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Oryza sativa Japonica Group

ABSTRACT: Histone acetyltransferase OsGCN5 palys an important role in establishing programs of cell proliferation of crown root meristem

PROVIDER: PRJNA377253 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR5296170_1.fastq.gz	Fastqsanger.gz
	SRR5296170_2.fastq.gz	Fastqsanger.gz
	SRR5296171_1.fastq.gz	Fastqsanger.gz
	SRR5296171_2.fastq.gz	Fastqsanger.gz
	SRR5296172_1.fastq.gz	Fastqsanger.gz

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Histone acetyltransferase OsGCN5 palys an important role in establishing programs of cell proliferation of crown root meristem

Project description:Shoot-borne crown roots are the major root system in cereals. Previous work has shown that the Wuschel-related homeobox gene WOX11 is necessary and sufficient to promote rice crown root emergence and elongation. Here, we show that WOX11 recruits the ADA2-GCN5 histone acetyltransferase (HAT) module to activate downstream target genes in crown root meristem. OsGCN5 and OsADA2 are highly expressed in root meristem. Knockdown of OsGCN5 and OsADA2 affects crown root initiation and elongation. Here we sought to find the downstream genes of OsGCN5 in rice crown root tip.

2017-03-28 | GSE95481 | GEO

Oryza sativa Japonica Group

Project description:Regulation of histone methylation and gene expression reprogramming in rice inflorescence meristem

| PRJNA282397 | ENA

A Redox-Dependent Pathway for Regulating Reversible HDACs Synchronizes Crown Root Development in Rice

Project description:As a signal molecular in aerobic organism, how reactive oxygen species (ROS) regulates normal life is a fundamental biological question. Locally accumulated ROS have been reported to balance cell division and differentiation in root apical meristem. However, the underlying molecular mechanism is unclear. Here, we reveal that developmentally produced H2O2 in plant root apical meristem (RAM) triggers reversible acetylation modification of proteins which involved in protein synthesis and cell proliferation. WOX11, an essential transcription factor for crown roots (CRs) formation, modulates ROS homeostasis by directly regulating class III peroxidases. HDACs (histone deacetylases) sense cellular redox status to enhance their enzyme activities, which drives protein acetylation level alterations in rice roots. Oxidation-dependent on WOX11 triggered protein acetylation modification leads to a robust root system in rice. Our study revealed a novel regulatory mechanism which cellular redox status via a WOX11-dependent manner regulates protein acetylation during rice crown root development. The molecular link between the redox status and HDACs activities through WOX11-dependent pathway may provide new insight into which plants exploit developmentally produced ROS to direct organogenesis. Additionally, HDACs reversible enzyme activity via redox-regulated endows with the flexibility of protein modification control in dealing with developmental and changing environmental cues.

2022-08-10 | PXD029260 | Pride

MERISTEM ACTIVITYLESS1 (MAL1) is involved in crown root development through the maintenance of meristem size in rice

Project description:Rice MERISTEM ACTIVITYLESS1 (MAL1) is an RING-H2 finger domain (RFD) contained gene. To elucidate the molecular functions of MAL1 during crown root development, we generated MAL1 knock-down transgenic plants. MAL1 RNA interfering (RNAi) transgenic plants exhibited shorter crown root length and less crown root number phenotype accompanied by low cell division rate.Here we sought to find the downstream genes of OsMAL1 in rice crown root tip

2020-10-09 | GSE141854 | GEO

Oryza sativa Japonica Group

Project description:Genome sequencing reveals agronomically-important loci in rice using MutMap

| PRJDB2055 | ENA

Proteomic analysis of the apoplast reveals a differential cold acclimation response among winter wheat crown tissues

Project description:The crown is the critical region for survival of winter wheat exposed to low temperature stresses. When wheat is exposed to non-freezing low temperatures, they can increase their freezing tolerance (cold acclimation, ACC). Changes within the apoplast are thought to be crucial for acquisition of freezing tolerance. However, how individual tissues within the ccrown, namely the shoot apical meristem (SAM, responsible for new shoot growth) and vascular transition zone (VTZ, located at the base of the crown)enhance tolerance to freezing has not yet been characterized. In the present study, we conducted shotgun proteomic analysis of the apoplast fluid to investigate ACC-induced proteins in the SAM and VTZ.

2018-10-23 | PXD007796 | Pride

Oryza sativa Japonica Group

Project description:Fundamental molecular bases for differential transcriptional programs of top leaves during grain-filling in rice

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Oryza sativa Japonica Group strain:Norin 8 and Nipponbare

Project description:DNA methylome analysis of the shoot apical meristem

| PRJDB7574 | ENA

Oryza sativa Japonica Group

Project description:Genome-wide DNA methylation profile in mutants of a rice HISTONE DEACETYLASE (HDA705)

| PRJDB6575 | ENA

HAT1 coordinates histone production and acetylation via H4 promoter binding

Project description:The energetic costs of duplicating chromatin are large and therefore likely depend on nutrient sensing checkpoints and metabolic inputs. By studying chromatin modifiers regulated by epithelial growth factor, we identified histone acetyltransferase 1 (HAT1) as an induced gene that enhances proliferation through coordinating histone production, acetylation and glucose metabolism. In addition to its canonical role as a cytoplasmic histone H4 acetyltransferase, we isolated a HAT1-containing complex bound specifically at promoters of H4 genes. HAT1-dependent transcription of H4 genes required an acetate-sensitive promoter element. HAT1 expression was critical for S-phase progression and maintenance of H3 lysine 9 acetylation at proliferation-associated genes, including histone genes. Therefore, these data describe a feed-forward circuit whereby HAT1 captures acetyl-groups on nascent histones and drives H4 production by chromatin binding to support chromatin replication and acetylation. These findings have important implications for human disease, since high HAT1 levels associate with poor outcomes across multiple cancer types.

2019-07-02 | GSE117472 | GEO

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