ArticlePlant molecular biology2018
Role of Arabidopsis ABF1/3/4 during det1 germination in salt and osmotic stress conditions.
Article in Plant molecular biology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed, 44 citations in OpenAlex.
- CML20 integrates phytochrome and calcium signaling pathways to optimize seed germination under abiotic stress.Nature communications · 2026Article
- Light-Controlled Seed Germination: Molecular Integration With Environmental Signals.Plant, cell & environment · 2026Review
- CONSTANS-like 13 homologs MiCOL13 A and MiCOL13B orchestrate flowering time and salt-drought tolerance in mango.Planta · 2025Article
- Article
- Functions of Plant Phytochrome Signaling Pathways in Adaptation to Diverse Stresses.International journal of molecular sciences · 2023Review
- The unequal functional redundancy of ArabidopsisFrontiers in plant science · 2023Article
- MaABI5 and MaABF1 transcription factors regulate the expression ofFrontiers in plant science · 2023Article
- Leaf transcriptome analysis of Medicago ruthenica revealed its response and adaptive strategy to drought and drought recovery.BMC plant biology · 2022Article
- The transcription factor bZIP68 negatively regulates cold tolerance in maize.The Plant cell · 2022Article
- Review
- Functional examination of lncRNAs in allotetraploid Gossypium hirsutum.BMC genomics · 2021Article
- Chloroplast Localized FIBRILLIN11 Is Involved in the Osmotic Stress Response during Arabidopsis Seed Germination.Biology · 2021Article
- Nitric oxide molecular targets: reprogramming plant development upon stress.Journal of experimental botany · 2019Review
- A stress-responsive bZIP transcription factor OsbZIP62 improves drought and oxidative tolerance in rice.BMC plant biology · 2019Article
- A Cryophyte Transcription Factor, CbABF1, Confers Freezing, and Drought Tolerance in Tobacco.Frontiers in plant science · 2019Article
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Authors and funding
4 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
key messageArabidopsis det1 mutants exhibit salt and osmotic stress resistant germination. This phenotype requires HY5, ABF1, ABF3, and ABF4. While DE-ETIOLATED 1 (DET1) is well known as a negative regulator of light development, here we describe how det1 mutants also exhibit altered responses to salt and osmotic stress, specifically salt and mannitol resistant germination. LONG HYPOCOTYL 5 (HY5) positively regulates both light and abscisic acid (ABA) signalling. We found that hy5 suppressed the det1 salt and mannitol resistant germination phenotype, thus, det1 stress resistant germination requires HY5. We then queried publically available microarray datasets to identify genes downstream of HY5 that were differentially expressed in det1 mutants. Our analysis revealed that ABA regulated genes, including ABA RESPONSIVE ELEMENT BINDING FACTOR 3 (ABF3), are downregulated in det1 seedlings. We found that ABF3 is induced by salt in wildtype seeds, while homologues ABF4 and ABF1 are repressed, and all three genes are underexpressed in det1 seeds. We then investigated the role of ABF3, ABF4, and ABF1 in det1 phenotypes. Double mutant analysis showed that abf3, abf4, and abf1 all suppress the det1 salt/osmotic stress resistant germination phenotype. In addition, abf1 suppressed det1 rapid water loss and open stomata phenotypes. Thus interactions between ABF genes contribute to det1 salt/osmotic stress response phenotypes.
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