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Effect of bZIP59 on transcriptional regulation during shade avoidance responses in Arabidopsis

ABSTRACT: Effect of bZIP59 on transcriptional regulation during shade avoidance responses in Arabidopsis

PROVIDER: PRJNA943426 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR23817319_1.fastq.gz	Fastqsanger.gz
	SRR23817319_2.fastq.gz	Fastqsanger.gz
	SRR23817320_1.fastq.gz	Fastqsanger.gz
	SRR23817320_2.fastq.gz	Fastqsanger.gz
	SRR23817321_1.fastq.gz	Fastqsanger.gz

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phytochrome A-mediated shade avoidance responses

Project description:Arabidopsis is a shade avioding plant. Under simulated shade light with reduced red-to-far red (R:FR) ratio around 0.7, hypocotyls of Arabidopsis seedlings elongate, which is one of the typical shade avoidance responses.We discovered that when the R:FR ratio further decreases to around 0.1 (strong shade), the shade-induced elongation of hypocotyl is abolished and phytochrome A (phyA) mediates this response.In this study, we aim to examine the difference between shade and strong shade treatment and uncover the role of phyA in regulating the shade avoidance responses.

2019-12-21 | GSE55899 | GEO

Effect of bZIP59 on transcriptional regulation during shade avoidance responses in Arabidopsis

2024-08-18 | GSE227154 | GEO

Epigenetic reprogramming orchestrates transcriptional responses in shade avoidance syndrome of Arabidopsis

Project description:For shade-intolerant plants, changes in light quality indicative of competition from neighboring plants trigger shade avoidance syndrome (SAS). PYHTOCHROME-INTERACTING FACTOR 7 is the major transcriptional regulator of SAS in Arabidopsis. However, the epigenetic reprogramming under shade is poorly understood. To identify the histone chaperone ASF1 and HIRA function during SAS, we performed transcriptome deep sequencing (RNA-seq) to search for differentially expressed genes (DEGs) by comparing transcript levels between Col-0 and pif7-1, asf1ab, or hira-1 seedlings during white light and shade conditions. Our data shown that histone chaperone ASF1, through interacting with PIF7 and helping of HIRA, positively regulates shade-induced genes expression.

2023-01-30 | GSE189669 | GEO

PHYTOCHROME-INTERACTING FACTOR 7 and RELATIVE OF EARLY FLOWERING 6 act in shade avoidance memory in Arabidopsis

Project description:Shade avoidance helps plants maximize their access to light for growth under crowding. It is unknown, however, whether a priming shade avoidance mechanism exists that allows plants to respond more effectively to successive shade conditions. Here, we show that the shade-intolerant plant Arabidopsis can remember a first experienced shade event and respond more efficiently to the next event on hypocotyl elongation. The transcriptional regulator PHYTOCHROME-INTERACTING FACTOR 7 (PIF7) and the histone H3K27-demethylase RELATIVE OF EARLY FLOWERING 6 (REF6) were identified as being required for this shade avoidance memory. RNA-sequencing analysis revealed that shade induction of shade memory-related genes was impaired in the pif7 and ref6 mutants. Based on the enrichments of H3K27me3, REF6 and PIF7, we found that priming shade treatment induced PIF7 accumulation, which further recruited REF6 to demethylate H3K27me3 on the chromatin of certain memory-related genes, leading to a state poised for their transcription. Upon the second shade treatment, enhanced shade-mediated induction of these genes resulted in stronger hypocotyl growth responses. We conclude that the transcriptional memory mediated by epigenetic modification plays a key role in the ability of primed plants to remember previously experienced shade and acquire enhanced responses to recurring shade conditions.

2024-07-29 | GSE268785 | GEO

Epigenetic reprogramming orchestrates transcriptional responses in shade avoidance memory of Arabidopsis

Project description:Epigenetic reprogramming orchestrates transcriptional responses in shade avoidance memory of Arabidopsis

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Epigenetic reprogramming orchestrates transcriptional responses in shade avoidance syndrome of Arabidopsis

Project description:Epigenetic reprogramming orchestrates transcriptional responses in shade avoidance syndrome of Arabidopsis

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Epigenetic reprogramming orchestrates transcriptional responses in shade avoidance memory of Arabidopsis

Project description:An RNA-seq was conducted to investigate how REF6 and PIF7 participate in shade avoidance memory.

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Transcriptome-wide profiling of N6-methyladenosine during shade avoidance response in Arabidopsis

Project description:Shade avoidance is a critical adaptive strategy in plants, enabling rapid growth response to access more sunlight under crowding. Despite N6-methyladenosine (m6A) is the most abundant internal modification of eukaryotic mRNA and plays critical roles in RNA stability and translation, m6A dynamics and role in shade avoidance remains unclear. To investigate the effect of shade on m6A modification, we performed methylated RNA immunoprecipitation sequencing (MeRIP-seq) on wild-type Arabidopsis seedlings grown under continuous white light and subjected to 8 h of shade treatment, as well as on the phyB-9 mutant under white light. The results revealed that global m6A modification levels were significantly reduced either after shade treatment or in the phyB-9 mutant.

2026-02-28 | GSE309502 | GEO

De-phosphorylation of bZIP59 by PP2A ensures appropriate shade avoidance response in Arabidopsis

Project description:Shade can trigger the shade avoidance syndrome (SAS) in shade-intolerant species, which cause exaggerated growth and affect crop yield. We report that Arabidopsis transcription factors bZIP59 negatively regulate SAS. To identify direct targets of bZIP59 at the genome-wide level, we performed ChIP-Seq using ProbZIP59::bZIP59-GFP/bzip59 transgenic plants under white light or transferred to shade conditions for 2 hours. Our results indicated shade light dramatically increased the DNA binding ability of bZIP59, and shade-enhanced binding of bZIP59 majorly located around transcriptional start site (TSS) of genes.

2024-08-18 | GSE236101 | GEO

GhFPF1 positively regulates shade avoidance responses by interacting with the NF-Y transcription factor GhNF-YA3 in cotton

Project description:Dense planting can create a shade environment which will stimulate plants to produce a series of shade avoidance responses (SAS). Thus far, slow progress has been made in research into the molecular mechanism of SAS in crops. In this study, we identified GhFPF1 as a positive regulator of SAS in cotton.

2025-08-01 | GSE278752 | GEO

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