ArticleJournal of experimental botany2017
Seed-specific transcription factor HSFA9 links late embryogenesis and early photomorphogenesis.
Article in Journal of experimental botany, 2017. 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, 28 citations in OpenAlex.
- A novel CsRNF-CsHSF24-CsF3'5'H2 module regulates epigallocatechin gallate biosynthesis in Camellia sinensis.The Plant journal : for cell and molecular biology · 2026Article
- Identification and functional characterization of heat shock transcription factor genes in Rhododendron Delavayi under heat stress.BMC plant biology · 2026Article
- Sunflower seed-specific HSFA9 induces persistent chromatin accessibility during seed-to-seedling developmental transition.The Plant journal : for cell and molecular biology · 2025Article
- Expanding the role ofFrontiers in plant science · 2025Article
- Article
- Unravelling the Significance of Seed Proteomics: Insights into Seed Development, Function, and Agricultural Applications.The protein journal · 2024Review
- Arabidopsis HSFA9 Acts as a Regulator of Heat Response Gene Expression and the Acquisition of Thermotolerance and Seed Longevity.Plant & cell physiology · 2024Article
- General Analysis of Heat Shock Factors in theInternational journal of molecular sciences · 2024Article
- Novel roles of HSFs and HSPs, other than relating to heat stress, in temperature-mediated flowering.Annals of botany · 2023Article
- Ectopic overexpression of TaHsfA5 promotes thermomorphogenesis in Arabidopsis thaliana and thermotolerance in Oryza sativa.Plant molecular biology · 2023Article
- Article
- A seed-specific transcription factor, HSFA9, anticipates UV-B light responses by mimicking the activation of the UV-B receptor in tobacco.The Plant journal : for cell and molecular biology · 2022Article
- Heat shock transcription factor (Hsf) gene family in common bean (Phaseolus vulgaris): genome-wide identification, phylogeny, evolutionary expansion and expression analyses at the sprout stage under abiotic stress.BMC plant biology · 2022Article
- Genomic analyses of heat stress transcription factors (HSFs) in simulated drought stress response and storage root deterioration after harvest in cassava.Molecular biology reports · 2020Article
- Heat Stress Factors Expressed during Seed Maturation Differentially Regulate Seed Longevity and Seedling Greening.Plants (Basel, Switzerland) · 2020Article
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Authors and funding
5 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
HSFA9 is a seed-specific transcription factor that in sunflower (Helianthus annuus) is involved in desiccation tolerance and longevity. Here we show that the constitutive overexpression of HSFA9 in tobacco (Nicotiana tabacum) seedlings attenuated hypocotyl growth under darkness and accelerated the initial photosynthetic development. Plants overexpressing HSFA9 increased accumulation of carotenoids, chlorophyllide, and chlorophyll, and displayed earlier unfolding of the cotyledons. HSFA9 enhanced phytochrome-dependent light responses, as shown by an intensified hypocotyl length reduction after treatments with continuous far-red or red light. This observation indicated the involvement of at least two phytochromes: PHYA and PHYB. Reduced hypocotyl length under darkness did not depend on phytochrome photo-activation; this was inferred from the lack of effect observed using far-red light pulses applied before the dark treatment. HSFA9 increased the expression of genes that activate photomorphogenesis, including PHYA, PHYB, and HY5. HSFA9 might directly upregulate PHYA and indirectly affect PHYB transcription, as suggested by transient expression assays. Converse effects on gene expression, greening, and cotyledon unfolding were observed using a dominant-negative form of HSFA9, which was overexpressed under a seed-specific promoter. This work uncovers a novel transcriptional link, through HSFA9, between seed maturation and early photomorphogenesis. In all, our data suggest that HSFA9 enhances photomorphogenesis via early transcriptional effects that start in seeds under darkness.
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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.