Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

Next Generation Sequencing of tomato WT, M82 and pro∆GRAS mutant treated with Gibberellin

ABSTRACT: The goal of this study was to search for DELLA-independent GA-regulated genes in tomato. RNA deep sequencing (RNA-seq) was performed to GA-treated M82 and pro∆GRAS mutant. Using a two fold increased or decreased cutoff we identified 81 GA-up regulated and 15 GA-down regulated genes, from which five genes were DELLA-independent. M82 and pro∆GRAS seedlings were treated with Paclobutrazol (10mg/l) once a day for three days followed by a single GA3 application (100 µM). Three hours after the GA treatment, young leaves were collected and RNA was extracted for Illumina HiSeq 2500 sequencing. A total of eight samples were analyzed, each treatment had two biological replicates.

ORGANISM(S): Solanum lycopersicum

SUBMITTER: Gilgi Friedlander

PROVIDER: E-GEOD-68018 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Uncovering DELLA-Independent Gibberellin Responses by Characterizing New Tomato procera Mutants.

Livne Sivan S Lor Vai S VS Nir Ido I Eliaz Natanella N Aharoni Asaph A Olszewski Neil E NE Eshed Yuval Y Weiss David D

The Plant cell 20150602 6

Gibberellin (GA) regulates plant development primarily by triggering the degradation/deactivation of the DELLA proteins. However, it remains unclear whether all GA responses are regulated by DELLAs. Tomato (Solanum lycopersicum) has a single DELLA gene named PROCERA (PRO), and its recessive pro allele exhibits constitutive GA activity but retains responsiveness to external GA. In the loss-of-function mutant pro(ΔGRAS), all examined GA developmental responses were considerably enhanced relative t ...[more]

PMID: 26036254

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Project description:Plants have evolved a two-layered immune system that mainly includes pattern-triggered immunity (PTI) and effector-triggered immunity (ETI) against pathogen attack. PTI and ETI signaling are functionally linked, but also distinct due to specific perceived ligands and activation modes. Unraveling how PTI and ETI coordinate the immune responses against pathogens is crucial for understanding the regulatory mechanisms in plant immunity. To better understand the protein profiling and phosphorylation events during PTI and ETI, we employed integrated whole proteome and phosphoproteome analyses in the tomato-Pst pathosystem with different Pst DC3000 mutants that allow dissection of different layers of immune responses. A total of 225 proteins and 79 phosphopeptides were differentially regulated in tomato leaves during immune responses. Our proteomics results indicate that some overlapping immune responses are triggered by both PTI and ETI-inducing treatment, and ETI response is more robust than PTI response for most proteins. The change patterns of protein abundance and phosphorylation revealed some key regulators involved in Ca2+ signaling, mitogen-activated protein kinase cascades, and reversible protein phosphorylation, ROS and redox homeostasis, direct defense, transcription machinery and protein turnover, cell wall remodeling, hormone biosynthesis, as well as immune molecule accumulation, are modulated during PTI and/or ETI, suggesting their common or specific roles in plant immune responses. However, NAC domain protein and lipid particle serine esterase, two PTI-specific genes from previous transcriptomic work, have not been detected as differentially regulated in our proteomic analysis, and they were proved to be not PTI-specific inducible and therefore cannot be used as PTI-reporters through “overlapping circle” pattern assay. These results provide insights into the fine-tuned regulatory mechanisms between PTI and ETI in-Pst pathosystem, which will springboard further investigations into the sophisticated mechanisms in plant immunity.

Dataset Information

Next Generation Sequencing of tomato WT, M82 and pro∆GRAS mutant treated with Gibberellin

Publications

Uncovering DELLA-Independent Gibberellin Responses by Characterizing New Tomato procera Mutants.

Similar Datasets

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