ArticlePlant molecular biology2008
The wheat PKABA1-interacting factor TaABF1 mediates both abscisic acid-suppressed and abscisic acid-induced gene expression in bombarded aleurone cells.
Article in Plant molecular biology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed, 42 citations in OpenAlex.
- Allelic variation of TaABI5-A4 significantly affects seed dormancy in bread wheat.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2024Article
- Grape SnRK2.7 Positively Regulates Drought Tolerance in TransgenicInternational journal of molecular sciences · 2024Article
- Genome-Wide Identification and Expression Profile Analysis of the SnRK2 Gene Family in Nicotiana tabacum.Biochemical genetics · 2022Article
- Molecular mapping and characterization of QBp.caas-3BL for black point resistance in wheat (Triticum aestivum L.).TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2021Article
- Review
- Mutation ofInternational journal of molecular sciences · 2019Article
- A Cryophyte Transcription Factor, CbABF1, Confers Freezing, and Drought Tolerance in Tobacco.Frontiers in plant science · 2019Article
- Measuring Gene Expression in Bombarded Barley Aleurone Layers with Increased Throughput.Journal of visualized experiments : JoVE · 2018Article
- Bioinformatic Analyses of Subgroup-A Members of the Wheat bZIP Transcription Factor Family and Functional Identification ofFrontiers in plant science · 2016Article
- Wheat Transcription Factor TaAREB3 Participates in Drought and Freezing Tolerances in Arabidopsis.International journal of biological sciences · 2016Article
- Function of ABA in Stomatal Defense against Biotic and Drought Stresses.International journal of molecular sciences · 2015Review
- Functional analysis of TaABF1 during abscisic acid and gibberellin signalling in aleurone cells of cereal grains.Seed science research · 2013Article
- Heme oxygenase-1 is involved in nitric oxide- and cGMP-induced α-Amy2/54 gene expression in GA-treated wheat aleurone layers.Plant molecular biology · 2013Article
- Evidence that abscisic acid promotes degradation of SNF1-related protein kinase (SnRK) 1 in wheat and activation of a putative calcium-dependent SnRK2.Journal of experimental botany · 2012Article
- The APETALA-2-like transcription factor OsAP2-39 controls key interactions between abscisic acid and gibberellin in rice.PLoS genetics · 2010Article
- Gibberellin signaling.Planta · 2008Review
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
Abstract
To investigate the crosstalk of abscisic acid (ABA) and gibberellin (GA) signaling in wheat (Triticum aestivum), we have focused on the transcription factor TaABF1. TaABF1 (a member of the ABA response element binding factor family) physically interacts with PKABA1, a signaling component in the ABA-suppression of GA-induced gene expression in cereal grains. Constitutive expression of TaABF1 in aleurone cells of imbibing grains completely eliminated GA-induced expression from the Amy32b promoter. In addition to its effect on Amy32b, TaABF1 strongly stimulated expression from the ABA-inducible HVA1 and HVA22 promoters. Overexpression of TaABF1 fully substituted for exogenous ABA in the induction of these two promoters. The introduction of a construct directing RNA inhibition (RNAi) of TaABF1 did not prevent either ABA-mediated or PKABA1-mediated suppression of Amy32b expression. Similarly, the RNAi construct did not prevent ABA-induction of HVA1. These results suggest that another protein may act redundantly with TaABF1 during cereal imbibition. Although TaABF1 mRNA was downregulated during imbibition of afterripened grains, transcript levels were not significantly altered by exogenous GA or ABA, suggesting that upregulation of TaABF1 at the mRNA level is not required for its role in ABA signaling. We propose a model in which TaABF1 is involved in two separate branches of ABA signaling. In this model, TaABF1 acts downstream of PKABA1 in ABA-suppression of GA-induced gene expression, and participates (independently of PKABA1) in the stimulation of ABA-induced genes.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.