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Genome-wide study reveals the function of transcription factor TREE1 in ethylene signaling

ABSTRACT: Genome-wide study reveals the function of transcription factor TREE1 in ethylene signaling

PROVIDER: PRJNA660407 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR12552876_1.fastq.gz	Fastqsanger.gz
	SRR12552876_2.fastq.gz	Fastqsanger.gz
	SRR12552877_1.fastq.gz	Fastqsanger.gz
	SRR12552877_2.fastq.gz	Fastqsanger.gz
	SRR12552878_1.fastq.gz	Fastqsanger.gz

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Genome-wide study reveals the function of transcription factor TREE1 in ethylene signaling

Project description:Purpose: Next-generation sequencing (NGS) has been used to study the gene expression in Arabidopsis seedlings under air and ethylene treatment. The goal of this study is to uncover how TREE1 and its homologous gene DAZ3 are involved into gene expression regulation in response to ethylene.

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Genome-wide study reveals dual function of histone binding protein ENAP1 in ethylene signaling

Project description:Purpose: Next-generation sequencing (NGS) has been used to study the gene expression in different samples under air and ethylene treatment. The goal of this study is to uncover how ENAP1 and H3K23Ac dynamically coordinate with EIN3 to regulate gene expression in response to ethylene.

2017-09-07 | GSE83214 | GEO

Genome-wide study reveals dual function of histone binding protein ENAP1 in ethylene signaling in ein3eil1 mutant plants

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Arabidopsis Ethylene Response Factor 19 : 35S::ERF19

Project description:Arabidopsis Ethylene Response Factor 19 : 35S::ERF19

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Phosphorylation-Regulated Cleavage of ETHYLENE INSENSITIVE2 Mediates Hormone Signaling from the Endoplasmic Reticulum to the Nucleus

Project description:Ethylene gas is essential for many developmental processes and stress responses in plants. ETHYLENE INSENSITIVE2 (EIN2), an NRAMP-homologous integral membrane protein, plays an essential role in ethylene signaling but its function remains enigmatic. Here we report that phosphorylation-regulated proteolytic processing of EIN2 triggers its endoplasmic reticulum (ER)-nucleus translocation, which is essential for hormone signaling and response in Arabidopsis. Without ethylene, or in hormone receptors mutants, ER-tethered EIN2 shows CTR1 kinase-dependent phosphorylation. Ethylene exposure triggers dephosphorylation and proteolytic cleavage, resulting in rapid nuclear translocation of a carboxyl-terminal EIN2 fragment (C’). Plants containing mutations that mimic EIN2 dephosphorylation, or inactivate CTR1, show constitutive cleavage and nuclear localization of EIN2-C’, and EIN3/EIL1-dependent activation of ethylene responses. These findings uncover a mechanism of subcellular communication whereby ethylene gas stimulates rapid phosphorylation-dependent cleavage and nuclear movement of the EIN2-C’ peptide, thus linking hormone perception and signaling components located in the ER with nuclear-localized transcriptional regulators.

2012-10-22 | E-MTAB-4360 | biostudies-arrayexpress

Flg22 regulates MAP kinase 6 interaction with an ethylene response factor substrate via ethylene

Project description:Despite their importance, plant MAP kinase targets are still poorly elucidated. Here, the specific in vivo interaction of an ethylene response factor (ERF104) with the Arabidopsis MAP kinase, MPK6, is shown by fluorescence resonance energy transfer. The interaction, which is lost within minutes after treatment with the flagellin-derived flg22 peptide, is dependent on both MPK6 kinase activity and rapid ethylene signaling initiated downstream of MPK6 activation. ERF104 is an MPK6 substrate and phosphorylation site mutations affected its stability. ERF104 activates promoters with GCC elements. This was evident from microarray data of overexpressing transgenic plants, where promoters of up regulated genes contain GCC motifs and chromatin immunoprecipitation showing ERF104 association with PDF1.2 promoter. The ERF104 overexpressor did not affect biotrophic bacteria proliferation but was more susceptible to necrotrophic Botrytis cinerea. Microarray performed with erf104 or mpk6 revealed only a limited number of flg22-induced genes that require these elements - possibly as a result of functional redundancies. Thus, ERF104 phosphorylation by MPK6, in concert with ethylene signaling induced by pathogen-derived molecules, modulates defense in Arabidopsis.

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ABA and ethylene signaling crosstalk

Project description:Our current study showed that the ABA and ethylene signal transduction pathways function in parallel and have antagonistic interaction during seed germination and early seedling growth. To further address the possible mechanism by which these two hormones crosstalk, microarray analysis was performed. By microarray analysis we found that an ACC oxidase (ACO) was significantly up-regulated in the aba2 mutant, whereas the 9-CIS-EPOXYCAROTENOID DIOXYGENASE (NCED3) gene in ein2, and both the ABSCISIC ACID INSENSITIVE1 (ABI1) and cytochrome P450, family 707, subfamily A, polypeptide 2 (CYP707A2) genes in etr1-1 were up- and down-regulated, respectively. These data further suggest that ABA and ethylene may control the hormonal biosynthesis, catabolism or signaling of each other to enhance their antagonistic effects upon seed germination and early seedling growth.

2009-03-31 | GSE12715 | GEO

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Project description:In tomato, there are seven ethylene receptors, ETR1, ETR2, ETR3, ETR4, ETR5, ETR6, and ETR7. In our laboratory, we have ETR3, ETR4, and ETR7, loss-of-function single mutants, in this study we compare the pollen tube length of ETR mutant KO with WT and NR (never rip) gain of function mutant. We found the pollen tube length in ETR3, ETR4, and ETR7 (KO) was more than WT; on the other hand, NR was less than WT, and the treatment by ethylene (ET) increase the length of pollen tube in all ETRs KO and WT but not in NR. The treatment by MCP-1 decreases the pollen tube length slightly in WT, 20% in ETR (KO) and no effect in NR. In conclusion, our results suggest that ethylene receptors (ETRs) in the active state inhibit pollen tube growth; therefore the ethylene is an essential factor for male gametophyte growth.

2020-10-23 | E-MTAB-9660 | biostudies-arrayexpress

Ethylene induced phosphorylation of CBP20 is involved in root growth [RNA-seq]

Project description:We report that CBP20 phosphorylation can regulate root growth in ethylene. We examined the gene expression in roots and shoots of wild type (Col) and cbp20 mutant (in Col background). Ethylene is one of the most essential hormones for plant developmental processes and stress responses. EIN2 is a key factor in ethylene signaling pathway and its function is regulated by phosphorylation. However, the phosphorylation regulation in the ethylene signaling pathway is largely unknown. Here we report the phosphorylation of CBP20 is regulated by ethylene, and the phosphorylation is involved in root elongation. The constitutive phosphorylation format of CBP20 rescues the cbp20 root ethylene hyposensitive phenotype, while the constitutive de-phosphorylation format of CBP20 is unable to rescue the root phenotype of cbp20 in response to ethylene. Genome wide study on ethylene regulated gene expression and microRNA expression in the roots and shoots of both Col and cbp20, together with the result of genetics validation suggest that ethylene induced phosphorylation of CBP20 is involved in root growth and one pathway is through the regulation of microRNAs and their target genes in roots.

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