Arabidopsis thaliana
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA326982 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR3924514.fastq.gz | Fastqsanger.gz | |||
| SRR3926336.fastq.gz | Fastqsanger.gz | |||
| SRR3926337.fastq.gz | Fastqsanger.gz | |||
| SRR3925628.fastq.gz | Fastqsanger.gz |
Items per page: 5 1 - 4 of 4 |
Similar Datasets
Project description:defenses mechanism in response to cold stress-PI4kinases and Long-chain bases kinases in response to cold stress
| PRJNA153715 | ENA
Project description:AtGenExpress: Stress Treatments (Cold stress)
| PRJNA96921 | ENA
Project description:When exposed to low temperatures, plants undergo a drastic reprogramming of their transcriptome in order to adapt to their new environmental conditions, which primes them for potential freezing temperatures. While the involvement of transcription factors in this process, termed cold acclimation, has been deeply investigated, the potential contribution of chromatin regulation remains unelucidated. A large proportion of cold-inducible genes carries the repressive mark histone 3 lysine 27 trimethylation (H3K27me3), which has been hypothesized as maintaining them in a silenced state in the absence of stress, but which would need to be removed or counteracted upon stress perception. However, the fate of H3K27me3 during cold exposure was so far only explored in a locus specific manner. In this study, we offer an epigenome profiling of H3K27me3 and its antagonist active mark histone 3 lysine 4 trimethylation (H3K4me3) during short-term cold exposure. Both chromatin marks undergo rapid redistribution upon cold exposure, however, the gene sets undergoing H3K4me3 or H3K27me3 differential methylation are distinct, refuting the simplistic idea that gene activation relies on a switch from an H3K27me3 repressed chromatin to an active form enriched in H3K4me3. Coupling the ChIP-seq experiments with transcriptome profiling reveals that differential histone methylation correlates with changes in expression. Interestingly, only a subset of cold-regulated genes lose H3K27me3 during their induction, indicating that H3K27me3 is not an obstacle to transcriptional activation. In the H3K27me3 methyltransferase curly leaf (clf) mutant, many cold regulated genes display reduced H3K27me3 levels but their transcriptional activity is not altered prior or during a cold exposure, suggesting that H3K27me3 may serve a more intricate role in the cold response than simply repressing the cold-inducible genes in naïve conditions.
2024-03-15 | GSE255444 | GEO
Project description:When exposed to low temperatures, plants undergo a drastic reprogramming of their transcriptome in order to adapt to their new environmental conditions, which primes them for potential freezing temperatures. While the involvement of transcription factors in this process, termed cold acclimation, has been deeply investigated, the potential contribution of chromatin regulation remains unelucidated. A large proportion of cold-inducible genes carries the repressive mark histone 3 lysine 27 trimethylation (H3K27me3), which has been hypothesized as maintaining them in a silenced state in the absence of stress, but which would need to be removed or counteracted upon stress perception. However, the fate of H3K27me3 during cold exposure was so far only explored in a locus specific manner. In this study, we offer an epigenome profiling of H3K27me3 and its antagonist active mark histone 3 lysine 4 trimethylation (H3K4me3) during short-term cold exposure. Both chromatin marks undergo rapid redistribution upon cold exposure, however, the gene sets undergoing H3K4me3 or H3K27me3 differential methylation are distinct, refuting the simplistic idea that gene activation relies on a switch from an H3K27me3 repressed chromatin to an active form enriched in H3K4me3. Coupling the ChIP-seq experiments with transcriptome profiling reveals that differential histone methylation correlates with changes in expression. Interestingly, only a subset of cold-regulated genes lose H3K27me3 during their induction, indicating that H3K27me3 is not an obstacle to transcriptional activation. In the H3K27me3 methyltransferase curly leaf (clf) mutant, many cold regulated genes display reduced H3K27me3 levels but their transcriptional activity is not altered prior or during a cold exposure, suggesting that H3K27me3 may serve a more intricate role in the cold response than simply repressing the cold-inducible genes in naïve conditions.
2024-03-15 | GSE255443 | GEO
Project description:CAMTA3 is known to be involved in regulation of induction of early cold-responsive genes, CBF1 and CBF2 at cold conditions and of suppression of SA production at warm temperature. Considering a functional redundancy of CAMTA family members in both warm and cold conditions, high-order of camta mutants, camta double and triple mutants, were generated and used to determined the effects of their regulation using microarray analysis. Global gene expression profile of WT and camta mutants was compared with the plants at warm temperature or at cold condition, 4°C for 24 hrs.
2013-06-30 | E-GEOD-43818 | biostudies-arrayexpress
Project description:Innate immune responses of plant cells confer the first line of defence against pathogens. Signals generated by activated receptors are integrated inside the cell and converge on transcriptional programmes in the nucleus. In Arabidopsis, the CAMTA family of transcription factors plays a pivotal function in immunity. CAMTA binding motifs are highly enriched in the genes quickly induced during ETI and PTI. Using RNA-seq, we investigated the role of CAMTA TFs during the early ETI and PTI transcriptional responses.
2017-12-11 | GSE92702 | GEO
Project description:bac2 mutant transcriptome modification during osmotic stress
| PRJNA114835 | ENA
Project description:CAMTA3 is known to be involved in regulation of induction of early cold-responsive genes, CBF1 and CBF2 at cold conditions and of suppression of SA production at warm temperature. Considering a functional redundancy of CAMTA family members in both warm and cold conditions, high-order of camta mutants, camta double and triple mutants, were generated and used to determined the effects of their regulation using microarray analysis.
2013-06-30 | GSE43818 | GEO