ArticleBMC plant biology2009
The HaDREB2 transcription factor enhances basal thermotolerance and longevity of seeds through functional interaction with HaHSFA9.
Article in BMC plant biology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.
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Who cites it
32 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Seed Longevity in Legumes: Deeper Insights Into Mechanisms and Molecular Perspectives.Frontiers in plant science · 2022Pooled it
- Seed-specific overexpression of DREB2G alters seed morphology, oil accumulation, and germination in Arabidopsis.Plant cell reports · 2026Article
- Genome-wide identification and characterization of the RNAi gene families in Brassica rapa L. highlighting their regulatory components and underlying functions involving crop improvement.BMC genomic data · 2026Article
- Soybean genetic engineering in Brazil and South America - A review.Genetics and molecular biology · 2026Article
- Unraveling the Mechanistic Basis for Control of Seed Longevity.Plants (Basel, Switzerland) · 2025Review
- Article
- Arabidopsis HSFA9 Acts as a Regulator of Heat Response Gene Expression and the Acquisition of Thermotolerance and Seed Longevity.Plant & cell physiology · 2024Article
- Identifying the Soybean microRNAs Related toInternational journal of molecular sciences · 2023Article
- Genetic Aspects and Molecular Causes of Seed Longevity in Plants-A Review.Plants (Basel, Switzerland) · 2022Review
- Comparative transcriptomic profiling of peach and nectarine cultivars reveals cultivar-specific responses to chilled postharvest storage.Frontiers in plant science · 2022Article
- Analysis of Stored mRNA Degradation in Acceleratedly Aged Seeds of Wheat and Canola in Comparison to Arabidopsis.Plants (Basel, Switzerland) · 2020Article
- Genome-Wide Investigation of Heat Shock Transcription Factor Family in Wheat (International journal of molecular sciences · 2020Article
- Arabidopsis Seed Stored mRNAs are Degraded Constantly over Aging Time, as Revealed by New Quantification Methods.Frontiers in plant science · 2019Article
- Integrative analysis of the late maturation programme and desiccation tolerance mechanisms in intermediate coffee seeds.Journal of experimental botany · 2018Article
- Molecular characterization of the acquisition of longevity during seed maturation in soybean.PloS one · 2017Article
- Characterization of Soybean Genetically Modified for Drought Tolerance in Field Conditions.Frontiers in plant science · 2017Article
- ABI5 Is a Regulator of Seed Maturation and Longevity in Legumes.The Plant cell · 2016Article
- HsfA2 Controls the Activity of Developmentally and Stress-Regulated Heat Stress Protection Mechanisms in Tomato Male Reproductive Tissues.Plant physiology · 2016Article
- A role for seed storage proteins in Arabidopsis seed longevity.Journal of experimental botany · 2015Article
- Inference of Longevity-Related Genes from a Robust Coexpression Network of Seed Maturation Identifies Regulators Linking Seed Storability to Biotic Defense-Related Pathways.The Plant cell · 2015Article
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundTranscription factor HaDREB2 was identified in sunflower (Helianthus annuus L.) as a drought-responsive element-binding factor 2 (DREB2) with unique properties. HaDREB2 and the sunflower Heat Shock Factor A9 (HaHSFA9) co-activated the Hahsp17.6G1 promoter in sunflower embryos. Both factors could be involved in transcriptional co-activation of additional small heat stress protein (sHSP) promoters, and thus contribute to the HaHSFA9-mediated enhancement of longevity and basal thermotolerance of seeds.
resultsWe found that overexpression of HaDREB2 in seeds did not enhance longevity. This was deduced from assays of basal thermotolerance and controlled seed-deterioration, which were performed with transgenic tobacco. Furthermore, the constitutive overexpression of HaDREB2 did not increase thermotolerance in seedlings or result in the accumulation of HSPs at normal growth temperatures. In contrast, when HaDREB2 and HaHSFA9 were conjointly overexpressed in seeds, we observed positive effects on seed longevity, beyond those observed with overexpression of HaHSFA9 alone. Such additional effects are accompanied by a subtle enhancement of the accumulation of subsets of sHSPs belonging to the CI and CII cytosolic classes.
conclusionOur results reveal the functional interdependency of HaDREB2 and HaHSFA9 in seeds. HaDREB2 differs from other previously characterized DREB2 factors in plants in terms of its unique functional interaction with the seed-specific HaHSFA9 factor. No functional interaction between HaDREB2 and HaHSFA9 was observed when both factors were conjointly overexpressed in vegetative tissues. We therefore suggest that additional, seed-specific factors, or protein modifications, could be required for the functional interaction between HaDREB2 and HaHSFA9.
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