ArticleJournal of experimental botany2010
Disruption of a gene for rice sucrose transporter, OsSUT1, impairs pollen function but pollen maturation is unaffected.
Article in Journal of experimental botany, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers.
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Who cites it
53 citing papers in PubMed, 112 citations in OpenAlex.
- The OsWRKY15-OsSUT3 Regulatory Module Enhances Rice Pollen Fertility by Mediating Sucrose Allocation to Anthers.Plant biotechnology journal · 2026Article
- Plant SUT Sucrose Transporters: Structure, Evolution and Biological Functions.Current protein & peptide science · 2026Review
- Article
- Nanotechnology-driven coordination of shoot-root systems enhances rice nitrogen use efficiency.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Genetic and molecular mechanisms underlying the male sterility in rice.Journal of applied genetics · 2025Review
- Carbohydrate flow during grain filling: Phytohormonal regulation and genetic control in rice (Oryza sativa).Journal of integrative plant biology · 2025Review
- Gene Pyramiding Strategies for Sink Size and Source Capacity for High-Yield Japonica Rice Breeding.Rice (New York, N.Y.) · 2025Review
- Increased Photosynthetic Capacity and Energy Status Contribute to Higher Grain Yield in Early Rice.International journal of molecular sciences · 2025Article
- Research progress and application strategies of sugar transport mechanisms in rice.Frontiers in plant science · 2024Review
- Comparative transcriptome analysis reveals candidate genes for cold stress response and early flowering in pineapple.Scientific reports · 2023Article
- Transcriptome Analyses Show Changes in Gene Expression Triggered by a 31-bp InDel withinInternational journal of molecular sciences · 2023Article
- MATE transporter GFD1 cooperates with sugar transporters, mediates carbohydrate partitioning and controls grain-filling duration, grain size and number in rice.Plant biotechnology journal · 2023Article
- Cytosolic disproportionating enzyme2 is essential for pollen germination and pollen tube elongation in rice.Plant physiology · 2023Article
- Comparative cytological and transcriptome analyses ofFrontiers in plant science · 2023Article
- An uncharacterized protein NY1 targets EAT1 to regulate anther tapetum development in polyploid rice.BMC plant biology · 2022Article
- Exploration of Sugar and Starch Metabolic Pathway Crucial for Pollen Fertility in Rice.International journal of molecular sciences · 2022Review
- Sucrose rather than GA transported by AtSWEET13 and AtSWEET14 supports pollen fitness at late anther development stages.The New phytologist · 2022Article
- Auxin regulates source-sink carbohydrate partitioning and reproductive organ development in rice.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- An overview of sucrose transporter (SUT) genes family in rice.Molecular biology reports · 2022Article
- Hexose translocation mediated by SlSWEET5b is required for pollen maturation in Solanum lycopersicum.Plant physiology · 2022Article
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Authors and funding
6 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Sucrose transporters (SUTs) are known to play critical roles in the uptake of sucrose from the apoplast in various steps of sugar translocation. Because developing pollen is symplastically isolated from anther tissues, it is hypothesized that SUTs are active in the uptake of apoplastic sucrose into pollen. To investigate this possibility, a comprehensive expression analysis was performed for members of the SUT gene family in the developing pollen of rice (Oryza sativa L.) using real-time RT-PCR combined with a laser microdissection technique. Among the five SUT genes, OsSUT1 and OsSUT3 were found to be preferentially expressed and had temporal expression patterns that were distinct from each other. Expression of OsSUT1 in pollen was confirmed by a promoter-GUS fusion assay. The physiological function of OsSUT1 in pollen was further investigated using retrotransposon insertion mutant lines. While the homozygote of disrupted OsSUT1 (SUT1-/-) could not be obtained, heterozygote plants (SUT1+/-) showed normal grain filling. Their progeny segregated into SUT1+/- and SUT1+/+ with the ratio of 1:1, suggesting that the pollen disrupted for OsSUT1 is dysfunctional. This hypothesis was reinforced in vivo by a backcross of SUT1+/- plants with wild-type plants and also by in vitro pollen germination on the artificial media. However, starch accumulation during pollen development was not affected by disruption of OsSUT1, suggesting that the sugar(s) required for starch biosynthesis is supplied by other sugar transporters.
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