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Arabidopsis thaliana

ABSTRACT: Auxin-independent NAC pathway regulates cell wall metabolism in response to explant-specific wounding during regeneration in Arabidopsis I

PROVIDER: PRJNA300877 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR2889697_1.fastq.gz	Fastqsanger.gz
	SRR2889697_2.fastq.gz	Fastqsanger.gz
	SRR2889698_1.fastq.gz	Fastqsanger.gz
	SRR2889698_2.fastq.gz	Fastqsanger.gz

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Auxin-independent NAC pathway regulates cell wall metabolism in response to explant-specific wounding during regeneration in Arabidopsis

Project description:Auxin-independent NAC pathway regulates cell wall metabolism in response to explant-specific wounding during regeneration in Arabidopsis

| PRJNA300873 | ENA

Arabidopsis thaliana

Project description:Auxin-independent NAC pathway regulates cell wall metabolism in response to explant-specific wounding during regeneration in Arabidopsis II

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Auxin-independent NAC pathway regulates cell wall metabolism in response to explant-specific wounding during regeneration in Arabidopsis II

Project description:In this study, through a genome-wide transcriptome analysis of wounding in the leaf explant, we identified NAC1 (petunia NAM and Arabidopsis ATAF1, ATAF2, and CUC2) family transcription factor gene that acts in response to wounding and functions in regulation of cell wall metabolism.

2015-12-31 | GSE74585 | GEO

Auxin-independent NAC pathway regulates cell wall metabolism in response to explant-specific wounding during regeneration in Arabidopsis I

2015-12-31 | GSE74584 | GEO

Cell-wall damage activates DOF transcription factors to promote wound healing and tissue regeneration in Arabidopsis thaliana

Project description:Wound healing is a fundamental property of plants and animals that requires recognition of cellular damage to initiate regeneration. In plants, wounding activates a defense response via the production of jasmonic acid and a regeneration response via the hormone auxin and several ethylene response factor (ERF) and NAC domain-containing protein (ANAC) transcription factors. To better understand how plants recognize damage and initiate healing, we searched for factors upregulated during the horticulturally relevant process of plant grafting and found four related DNA binding with one finger (DOF) transcription factors, HIGH CAMBIAL ACTIVITY2 (HCA2), TARGET OF MONOPTEROS6 (TMO6), DOF2.1, and DOF6, whose expression rapidly activated at the Arabidopsis graft junction. Grafting or wounding a quadruple hca2, tmo6, dof2.1, dof6 mutant inhibited vascular and cell-wall-related gene expression. Furthermore, the quadruple dof mutant reduced callus formation, tissue attachment, vascular regeneration, and pectin methylesterification in response to wounding. We also found that activation of DOF gene expression after wounding required auxin, but hormone treatment alone was insufficient for their induction. However, modifying cell walls by enzymatic digestion of cellulose or pectin greatly enhanced TMO6 and HCA2 expression, whereas genetic modifications to the pectin or cellulose matrix using the PECTIN METHYLESTERASE INHIBITOR5 overexpression line or korrigan1 mutant altered TMO6 and HCA2 expression. Changes to the cellulose or pectin matrix were also sufficient to activate the wound-associated ERF115 and ANAC096 transcription factors, suggesting that cell-wall damage represents a common mechanism for wound perception and the promotion of tissue regeneration.

2022-03-23 | GSE179283 | GEO

Auxin-independent NAC pathway regulates cell wall metabolism in response to explant-specific wounding during regeneration in Arabidopsis I

2015-12-31 | E-GEOD-74584 | biostudies-arrayexpress

Auxin-independent NAC pathway regulates cell wall metabolism in response to explant-specific wounding during regeneration in Arabidopsis II

2015-12-31 | E-GEOD-74585 | biostudies-arrayexpress

Histone H3K4 methyltransferase ATX1 positively regulates secondary wall biosynthesis in interfascicular fibers in Arabidopsis

Project description:Secondary wall thickening in the sclerenchyma cells is strictly controlled by a complex network of transcription factors in vascular plant. However, little is known about the epigenetic mechanism regulating secondary cell wall biosynthesis. Genome-wide analysis revealed that the up-regulation of genes involved in secondary wall formation during stem development is largely coordinated by increasing level of H3K4 tri-methylation. In this study, we identified that ARABIDOPSIS HOMOLOG of TRITHORAX1 (ATX1), a H3K4-histone methyltransferase, positively regulates secondary wall deposition mainly through activating the expression of secondary wall NAC master switch genes, SECONDARY WALL-ASSOCIATED NAC DOMAIN PROTEIN1 (SND1) and NAC SECONDARY WALL THICKENING PROMOTING FACTOR1 (NST1).

2020-11-29 | GSE153705 | GEO

The Identification of FERONIA‑interacting proteins in Arabidopsis thaliana via mass spectrometry

Project description:FERONIA (FER) is a plasma membrane-localized receptor-like kinase (RLK) that belongs to the Catharantus roseus RLK1-like (CrRLK1L) subfamily. FER serves as a potential cell wall sensor that regulates multiple phytohormones, including ABA, JA, SA, BR, auxin, and ethyl, but the underlying regulatory mechanisms are still largely unknown. To further understand how FER regulates downstream signaling pathway, we performed FER-interacting proteins via immunoprecipitation-mass spectrometry (IP-MS) assay generated from FER-GFP transgenic plants.

2024-09-14 | PXD047596 | Pride

The wound activated ERF15 transcription factor drives Marchantia polymorpha regeneration by activating an oxylipin biosynthesis feedback loop

Project description:The regenerative potential in response to wounding varies largely along species. Within the plant lineage, the liverwort Marchantia polymorpha displays an extraordinary regeneration capacity. However, its molecular pathways controlling the initial regeneration response post wounding is currently unknown. In Arabidopsis, the transcription factor ETHYLENE RESPONSE FACTOR 109 (ERF109) plays an essential role in tissue regeneration. Here, we demonstrate that the Marchantia MpERF15 transcription factor gene represents a functional ortholog of ERF109, being instantly activated following wounding and being essential for gemmaling regeneration following tissue incision. MpERF15 is a downstream target of the MpCOI1 oxylipin receptor, but differently from Arabidopsis ERF109 its wound responsiveness is COI1 independent. At the other hand, and again differently from ERF109, MpERF15 drives oxylipin biosynthesis by controlling the upstream MpAOS2 and MpAOC biosynthesis genes. The resulting rise in the oxylipin dnOPDA levels results in an increase in gemma cell number and apical notch organogenesis, giving rise to highly disorganized and compact thalli. Our data pinpoint MpERF15 as a key factor activating an oxylipin biosynthesis amplification loop following wounding that eventually results in re-activation of cell division and regeneration, and suggest that the genetic networks controlling oxylipin biosynthesis in response to wounding might have been reshuffled over evolution.

2022-02-19 | GSE196912 | GEO

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