ArticlePlant signaling & behavior2013
A novel abi5 allele reveals the importance of the conserved Ala in the C3 domain for regulation of downstream genes and salt tolerance during germination in Arabidopsis.
Article in Plant signaling & behavior, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed, 27 citations in OpenAlex.
- PgUGT84K2, a Panax ginseng glycosyltransferase, catalyses IBA glycosylation and enhances abiotic stress tolerance in transgenic Arabidopsis.Plant biology (Stuttgart, Germany) · 2026Article
- Article
- Genome-Wide identification and expression analysis of CsABF/AREB gene family in cucumber (Cucumis sativus L.) and in response to phytohormonal and abiotic stresses.Scientific reports · 2025Article
- BarleyFrontiers in plant science · 2020Article
- Nitric oxide molecular targets: reprogramming plant development upon stress.Journal of experimental botany · 2019Review
- WRKY43 regulates polyunsaturated fatty acid content and seed germination under unfavourable growth conditions.Scientific reports · 2017Article
- MODD Mediates Deactivation and Degradation of OsbZIP46 to Negatively Regulate ABA Signaling and Drought Resistance in Rice.The Plant cell · 2016Article
- A Stress-Activated Transposon in Arabidopsis Induces Transgenerational Abscisic Acid Insensitivity.Scientific reports · 2016Article
- SOS2-LIKE PROTEIN KINASE5, an SNF1-RELATED PROTEIN KINASE3-Type Protein Kinase, Is Important for Abscisic Acid Responses in Arabidopsis through Phosphorylation of ABSCISIC ACID-INSENSITIVE5.Plant physiology · 2015Article
- Co-operative intermolecular kinetics of 2-oxoglutarate dependent dioxygenases may be essential for system-level regulation of plant cell physiology.Frontiers in plant science · 2015Article
- ABI-like transcription factor gene TaABL1 from wheat improves multiple abiotic stress tolerances in transgenic plants.Functional & integrative genomics · 2014Article
- ASCORBATE PEROXIDASE6 protects Arabidopsis desiccating and germinating seeds from stress and mediates cross talk between reactive oxygen species, abscisic acid, and auxin.Plant physiology · 2014Article
- ABA-insensitive3, ABA-insensitive5, and DELLAs Interact to activate the expression of SOMNUS and other high-temperature-inducible genes in imbibed seeds in Arabidopsis.The Plant cell · 2013Article
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4 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Abscisic acid (ABA) signal transduction during Arabidopsis seed development and germination requires a Group A bZIP transcription factor encoded by ABA INSENSITIVE5 (ABI5). In addition to the basic leucine zipper DNA binding domain, Group A bZIPs are characterized by three N-terminal conserved regions (C1, C2 and C3) and one C-terminal conserved region (C4). These conserved regions are considered to play roles in ABI5 functions; however, except for the phosphorylation site, the importance of the highly conserved amino acids is unclear. Here, we report a novel abi5 recessive allele (abi5-9) that encodes an intact ABI5 protein with one amino acid substitution (A214G) in the C3 domain. The abi5-9 plants showed ABA insensitivity during germination and could germinate on medium containing 175 mM NaCl or 500 mM mannitol. Em1 and Em6--both encoding late embryogenesis abundant (LEA) proteins and directly targeted by ABI5 regulation--were expressed at very low levels in abi5-9 plants compared with the wild type. In yeast, the abi5-9 protein exhibited greatly reduced interaction with ABI3 compared with ABI5. These data suggest that Ala214 in ABI5 contributes to the function of ABI5 via its interaction with ABI3.
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