ArticleScientific reports2015
An ABA down-regulated bHLH transcription repressor gene, bHLH129 regulates root elongation and ABA response when overexpressed in Arabidopsis.
Article in Scientific reports, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.
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39 citing papers in PubMed, 70 citations in OpenAlex.
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- Comparative transcriptome analysis reveals abscisic acid-induced bHLH transcription factors involved in saikosaponin biosynthesis inPlant signaling & behavior · 2025Article
- HemK class methyltransferase, a protein translation regulator: role in growth, development and phenotypic diversity.Molecular biology reports · 2025Review
- Cytosolic and Nucleosolic Calcium-Regulated Long Non-Coding RNAs and Their Target Protein-Coding Genes in Response to Hyperosmolarity and Salt Stresses inInternational journal of molecular sciences · 2025Article
- Natural variation in the adjustment of primary metabolism determines ammonium tolerance in the model grass Brachypodium distachyon.Journal of experimental botany · 2024Article
- AcbHLH144 transcription factor negatively regulates phenolic biosynthesis to modulate pineapple internal browning.Horticulture research · 2023Article
- BIC2, a Cryptochrome Function Inhibitor, Is Involved in the Regulation of ABA Responses inPlants (Basel, Switzerland) · 2023Article
- Article
- A Novel bHLH Transcription Factor PtrbHLH66 from Trifoliate Orange Positively Regulates Plant Drought Tolerance by Mediating Root Growth and ROS Scavenging.International journal of molecular sciences · 2022Article
- AtbZIP62 Acts as a Transcription Repressor to Positively Regulate ABA Responses in Arabidopsis.Plants (Basel, Switzerland) · 2022Article
- AtEAU1 and AtEAU2, Two EAR Motif-Containing ABA Up-Regulated Novel Transcription Repressors Regulate ABA Response inInternational journal of molecular sciences · 2022Article
- CROWN ROOTLESS1 binds DNA with a relaxed specificity and activates OsROP and OsbHLH044 genes involved in crown root formation in rice.The Plant journal : for cell and molecular biology · 2022Article
- Genome-Wide Characterization and Analysis of the bHLH Transcription Factor Family inFrontiers in genetics · 2022Article
- Basic Helix-Loop-Helix (bHLH) Transcription Factors Regulate a Wide Range of Functions in Arabidopsis.International journal of molecular sciences · 2021Review
- Identification of tomato root growth regulatory genes and transcription factors through comparative transcriptomic profiling of different tissues.Physiology and molecular biology of plants : an international journal of functional plant biology · 2021Article
- Knockout of the entire family of AITR genes in Arabidopsis leads to enhanced drought and salinity tolerance without fitness costs.BMC plant biology · 2021Article
- AITRL, an evolutionarily conserved plant specific transcription repressor regulates ABA response in Arabidopsis.Scientific reports · 2021Article
- PIP2, An Auxin Induced Plant Peptide Hormone Regulates Root and Hypocotyl Elongation inFrontiers in plant science · 2021Article
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7 authors at 1 institution in 1 country.
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Abstract
Plant hormone abscisic acid (ABA) plays a crucial role in modulating plant responses to environmental stresses. Basic helix-loop-helix (bHLH) transcription factors are one of the largest transcription factor families that regulate multiple aspects of plant growth and development, as well as of plant metabolism in Arabidopsis. Several bHLH transcription factors have been shown to be involved in the regulation of ABA signaling. We report here the characterization of bHLH129, a bHLH transcription factor in Arabidopsis. We found that the expression level of bHLH129 was reduced in response to exogenously applied ABA, and elevated in the ABA biosynthesis mutant aba1-5. Florescence observation of transgenic plants expressing bHLH129-GFP showed that bHLH129 was localized in the nucleus, and transient expression of bHLH129 in protoplasts inhibited reporter gene expression. When expressed in Arabidopsis under the control of the 35S promoter, bHLH129 promoted root elongation, and the transgenic plants were less sensitivity to ABA in root elongation assays. Quantitative RT-PCR results showed that ABA response of several genes involved in ABA signaling, including ABI1, SnRK2.2, SnRK2.3 and SnRK2.6 were altered in the transgenic plants overexpressing bHLH129. Taken together, our study suggests that bHLH129 is a transcription repressor that negatively regulates ABA response in Arabidopsis.
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