ArticleThe Plant cell2023
PHOSPHATE STARVATION RESPONSE1 (PHR1) interacts with JASMONATE ZIM-DOMAIN (JAZ) and MYC2 to modulate phosphate deficiency-induced jasmonate signaling in Arabidopsis.
Article in The Plant cell, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.
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44 citing papers in PubMed, 110 citations in OpenAlex.
- Arabidopsis inositol polyphosphate kinase activities regulate COP9 deneddylation functions in phosphate homeostasis.Journal of integrative plant biology · 2026Article
- SlMED25-SlPHR3-SlSPX2 module fine-tunes SlPHR3-mediated transcriptional activation of phosphate starvation response in tomato.Journal of integrative plant biology · 2026Article
- Unraveling competitive protein interactions: A critical step toward improved production and therapeutics.Journal of advanced research · 2026Review
- Coordinated MBW, GIS, and RSL Regulatory Networks in Plant Epidermal Patterning Under Environmental Cues.International journal of molecular sciences · 2026Review
- Transcription factors in phosphorus utilization: enhancing crop productivity and stress resilience.Planta · 2026Review
- Genome-Wide Identification of thePlants (Basel, Switzerland) · 2026Article
- PPSR1 Protein Functions as an Important Regulator to Enhance Plant Growth Performance Under N, P, and K Deficient Stress Conditions.Plant biotechnology journal · 2026Article
- Holistic overview of regulatory networks governing seed dormancy and germination in plants.Science China. Life sciences · 2026Review
- Transcriptome Analysis and Functional Validation of JAZ Subfamily Genes ofInternational journal of molecular sciences · 2026Article
- Candidate genes and molecular mechanisms regulating tiller development in wild Kentucky bluegrass.BMC plant biology · 2026Article
- Transcriptome analysis and physiological indicators reveal the role of physiological integration in heterogeneous cadmium and phenanthrene stress inFrontiers in plant science · 2026Article
- Robustness in jasmonate signaling: mechanisms of concerted regulation and implications for crop improvement.aBIOTECH · 2025Review
- Rapid acquisition of ionomic and morphological data from plant seeds through fast X-ray fluorescence microscopy and computer vision.Plant phenomics (Washington, D.C.) · 2025Article
- The apple phosphate starvation response transcription factor MdPHR1 positively regulates zinc and cadmium tolerance.Plant cell reports · 2025Article
- Concentration-Dependent N-P Interactions Cause Organ-Specific Responses and Nutrient Allocation in Poplar Seedlings.Plants (Basel, Switzerland) · 2025Article
- To immunity and beyond: the central role of jasmonate signalling in beneficial root-microbe-environment interactions.The New phytologist · 2025Review
- Enhancing inositol pyrophosphate accumulation in plants alters growth, phosphate homeostasis, and insect herbivory.The Plant journal : for cell and molecular biology · 2025Article
- Genome-Wide Analysis and Expression Profiling of the JAZ Gene Family in Response to Abiotic Stress in Alfalfa.International journal of molecular sciences · 2025Article
- The Impact of Nitrogen and Phosphorus Interaction on Growth, Nutrient Absorption, and Signal Regulation in Woody Plants.Biology · 2025Article
- Decoding PHR-Orchestrated Stress Adaptation: A Genome-Wide Integrative Analysis of Transcriptional Regulation Under Abiotic Stress inInternational journal of molecular sciences · 2025Article
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10 authors at 2 institutions in 1 country.
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Abstract
Phosphorus (P) is a macronutrient necessary for plant growth and development. Inorganic phosphate (Pi) deficiency modulates the signaling pathway of the phytohormone jasmonate in Arabidopsis thaliana, but the underlying molecular mechanism currently remains elusive. Here, we confirmed that jasmonate signaling was enhanced under low Pi conditions, and the CORONATINE INSENSITIVE1 (COI1)-mediated pathway is critical for this process. A mechanistic investigation revealed that several JASMONATE ZIM-DOMAIN (JAZ) repressors physically interacted with the Pi signaling-related core transcription factors PHOSPHATE STARVATION RESPONSE1 (PHR1), PHR1-LIKE2 (PHL2), and PHL3. Phenotypic analyses showed that PHR1 and its homologs positively regulated jasmonate-induced anthocyanin accumulation and root growth inhibition. PHR1 stimulated the expression of several jasmonate-responsive genes, whereas JAZ proteins interfered with its transcriptional function. Furthermore, PHR1 physically associated with the basic helix-loop-helix (bHLH) transcription factors MYC2, MYC3, and MYC4. Genetic analyses and biochemical assays indicated that PHR1 and MYC2 synergistically increased the transcription of downstream jasmonate-responsive genes and enhanced the responses to jasmonate. Collectively, our study reveals the crucial regulatory roles of PHR1 in modulating jasmonate responses and provides a mechanistic understanding of how PHR1 functions together with JAZ and MYC2 to maintain the appropriate level of jasmonate signaling under conditions of Pi deficiency.
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