ArticleThe Plant cell2005
Arabidopsis POLYOL TRANSPORTER5, a new member of the monosaccharide transporter-like superfamily, mediates H+-Symport of numerous substrates, including myo-inositol, glycerol, and ribose.
Article in The Plant cell, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers.
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69 citing papers in PubMed, 177 citations in OpenAlex.
- Molecular mechanisms and evolutionary adaptations of transporters for photosynthates and specialized metabolites in plants.Plant cell reports · 2026Review
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- Linking extreme light availability to cellular function in algae-dominated communities on the Greenland Ice Sheet.FEMS microbiology ecology · 2025Article
- Crop growth model-enabled genetic mapping of biomass accumulation dynamics in photoperiod-sensitive sorghum.The plant genome · 2025Article
- Beware of Sealing Film of Petri Dishes!-Alters the Expression of a Large Number of Genes.International journal of molecular sciences · 2025Article
- Sugars, Lipids and More: New Insights Into Plant Carbon Sources During Plant-Microbe Interactions.Plant, cell & environment · 2025Review
- Genome-wide identification and expression profiling of MST, SUT and SWEET transporters in Dendrobium catenatum.BMC genomics · 2024Article
- Genome-wide identification and investigation of monosaccharide transporter gene family based on their evolution and expression analysis under abiotic stress and hormone treatments in maize (Zea mays L.).BMC plant biology · 2024Article
- Genome-wide analysis of sugar transporter gene family inFrontiers in plant science · 2024Article
- Elemental profiling and genome-wide association studies reveal genomic variants modulating ionomic composition inFrontiers in plant science · 2024Article
- Breeding and biotechnology approaches to enhance the nutritional quality of rapeseed byproducts for sustainable alternative protein sources- a critical review.Frontiers in plant science · 2024Review
- The sugar transporter ZmSUGCAR1 of the nitrate transporter 1/peptide transporter family is critical for maize grain filling.The Plant cell · 2022Article
- Mobile forms of carbon in trees: metabolism and transport.Tree physiology · 2022Review
- The Tiny Companion Matters: The Important Role of Protons in Active Transports in Plants.International journal of molecular sciences · 2022Review
- Genomic Regions Associated With Seed Meal Quality Traits inFrontiers in plant science · 2022Article
- Transcriptome and Small RNA Sequencing Reveal the Mechanisms Regulating Harvest Index inFrontiers in plant science · 2022Article
- Sucrose promotes stem branching through cytokinin.Plant physiology · 2021Article
- Article
9 more citing papers are in PubMed but not listed here.
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Authors and funding
8 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Six genes of the Arabidopsis thaliana monosaccharide transporter-like (MST-like) superfamily share significant homology with polyol transporter genes previously identified in plants translocating polyols (mannitol or sorbitol) in their phloem (celery [Apium graveolens], common plantain [Plantago major], or sour cherry [Prunus cerasus]). The physiological role and the functional properties of this group of proteins were unclear in Arabidopsis, which translocates sucrose and small amounts of raffinose rather than polyols. Here, we describe POLYOL TRANSPORTER5 (AtPLT5), the first member of this subgroup of Arabidopsis MST-like transporters. Transient expression of an AtPLT5-green fluorescent protein fusion in plant cells and functional analyses of the AtPLT5 protein in yeast and Xenopus oocytes demonstrate that AtPLT5 is located in the plasma membrane and characterize this protein as a broad-spectrum H+-symporter for linear polyols, such as sorbitol, xylitol, erythritol, or glycerol. Unexpectedly, however, AtPLT5 catalyzes also the transport of the cyclic polyol myo-inositol and of different hexoses and pentoses, including ribose, a sugar that is not transported by any of the previously characterized plant sugar transporters. RT-PCR analyses and AtPLT5 promoter-reporter gene plants revealed that AtPLT5 is most strongly expressed in Arabidopsis roots, but also in the vascular tissue of leaves and in specific floral organs. The potential physiological role of AtPLT5 is discussed.
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