ArticlePlant physiology2022
Phytochrome interacting factor MdPIF7 modulates anthocyanin biosynthesis and hypocotyl growth in apple.
Article in Plant physiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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17 citing papers in PubMed, 40 citations in OpenAlex.
- MdPHYB2-MdPIF1 Module Regulates Transcription Factors to Mediate Light-Dependent ALA-Induced Apple Anthocyanin Biosynthesis.Plant, cell & environment · 2026Article
- Anthocyanin biosynthesis in blueberry is regulated by light and abscisic acid signaling via a VcABF2-miR156-VcSPL9 feedback loop.The New phytologist · 2026Article
- Divergent Regulatory Effects of Jasmonic Acid on Tomato Lycopene Biosynthesis Under Light and Dark Conditions.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Anthocyanin accumulation differences in European pears caused by Phytochrome-interacting factor 3 (PcPIF3) promoter mutations under UV-B.Journal of advanced research · 2026Article
- Species-specific PHYTOCHROME-INTERACTING FACTOR utilization in the plant morphogenetic response to environmental stimuli.The Plant cell · 2025Article
- Integration of transcriptomic and metabolomic analysis reveals light-regulated anthocyanin accumulation in the peel of 'Yinhongli' plum.BMC plant biology · 2025Article
- Transcript-Wide Identification and Characterization of the BBX Gene Family inPlants (Basel, Switzerland) · 2025Article
- Identification of key genes controlling anthocyanin biosynthesis in the fruits of a bud variety of Tarocco blood-orange.BMC plant biology · 2025Article
- VvFHY3 links auxin and endoplasmic reticulum stress to regulate grape anthocyanin biosynthesis at high temperatures.The Plant cell · 2024Article
- Phytochrome interacting factor 3 mediates low light signaling to regulate isorhynchophylline biosynthesis in Uncaria rhynchophylla.Scientific reports · 2024Article
- The phytochrome-interacting factor genes PIF1 and PIF4 are functionally diversified due to divergence of promoters and proteins.The Plant cell · 2024Article
- In silico analysis of the wheat BBX gene family and identification of candidate genes for seed dormancy and germination.BMC plant biology · 2024Article
- Functions of Phytochrome Interacting Factors (PIFs) in Adapting Plants to Biotic and Abiotic Stresses.International journal of molecular sciences · 2024Review
- Light regulation of the biosynthesis of phenolics, terpenoids, and alkaloids in plants.Communications biology · 2023Review
- Interaction of AcMADS68 with transcription factors regulates anthocyanin biosynthesis in red-fleshed kiwifruit.Horticulture research · 2023Article
- Combination analysis of single-molecule long-read and Illumina sequencing provides insights into the anthocyanin accumulation mechanism in an ornamental grass, Pennisetum setaceum cv. Rubrum.Plant molecular biology · 2022Article
- RNA-Seq Analysis Identifies Transcription Factors Involved in Anthocyanin Biosynthesis of 'Red Zaosu' Pear Peel and Functional Study ofInternational journal of molecular sciences · 2022Article
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Authors and funding
10 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Light affects many physiological and developmental processes of plants by regulating the expression and activity of light-responsive proteins. Among them, phytochrome interacting factors (PIFs) play pivotal roles in the regulation of anthocyanin accumulation and hypocotyl growth. However, the molecular mechanism is not well understood, especially in woody plants, such as apple (Malus × domestica). In this study, we identified a light-responsive PIF protein, MdPIF7, in apple and investigated the molecular mechanism of its regulation of anthocyanin biosynthesis and hypocotyl growth. We found that overexpression of MdPIF7 decreased anthocyanin accumulation in transgenic apple materials and promoted hypocotyl elongation in ectopically expressed Arabidopsis (Arabidopsis thaliana). Further investigation showed that MdPIF7 functioned by interacting with B-box 23 (MdBBX23), a positive regulator of anthocyanin biosynthesis in apple and hypocotyl growth inhibition in ectopically expressed Arabidopsis, and attenuating the transcriptional activation of MdBBX23 on LONG HYPOCOTYL 5 (MdHY5). In addition, MdPIF7 interacted with basic region leucine zipper 44 (MdbZIP44) and ethylene response factor 38 (MdERF38), two positive regulators of anthocyanin biosynthesis, and it negatively regulated MdbZIP44- and MdERF38-promoted anthocyanin accumulation by interfering with the interaction between MdbZIP44/MdERF38 and MdMYB1. Taken together, our results reveal that MdPIF7 regulates anthocyanin biosynthesis in apple and hypocotyl growth in ectopically expressed Arabidopsis through MdPIF7-MdBBX23-MdHY5 and MdPIF7-MdbZIP44/MdERF38-MdMYB1 modules. Our findings enrich the functional studies of PIF proteins and provide insights into the molecular mechanism of PIF-mediated anthocyanin biosynthesis and hypocotyl growth.
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