ArticlePlant molecular biology2013
Arabidopsis suppressor mutant of abh1 shows a new face of the already known players: ABH1 (CBP80) and ABI4-in response to ABA and abiotic stresses during seed germination.
Article in Plant molecular biology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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19 citing papers in PubMed, 38 citations in OpenAlex.
- Heterologous expression of soybean E3 ubiquitin ligase Glycine max Ring Zinc Finger 1-Like 1 (GmRZFL1) negatively responds to osmotic stress by participating in the abscisic acid signaling pathway in Arabidopsis.BMC plant biology · 2025Article
- Disruption ofPlants (Basel, Switzerland) · 2025Article
- The cap-binding complex modulates ABA-responsive transcript splicing during germination in barley (Hordeum vulgare).Scientific reports · 2024Article
- The Transcription FactorInternational journal of molecular sciences · 2023Article
- Alternative splicing in ABA signaling during seed germination.Frontiers in plant science · 2023Review
- The MYB33, MYB65, and MYB101 transcription factors affect Arabidopsis and potato responses to drought by regulating the ABA signaling pathway.Physiologia plantarum · 2022Article
- Uncovering the genomic basis of an extraordinary plant invasion.Science advances · 2022Article
- The increasing diversity and complexity of the RNA-binding protein repertoire in plants.Proceedings. Biological sciences · 2020Article
- Secondary Mutation-Induced Alternative Splicing Suppresses RNA Splicing Defect of thePlant physiology · 2020Article
- Histone Deacetylase HDA9 With ABI4 Contributes to Abscisic Acid Homeostasis in Drought Stress Response.Frontiers in plant science · 2020Article
- Changes in the Arabidopsis RNA-binding proteome reveal novel stress response mechanisms.BMC plant biology · 2019Article
- Emerging Roles of the Nuclear Cap-Binding Complex in Abiotic Stress Responses.Plant physiology · 2018Review
- Mutation inFrontiers in plant science · 2017Article
- Genome-Wide Mapping of Uncapped and Cleaved Transcripts Reveals a Role for the Nuclear mRNA Cap-Binding Complex in Cotranslational RNA Decay in Arabidopsis.The Plant cell · 2016Article
- Salt Stress Reveals a New Role for ARGONAUTE1 in miRNA Biogenesis at the Transcriptional and Posttranscriptional Levels.Plant physiology · 2016Article
- The Role and Regulation of ABI5 (ABA-Insensitive 5) in Plant Development, Abiotic Stress Responses and Phytohormone Crosstalk.Frontiers in plant science · 2016Review
- mirEX 2.0 - an integrated environment for expression profiling of plant microRNAs.BMC plant biology · 2015Article
- Towards the identification of new genes involved in ABA-dependent abiotic stresses using Arabidopsis suppressor mutants of abh1 hypersensitivity to ABA during seed germination.International journal of molecular sciences · 2013Article
- Differential control of seed primary dormancy in Arabidopsis ecotypes by the transcription factor SPATULA.Proceedings of the National Academy of Sciences of the United States of America · 2013Article
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Although the importance of abscisic acid (ABA) in plant development and response to abiotic and biotic stresses is well recognized, the molecular basis of the signaling pathway has not been fully elucidated. Mutants in genes related to ABA are widely used as a tool for gaining insight into the mechanisms of ABA signal transduction and ABA-dependent stress response. We used a genetic approach of a suppressor screening in order to decipher the interaction between ABH1 (CBP80) and other components of ABA signaling. ABH1 (CBP80) encodes a large subunit of CBC (CAP BINDING COMPLEX) and the abh1 mutant is drought-tolerant and hypersensitive to ABA during seed germination. The suppressor mutants of abh1 were generated after chemical mutagenesis. The mutant named soa1 (suppressor of abh1 hypersensitivity to ABA 1) displayed an ABA-insensitive phenotype during seed germination. The genetic analysis showed that the soa1 phenotype is dominant in relation to abh1 and segregates as a single locus. Based on soa1's response to a wide spectrum of physiological assays during different stages of development, we used the candidate-genes approach in order to identify a suppressor gene. The molecular analysis revealed that mutation causing the phenotype of soa1 occurred in the ABI4 (ABA insensitive 4) gene. Analysis of pre-miR159 expression, whose processing depends on CBC, as well as targets of miR159: MYB33 and MYB101, which are positive regulators of ABA signaling, revealed a possible link between CBP80 (ABH1) and ABI4 presented here.
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