ArticleThe Plant cell2006
Molecular identification and physiological characterization of a novel monosaccharide transporter from Arabidopsis involved in vacuolar sugar transport.
Article in The Plant cell, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 127 papers.
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127 citing papers in PubMed, 309 citations in OpenAlex.
- Genomic Expansion and Subgenome Expression Divergence of Sugar Transporters During Polyploid Evolution of Bamboos.Biology · 2026Article
- Comprehensive DIA-MS Proteomics of Root Basal Nodes Elucidates Mechanisms of Salt Tolerance in Rice.Proteomics · 2026Article
- Epigenetic Control of Cold Stress Tolerance in Plants: Emerging Mechanisms and Applications for Crop Improvement.International journal of molecular sciences · 2026Review
- Transcriptional Regulation of SWEET15_A01 by MYB44/bHLH3 Modulates Carbon Allocation in Cotton Ovule and Fibre to Affect Seed and Fibre Traits.Plant biotechnology journal · 2026Article
- Analysis of the TIL gene family in Brassicaceae species and functional study ofFrontiers in plant science · 2026Article
- Article
- How vacuolar sugar transporters evolve and control cellular sugar homeostasis, organ development and crop yield.Nature plants · 2025Review
- Tonoplast sugar transporters coordinately regulate tomato fruit development and quality.Plant communications · 2025Article
- Cotton transposon-related variome reveals roles of transposon-related variations in modern cotton cultivation.Journal of advanced research · 2025Article
- Major Facilitator Superfamily transporters balance sugar metabolism in peach.Plant physiology · 2025Article
- The transcription factors ERF105 and NAC72 regulate expression of a sugar transporter gene and hexose accumulation in grape.The Plant cell · 2024Article
- Apple vacuolar sugar transporters regulated by MdDREB2A enhance drought resistance by promoting accumulation of soluble sugars and activating ABA signaling.Horticulture research · 2024Article
- Genome wide identification of BjSWEET gene family and drought response analysis of BjSWEET12 and BjSWEET17 genes in Brassica juncea.BMC plant biology · 2024Article
- Symplasmic phloem loading and subcellular transport in storage roots are key factors for carbon allocation in cassava.Plant physiology · 2024Article
- Genetic association analysis in sugarcane (Saccharum spp.) for sucrose accumulation in humid environments in Colombia.BMC plant biology · 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
- Identification and Expression Analysis of Putative Sugar Transporter Gene Family during Bulb Formation in Lilies.International journal of molecular sciences · 2024Article
- Current perspectives on the regulatory mechanisms of sucrose accumulation in sugarcane.Heliyon · 2024Review
- Types of Membrane Transporters and the Mechanisms of Interaction between Them and Reactive Oxygen Species in Plants.Antioxidants (Basel, Switzerland) · 2024Review
- Genome-Wide Bioinformatics Analysis ofPlants (Basel, Switzerland) · 2024Article
67 more citing papers are in PubMed but not listed here.
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Authors and funding
9 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The tonoplast monosaccharide transporter (TMT) family comprises three isoforms in Arabidopsis thaliana, and TMT-green fluorescent protein fusion proteins are targeted to the vacuolar membrane. TMT promoter-beta-glucuronidase plants revealed that the TONOPLAST MONOSACCHARIDE TRANSPORTER1 (TMT1) and TMT2 genes exhibit a tissue- and cell type-specific expression pattern, whereas TMT3 is only weakly expressed. TMT1 and TMT2 expression is induced by drought, salt, and cold treatments and by sugar. During cold adaptation, tmt knockout lines accumulated less glucose and fructose compared with wild-type plants, whereas no differences were observed for sucrose. Cold adaptation of wild-type plants substantially promoted glucose uptake into isolated leaf mesophyll vacuoles. Glucose uptake into isolated vacuoles was inhibited by NH(4)(+), fructose, and phlorizin, indicating that transport is energy-dependent and that both glucose and fructose were taken up by the same carrier. Glucose import into vacuoles from two cold-induced tmt1 knockout lines or from triple knockout plants was substantially lower than into corresponding wild-type vacuoles. Monosaccharide feeding into leaf discs revealed the strongest response to sugar in tmt1 knockout lines compared with wild-type plants, suggesting that TMT1 is required for cytosolic glucose homeostasis. Our results indicate that TMT1 is involved in vacuolar monosaccharide transport and plays a major role during stress responses.
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