ArticleBMC plant biology2014
Arabidopsis PHOSPHATE TRANSPORTER1 genes PHT1;8 and PHT1;9 are involved in root-to-shoot translocation of orthophosphate.
Article in BMC plant biology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.
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51 citing papers in PubMed, 120 citations in OpenAlex.
- Sulfur in dialogue with phosphorus, nitrogen, and iron: regulatory networks in plant nutrient homeostasis.Journal of experimental botany · 2026Review
- Regulatory responses to phosphorus deficiency in pecan (Carya illinoinensis): transcriptomic and microscopic approaches.Journal of plant research · 2026Article
- Transcription factors in phosphorus utilization: enhancing crop productivity and stress resilience.Planta · 2026Review
- Identification of the phosphate transporter 1 family genes in the Eucalyptus grandis genome and their expression under different phosphate regimes.BMC genomics · 2026Article
- Role of Apyrase in Mobilization of Phosphate from Extracellular Nucleotides and in Regulating Phosphate Uptake in Arabidopsis.International journal of molecular sciences · 2025Article
- Concentration-Dependent N-P Interactions Cause Organ-Specific Responses and Nutrient Allocation in Poplar Seedlings.Plants (Basel, Switzerland) · 2025Article
- Organ-specific transcriptional and metabolic adaptations of potato plants to limited phosphate availability prior and after tuberization.The Plant journal : for cell and molecular biology · 2025Article
- MmPHR1 enhances low phosphorus stress tolerance by activating MmPHT1;5 in an elite apple rootstock -Malus mandshurica.BMC plant biology · 2025Article
- Genome-wide identification, expression analysis, and response to abiotic stress of the phosphate transporter gene family in cucumber (Cucumis sativus L.).BMC plant biology · 2025Article
- Sink strength, nutrient allocation, cannabinoid yield, and associated transcript profiles vary in two drug-type Cannabis chemovars.Journal of experimental botany · 2025Article
- Modified pea apyrase has altered nuclear functions and enhances the growth of yeast and Arabidopsis.Frontiers in plant science · 2025Article
- Milestones in understanding transport, sensing, and signaling of the plant nutrient phosphorus.The Plant cell · 2024Review
- The Impact of Various Organic Phosphorus Carriers on the Uptake and Use Efficiency in Barley.International journal of molecular sciences · 2023Article
- Phosphate TransporterPlants (Basel, Switzerland) · 2023Article
- Phosphorus Plays Key Roles in Regulating Plants' Physiological Responses to Abiotic Stresses.Plants (Basel, Switzerland) · 2023Review
- Making watercress (Frontiers in plant science · 2023Article
- Narrowing down molecular targets for improving phosphorus-use efficiency in maize (Zea mays L.).Molecular biology reports · 2022Review
- Adaptive strategies of plants to conserve internal phosphorus under P deficient condition to improve P utilization efficiency.Physiology and molecular biology of plants : an international journal of functional plant biology · 2022Review
- Systematic Identification and Expression Analysis of the SorghumInternational journal of molecular sciences · 2022Article
- Cross-Talk between Transcriptome Analysis and Physiological Characterization Identifies the Genes in Response to the Low Phosphorus Stress inInternational journal of molecular sciences · 2022Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundIn plants, the uptake from soil and intercellular transport of inorganic phosphate (Pi) is mediated by the PHT1 family of membrane-spanning proton : Pi symporters. The Arabidopsis thaliana AtPHT1 gene family comprises nine putative high-affinity Pi transporters. While AtPHT1;1 to AtPHT1;4 are involved in Pi acquisition from the rhizosphere, the role of the remaining transporters is less clear.
resultsPi uptake and tissue accumulation studies in AtPHT1;8 and AtPHT1;9 knock-out mutants compared to wild-type plants showed that both transporters are involved in the translocation of Pi from the root to the shoot. Upon inactivation of AtPHT1;9, changes in the transcript profiles of several genes that respond to plant phosphorus (P) status indicated a possible role in the regulation of systemic signaling of P status within the plant. Potential genetic interactions were found among PHT1 transporters, as the transcript profile of AtPHT1;5 and AtPHT1;7 was altered in the absence of AtPHT1;8, and the transcript profile of AtPHT1;7 was altered in the Atpht1;9 mutant. These results indicate that AtPHT1;8 and AtPHT1;9 translocate Pi from the root to the shoot, but not from the soil solution into the root.
conclusionAtPHT1;8 and AtPHT1;9 are likely to act sequentially in the interior of the plant during the root-to-shoot translocation of Pi, and play a more complex role in the acclimation of A. thaliana to changes in Pi supply than was previously thought.
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