ArticleBMC plant biology2025
The SWEET14 sugar transporter mediates mycorrhizal symbiosis and carbon allocation in Dendrobium officinale.
Article in BMC plant biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Biocontrol Efficiency of Endophytic Fungi Against Stem-Rot inMicroorganisms · 2026Article
- Rhizospheric soil microbial community structure and metabolic characteristics of wildFrontiers in microbiology · 2026Article
- Bacillus subtilis Reprograms the Host Transcriptome and Rhizosphere Microbiome in Garden Pea With Effects Consistent With Systemic Responses to Alkaline Stress.Physiologia plantarumArticle
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10 authors.
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Abstract
Orchid mycorrhizal (OM) fungi form mutualistic relationships with orchids, facilitating the uptake of minerals from the soil in exchange for sugars and lipids provided by the plant. In this study, we explored the role of the DoSWEET14 sugar transporter in Dendrobium officinale during OM symbiosis. Transcriptome sequencing revealed significant changes in gene expression in mycorrhizal roots, particularly the upregulation of DoSWEET14. Subcellular localization studies confirmed that DoSWEET14 is localized to the plasma membrane, suggesting its involvement in nutrient exchange between the orchid and OM fungi. Complementation assays using a yeast strain deficient in hexose transport demonstrated that DoSWEET14 has broad substrate specificity, efficiently transporting multiple monosaccharides. Additionally, overexpression of DoSWEET14 in Arabidopsis increased sugar content without affecting biomass, supporting its role in carbohydrate transport and storage during symbiosis. These findings suggest that DoSWEET14 plays a key role in regulating carbon allocation and stabilizing the mutualistic relationship between Dendrobium officinale and OM fungi.
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