ArticlePlant physiology2006
Pathway of sugar transport in germinating wheat seeds.
Article in Plant physiology, 2006. 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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Who cites it
44 citing papers in PubMed, 125 citations in OpenAlex.
- Article
- Sugar and Free Amino Acid Contents in Winter Wheat Flour Under Fusarium Head Blight Treatment and Natural Infection.Plants (Basel, Switzerland) · 2025Article
- Lipid remodeling and response mechanisms during the germination of aged oat seeds.BMC plant biology · 2025Article
- Overexpression of CassavaPlants (Basel, Switzerland) · 2024Article
- Magnetic Resonance Imaging-Based Monitoring of the Accumulation of Polyethylene Terephthalate Nanoplastics.Molecules (Basel, Switzerland) · 2024Article
- Cell-type proteomic and metabolomic resolution of early and late grain filling stages of wheat endosperm.Plant biotechnology journal · 2024Article
- Review
- A molecular mechanism for embryonic resetting of winter memory and restoration of winter annual growth habit in wheat.Nature plants · 2024Article
- Zinc Oxide Nanoparticles Affect Early Seedlings' Growth and Polar Metabolite Profiles of Pea (International journal of molecular sciences · 2023Article
- Exogenously Applied Cyclitols and Biosynthesized Silver Nanoparticles Affect the Soluble Carbohydrate Profiles of Wheat (Plants (Basel, Switzerland) · 2023Article
- RNA-seq study reveals the signaling and carbohydrate metabolism regulators involved in dormancy release by warm stratification inPlant biotechnology (Tokyo, Japan) · 2022Article
- The Size-Dependent Effects of Silver Nanoparticles on Germination, Early Seedling Development and Polar Metabolite Profile of Wheat (International journal of molecular sciences · 2022Article
- The Effect of Bio-Synthesized Silver Nanoparticles on Germination, Early Seedling Development, and Metabolome of Wheat (Molecules (Basel, Switzerland) · 2022Article
- Changes and response mechanism of sugar and organic acids in fruits under water deficit stress.PeerJ · 2022Review
- Nutritional and end-use perspectives of sprouted grains: A comprehensive review.Food science & nutrition · 2021Review
- Molecular Control of Oil Metabolism in the Endosperm of Seeds.International journal of molecular sciences · 2021Review
- Phenotypic Evaluation and Genetic Analysis of Seedling Emergence in a Global Collection of Wheat Genotypes (Frontiers in plant science · 2021Article
- Matrix-Assisted Laser Desorption/Ionization-Mass Spectrometry Imaging of Metabolites during Sorghum Germination.Plant physiology · 2020Article
- RicePlant physiology · 2020Article
- Improved Yield and Photosynthate Partitioning in AVP1 Expressing Wheat (Frontiers in plant science · 2020Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Three homeologous genes encoding a sucrose (Suc) transporter (SUT) in hexaploid wheat (Triticum aestivum), TaSUT1A, 1B, and 1D, were expressed in germinating seeds, where their function is unknown. All three TaSUT1 proteins were confirmed to be capable of transporting both Suc and maltose by complementation tests with the SUSY7/ura3 yeast (Saccharomyces cerevisiae) mutant strain. The role of Suc transporters in germinating grain was examined by combining in situ hybridization, immunolocalization, fluorescent dye tracer movement, and metabolite assays. TaSUT1 transcript and SUT protein were detected in cells of the aleurone layer, scutellar epidermis, scutellar ground cells, and sieve element-companion cell complexes located in the scutellum, shoot, and root. Ester loading of the membrane-impermeable fluorescent dye carboxyfluorescein into the scutellum epidermal cells of germinating seeds showed that a symplasmic pathway connects the scutellum to the shoot and root via the phloem. However, the scutellar epidermis provides an apoplasmic barrier to solute movement from endosperm tissue. Measurements of sugars in the root, shoot, endosperm, and scutellum suggest that, following degradation of endosperm starch, the resulting hexoses are converted to Suc in the scutellum. Suc was found to be the major sugar present in the endosperm early in germination, whereas maltose and glucose predominate during the later stage. It is proposed that loading the scutellar phloem in germinating wheat seeds can proceed by symplasmic and apoplasmic pathways, the latter facilitated by SUT activity. In addition, SUTs may function to transport Suc into the scutellum from the endosperm early in germination and later transport maltose.
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