ArticleProceedings of the National Academy of Sciences of the United States of America2009
Bell-like homeodomain selectively regulates the high-irradiance response of phytochrome A.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2009. 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.
- The BZR1-BLH1-PIF4 feedback module acts as a molecular amplifier for precise thermomorphogenesis in Arabidopsis.Nature communications · 2026Article
- Hexokinase 1 facilitates post-germinative seedling growth through its catalytic function.The Plant journal : for cell and molecular biology · 2026Article
- LoBLH6 interacts with LoMYB65 to regulate anther development through feedback regulation of gibberellin synthesis in lily.Horticulture research · 2025Article
- Cotton BLH1 and KNOX6 antagonistically modulate fiber elongation via regulation of linolenic acid biosynthesis.Plant communications · 2024Article
- Cryptic divergences and repeated hybridizations within the endangered "living fossil" dove tree (Plant diversity · 2024Article
- Population Structure, Genetic Diversity and Candidate Genes for the Adaptation to Environmental Stress inPlants (Basel, Switzerland) · 2023Article
- The Roles of BLH Transcription Factors in Plant Development and Environmental Response.International journal of molecular sciences · 2022Review
- Identification of Players Controlling Meristem Arrest Downstream of the FRUITFULL-APETALA2 Pathway.Plant physiology · 2020Article
- Enhanced Maps of Transcription Factor Binding Sites Improve Regulatory Networks Learned from Accessible Chromatin Data.Plant physiology · 2019Article
- The mobile RNAs, StBEL11 and StBEL29, suppress growth of tubers in potato.Plant molecular biology · 2017Article
- Floral Induction in Arabidopsis by FLOWERING LOCUS T Requires Direct Repression of BLADE-ON-PETIOLE Genes by the Homeodomain Protein PENNYWISE.Plant physiology · 2015Article
- Light-regulated nuclear import and degradation of Arabidopsis phytochrome-A N-terminal fragments.Plant & cell physiology · 2011Article
- Arabidopsis thaliana life without phytochromes.Proceedings of the National Academy of Sciences of the United States of America · 2010Article
- Light exaggerates apical hook curvature through phytochrome actions in tomato seedlings.Planta · 2010Article
- OWL1: an Arabidopsis J-domain protein involved in perception of very low light fluences.The Plant cell · 2009Article
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9 authors.
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Abstract
Plant responses mediated by phytochrome A display a first phase saturated by transient light signals and a second phase requiring sustained excitation with far-red light (FR). These discrete outcomes, respectively so-called very-low-fluence response (VLFR) and high-irradiance response (HIR), are appropriate in different environmental and developmental contexts but the mechanisms that regulate the switch remain unexplored. Promoter analysis of a light-responsive target gene revealed a motif necessary for HIR but not for VLFR. This motif is required for binding of the Bell-like homeodomain 1 (BLH1) to the promoter in in vitro and in yeast 1-hybrid experiments. Promoter substitutions that increased BLH1 binding also enhanced HIR. blh1 mutants showed reduced responses to continuous FR and to deep canopy shadelight, but they retained normal responses to pulsed FR or red light and unfiltered sunlight. BLH1 enhanced BLH1 expression and its promotion by FR. We conclude that BLH1 specifically regulates HIR and not VLFR of phytochrome A.
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