that miR7695 positively regulates rice immunity while establishing links between defense and iron signaling in rice. MiR7695-mediated regulation of OsNramp6 has great potential for the development of strategies to control rice blast disease.

2020-01-08 | GSE122258 | GEO

OsELP3/ELP4, rice Elongator factor complex subunits, epigenetically regulates rice blast resistance

Project description:OsELP3/ELP4, rice Elongator factor complex subunits, epigenetically regulates rice blast resistance

| PRJNA1473330 | ENA

Transcriptome study of rice early response to rice blast fungus

Project description:Rice blast disease is a major threat to rice production worldwide, but the mechanisms underlying rice resistance to the causal agent Magnaporthe oryzae remain elusive. In this whole-genome transcriptome study of rice early defense response to M. oryzae, we applied Affymetrix Rice Genome Genechip to compare the compatible and incompatible rice-M. oryzae interactions in 24 hours post-inoculation. Leaf samples were harvested from three biological replicates of fungal- and mock-inoculated seedlings at 24 hours post-inoculation, from which RNA were extracted and analyzed with Genechip Rice Genome Array.

2012-12-25 | E-GEOD-41798 | biostudies-arrayexpress

Label-free quantitative proteomic analysis for identification of in-planta Magnaporthe oryzae proteins induced cell death

Project description:The rice blast disease caused by Magnaporthe oryzae (M.oryzae) is one of the most important disease in cultivated rice (Oryza sativa L.) results in extensive loss of productivity worldwide. Therefore, here we utilized the label-free quantitative proteomic approach to identify the novel M. oryzae effectors. A total of 114 were significantly modulated M. oryzae proteins derived from infected rice leaves. Among them, twenty-nine proteins were predicted as secreted proteins by SignalP 4.0. In addition, functional annotation proteins revealed that five proteins were mainly associated with hydrolase family. Consequently, five putative effector genes were cloned into a plant expression vector and fused with MYC tag in the C-terminal. Finally, we found that three in-planta M.oryzae hydrolase proteins were induced cell death after Agrobacterium tumefaciens-mediated transient expression in Nicotiana benthamiana (N.benthamiana). MGP1 (endo-1,4-beta-xylanase) and MGP4 (cellulose-binding protein) were localized in extracellular. Otherwise, MGP5 (cutinase) localized in intracellular space induced cell death. Thus, our results suggest that in-planta M. oryzae hydrolase proteins may play a key role in innate immunity via PAMP (Pathogen-Associated Molecular Pattern) in rice.

2022-04-04 | PXD026316 | Pride

OsWRKY39 regulates phenylpropanoid metabolic reprogramming to orchestrate rice immunity against Magnaporthe oryzae

Project description:<p>Magnaporthe oryzae threatens global rice production, but master regulators coordinating immunity, metabolism, and growth remain elusive. Here, we identify OsWRKY39 as a central hub integrating blast resistance, phenylpropanoid metabolism, hormone homeostasis, and growth-defense trade-offs, distinct from OsWRKY45 (only activates diterpenoid phytoalexin biosynthesis). OsWRKY39 overexpression (OE) enhances blast resistance, while knockout (ko) lines are susceptible. DAP-seq/EMSA show OsWRKY39 directly targets W-box in promoters of OsPAL7, OsCKX2, OsJAZ9, and OsWRKY70. DLR assays reveal OsWRKY39 represses OsCKX2 and activates OsARF16 promoters. Transcriptomic/metabolomic analyses show OE plants reprogram phenylpropanoid metabolism to accumulate antimicrobial metabolites upon infection, whereas ko lines lose this control. OsWRKY39 elevates cytokinins (e.g., DHZR) to boost ATP/NADPH, suppresses excessive JA via OsJAZ9, and alleviates growth-resistance tradeoff via cytokinin-auxin crosstalk. BiFC confirms JA attenuates OsJAZ9-OsMYC2 interaction. Co-IP/phosphorylation assays show OsWRKY39 interacts with and is phosphorylated by OsMPK13. Our findings establish OsWRKY39 as a master regulator orchestrating rice immunity-metabolism-growth networks, minimizing growth costs and providing targets for high-yield, blast-resistant cereals.</p>

2025-12-05 | MTBLS13460 | MetaboLights

Expression data from susceptible rice cultivar innoculated with Magnaporthe oryzae isolate (Mo-ei-11)

Project description:The molecular mechanisms underlying infection of rice host system with compatible M. oryzae isolates at 12, 24, 48 and 72 hours post innoculation (hpi) are investigated in the study. In addition, the identification of highly commonly upregulated genes by both isolates of M. oryzae may be useful candidates for M.oryzae inducible promoter characterization We used microarrays to detail the global programme of gene expression underlying M. oryzae infection during compatible host-pathogen interaction

2018-02-28 | GSE95394 | GEO

Data-independent acquisition (DIA)-MS analysis for identification of Magnaporthe oryzae secreted protein induces cell death and triggers defense responses in rice

Project description:The rice blast disease, caused by Magnaporthe oryzae , devastates cultivated rice (Oryza sativa L.), resulting in extensive global crop loss. We employed a label-free quantitative proteomics approach to discover novel proteins associated with M. oryzae pathogenicity and rice defense. We identified 990 significantly modulated proteins in rice leaves including various pattern recognition receptors (PRRs) and pathogenesis-related (PR) proteins that were induced in response to M. oryzae inoculation. Additionally, 123 M. oryzae proteins were also identified and screened for their cell death-inducing activity by an in-silico approach. Among these, we found a novel protein MoXYL1 (endo-1,4-beta-xylanase) protein, which induces cell death in Nicotiana benthamiana leaves. Transgenic rice plants (PDUF26::MoXYL1) expressing MoXYL1 derived by rice domain of unknown function protein 26 (DUF26) promoter exhibited resistance against the M. oryzae and Cochliobolus miyabeanus and enhanced expression of pathogen-responsive genes and hormone-related genes. Furthermore, the application of data-independent acquisition (DIA) mass spectrometry (MS)-based proteomics on these transgenic rice plants revealed 1,833 significantly modulated proteins in response to M. oryzae, with 219 and 410 proteins responsive to MoXYL1 and M. oryzae, respectively. Based on these results, we propose a signaling network model induced by MoXYL1 and M. oryzae. In summary, our findings highlight the crucial role of MoXYL1 in rice innate immunity against M. oryzae and its potential to enhance rice disease resistance.

2024-03-28 | PXD045543 | Pride

Global, phosphoproteome and acetylome of rice genotypes against Magnaporthe oryzae infection

Project description:In this study, we examine the complex rice-Magnaporthe oryzae pathosystem. Specifically, we use quantitative proteomics to compare the proteome, phosphoproteome, and acetylome of two rice genotypes that differ in resistance to M. oryzae.

2025-11-04 | MSV000099743 | MassIVE

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data