ArticlePlant signaling & behavior2008
Differential expression and phylogenetic analysis suggest specialization of plastid-localized members of the PHT4 phosphate transporter family for photosynthetic and heterotrophic tissues.
Article in Plant signaling & behavior, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.
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30 citing papers in PubMed, 58 citations in OpenAlex.
- Genome-wide characterization of the PHT gene family in Uncaria rhynchophylla identified UrPHT1;11 as a key regulator to low phosphorus response.BMC plant biology · 2026Article
- Characterizing genetic adaptations and plastic stress responses within a transcontinental North American keystone species.Tree physiology · 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
- Integrating molecular mechanisms and agronomic strategies for selenium biofortification in horticultural crops.Frontiers in plant science · 2025Review
- From genes to traits: maximizing phosphorus utilization efficiency in crop plants.Frontiers in plant science · 2025Review
- Genome-Wide Transcriptional Profiling and Functional Analysis Reveal That OsPHT4;4 Is Critical for the Growth and Development of Rice.International journal of molecular sciences · 2024Article
- Chloroplast phosphate transporter CrPHT4-7 regulates phosphate homeostasis and photosynthesis in Chlamydomonas.Plant physiology · 2024Article
- Roles of plastid-located phosphate transporters in carotenoid accumulation.Frontiers in plant science · 2022Review
- Review
- Potential Networks of Nitrogen-Phosphorus-Potassium Channels and Transporters in Arabidopsis Roots at a Single Cell Resolution.Frontiers in plant science · 2021Article
- Transcriptional and Morpho-Physiological Responses ofInternational journal of molecular sciences · 2020Article
- Genome-Wide Analysis of the Five Phosphate Transporter Families inInternational journal of molecular sciences · 2020Article
- The Rice Phosphate Transporter Protein OsPT8 Regulates Disease Resistance and Plant Growth.Scientific reports · 2019Article
- Article
- Cellular and Subcellular Phosphate Transport Machinery in Plants.International journal of molecular sciences · 2018Review
- Vitamin C Content in Fruits: Biosynthesis and Regulation.Frontiers in plant science · 2018Review
- Integrated analysis of 454 and Illumina transcriptomic sequencing characterizes carbon flux and energy source for fatty acid synthesis in developingBiotechnology for biofuels · 2017Article
- BOTRYTIS-INDUCED KINASE1, a plasma membrane-localized receptor-like protein kinase, is a negative regulator of phosphate homeostasis in Arabidopsis thaliana.BMC plant biology · 2016Article
- Identification of plant vacuolar transporters mediating phosphate storage.Nature communications · 2016Article
- Phosphate Uptake and Allocation - A Closer Look at Arabidopsis thaliana L. and Oryza sativa L.Frontiers in plant science · 2016Review
Corrections and comments
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Authors and funding
4 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Plastids rely on multiple phosphate (Pi) transport activities to support and control a wide range of metabolic processes, including photosynthesis and carbon partitioning. Five of the six members of the PHT4 family of Pi transporters in Arabidopsis thaliana (PHT4;1-PHT4;5) are confirmed or predicted plastid proteins. As a step towards identifying the roles of individual PHT4 Pi transporters in chloroplast and non-photosynthetic plastid Pi dynamics, we used promoter-reporter gene fusions and quantitative RT-PCR studies, respectively, to determine spatial and diurnal gene expression patterns. PHT4;1 and PHT4;4 were both expressed predominantly in photosynthetic tissues, although expression of PHT4;1 was circadian and PHT4;4 was induced by light. PHT4;3 and PHT4;5 were expressed mainly in leaf phloem. PHT4;2 was expressed throughout the root, and exhibited a diurnal pattern with peak transcript levels in the dark. The remaining member of this gene family, PHT4;6, encodes a Golgi-localized protein and was expressed ubiquitously. The overlapping but distinct expression patterns for these genes suggest specialized roles for the encoded transporters in multiple types of differentiated plastids. Phylogenetic analysis revealed conservation of each of the orthologous members of the PHT4 family in Arabidopsis and rice, which is consistent with specialization, and suggests that the individual members of this transporter family diverged prior to the divergence of monocots and dicots.
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