ArticleBMC plant biology2010
The Arabidopsis EAR-motif-containing protein RAP2.1 functions as an active transcriptional repressor to keep stress responses under tight control.
Article in BMC plant biology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 84 papers, 1 of them a synthesis that pooled it.
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Who cites it
84 citing papers in PubMed, 1 synthesis or guideline pooled it, 180 citations in OpenAlex.
- Pooled it
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- Genome-wide identification and functional characterization of the DREB gene family in barley (Hordeum vulgare L.) reveal its role in drought and salinity responses.BMC genomics · 2025Article
- Potential regulatory modules to integrate microgravity signals into flowering pathways in Arabidopsis thaliana grown in space.NPJ microgravity · 2025Article
- SlPLT6 controls ripening initiation and quality traits through modulation of histone acetylation and methylation in tomato.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- An A-6 subgroup member of DREB gene family positively regulates cold stress tolerance by modulating an antioxidant defense system in transgenic potato.Scientific reports · 2025Article
- Physiological, biochemical, and transcriptomic alterations in Castor (Ricinus communis L.) under polyethylene glycol-induced oxidative stress.BMC plant biology · 2024Article
- Article
- Maritime Pine Rootstock Genotype Modulates Gene Expression Associated with Stress Tolerance in Grafted Stems.Plants (Basel, Switzerland) · 2024Article
- Understanding role of roots in plant response to drought: Way forward to climate-resilient crops.The plant genome · 2024Review
- OverexpressingInternational journal of molecular sciences · 2023Article
- Transcriptome profiling reveals the expression and regulation of genes associated with Fusarium wilt resistance in chickpea (Cicer arietinum L.).The plant genome · 2023Article
- Identification and Characterization of AP2/ERF Transcription Factors in Yellow Horn.International journal of molecular sciences · 2022Article
- Whole-genome resequencing reveals signature of local adaptation and divergence in wild soybean.Evolutionary applications · 2022Article
- GENOMES UNCOUPLED1 plays a key role during the de-etiolation process in Arabidopsis.The New phytologist · 2022Article
- Characterization of the Gene Expression Profile Response to Drought Stress inInternational journal of molecular sciences · 2022Article
- SlERF.F12 modulates the transition to ripening in tomato fruit by recruiting the co-repressor TOPLESS and histone deacetylases to repress key ripening genes.The Plant cell · 2022Article
- Identification of AP2/ERF transcription factors inFrontiers in plant science · 2022Article
- Combined analysis of transcriptome and metabolome reveals the molecular mechanism and candidate genes ofFrontiers in plant science · 2022Article
- Role of pepper MYB transcription factor CaDIM1 in regulation of the drought response.Frontiers in plant science · 2022Article
24 more citing papers are in PubMed but not listed here.
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundPlants respond to abiotic stress through complex regulation of transcription, including both transcriptional activation and repression. Dehydration-responsive-element binding protein (DREB)-type transcription factors are well known to play important roles in adaptation to abiotic stress. The mechanisms by which DREB-type transcription factors activate stress-induced gene expression have been relatively well studied. However, little is known about how DREB-type transcriptional repressors modulate plant stress responses. In this study, we report the functional analysis of RAP2.1, a DREB-type transcriptional repressor.
resultsRAP2.1 possesses an APETALA2 (AP2) domain that binds to dehydration-responsive elements (DREs) and an ERF-associated amphiphilic repression (EAR) motif, as the repression domain located at the C-terminus of the protein. Expression of RAP2.1 is strongly induced by drought and cold stress via an ABA-independent pathway. Arabidopsis plants overexpressing RAP2.1 show enhanced sensitivity to cold and drought stresses, while rap2.1-1 and rap2.1-2 T-DNA insertion alleles result in reduced sensitivity to these stresses. The reduced stress sensitivity of the plant containing the rap2.1 allele can be genetically complemented by the expression of RAP2.1, but not by the expression of EAR-motif-mutated RAP2.1. Furthermore, chromatin immunoprecipitation (ChIP) analysis has identified Responsive to desiccation/Cold-regulated (RD/COR) genes as downstream targets of RAP2.1 in vivo. Stress-induced expression of the RD/COR genes is repressed by overexpression of RAP2.1 and is increased in plants expressing the rap2.1 allele. In addition, RAP2.1 can negatively regulate its own expression by binding to DREs present in its own promoter. Our data suggest that RAP2.1 acts as a negative transcriptional regulator in defence responses to cold and drought stress in Arabidopsis.
conclusionsA hypothetical model for the role of RAP2.1 in modulating plant responses to cold and drought is proposed in this study. It appears that RAP2.1 acts as a negative "subregulon" of DREB-type activators and is involved in the precise regulation of expression of stress-related genes, acting to keep stress responses under tight control.
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