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

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

PROVIDER: PRJNA300873 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR2889700_1.fastq.gz	Fastqsanger.gz
	SRR2889700_2.fastq.gz	Fastqsanger.gz
	SRR2889701_1.fastq.gz	Fastqsanger.gz
	SRR2889701_2.fastq.gz	Fastqsanger.gz
	SRR2889697_1.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 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

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

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

Project description:This SuperSeries is composed of the SubSeries listed below.

2015-12-31 | GSE74587 | GEO

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

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2015-12-31 | E-GEOD-74587 | biostudies-arrayexpress

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

TMK-based cell surface auxin signaling activates cell wall acidification in Arabidopsis

Project description:The phytohormone auxin controls a myriad of processes in plants, at least in part through its regulation of cell expansion. The "acid growth hypothesis" has been proposed to explain auxin-stimulated cell expansion for five decades, but the mechanism underlying auxin-induced cell wall acidification is poorly characterized. Auxin induces the phosphorylation and activation of the plasma membrane (PM) H+-ATPase that pumps protons into the apoplast, yet how auxin activates its phosphorylation remains elusive. Here, we show that the transmembrane kinase (TMK) auxin signaling proteins interact with PM H+-ATPases and activate their phosphorylation to promote cell wall acidification and hypocotyl cell elongation in Arabidopsis. Auxin induced TMK's interaction with H+-ATPase on the plasma membrane within 1-2 minutes as well as TMK-dependent phosphorylation of the penultimate Thr residue. Genetic, biochemical, and molecular evidence demonstrates that TMKs directly phosphorylate PM H+-ATPase and are required for auxin-induced PM H+-ATPase activation, apoplastic acidification, and cell expansion. Thus, our findings reveal a crucial connection between auxin and PM H+-ATPase activation in regulating apoplastic pH changes and cell expansion via TMK-based cell surface auxin signaling.

2021-07-14 | MSV000087822 | MassIVE

Arabidopsis thaliana

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

| PRJNA300877 | ENA

Arabidopsis thaliana

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

| PRJNA300876 | ENA

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