ArticlePlanta2023
OsTST1, a key tonoplast sugar transporter from source to sink, plays essential roles in affecting yields and height of rice (Oryza sativa L.).
Article in Planta, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 15 citations in OpenAlex.
- GeARF5/GeIAA33-GeSWEET14 module balances the secondary metabolic biosynthesis to increase the yield and quality in Gastrodia elata.Journal of integrative plant biology · 2026Article
- Molecular mechanisms and evolutionary adaptations of transporters for photosynthates and specialized metabolites in plants.Plant cell reports · 2026Review
- 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
- Overexpression of OsSTP1 increases grain yield via enhancing carbohydrate metabolism and transport in rice.Planta · 2024Article
- Current perspectives on the regulatory mechanisms of sucrose accumulation in sugarcane.Heliyon · 2024Review
- Article
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Authors and funding
8 authors at 3 institutions in 1 country.
Funding
Abstract
MAIN
conclusionOsTST1 affects yield and development and mediates sugar transportation of plants from source to sink in rice, which influences the accumulation of intermediate metabolites from tricarboxylic acid cycle indirectly. Tonoplast sugar transporters (TSTs) are essential for vacuolar sugar accumulation in plants. Carbohydrate transport across tonoplasts maintains the metabolic balance in plant cells, and carbohydrate distribution is crucial to plant growth and productivity. Large plant vacuoles store high concentrations of sugars to meet plant requirements for energy and other biological processes. The abundance of sugar transporter affects crop biomass and reproductive growth. However, it remains unclear whether the rice (Oryza sativa L.) sugar transport protein OsTST1 affects yield and development. In this study, we found that OsTST1 knockout mutants generated via CRISPR/Cas9 exhibited slower development, smaller seeds, and lower yield than wild type (WT) rice plants. Notably, plants overexpressing OsTST1 showed the opposite effects. Changes in rice leaves at 14 days after germination (DAG) and at 10 days after flowering (DAF) suggested that OsTST1 affected the accumulation of intermediate metabolites from the glycolytic pathway and the tricarboxylic acid (TCA) cycle. The modification of the sugar transport between cytosol and vacuole mediated by OsTST1 induces deregulation of several genes including transcription factors (TFs). In summary, no matter the location of sucrose and sink is, these preliminary results revealed that OsTST1 was important for sugar transport from source to sink tissues, thus affecting plant growth and development.
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