ArticlePlanta2018
UGT79B31 is responsible for the final modification step of pollen-specific flavonoid biosynthesis in Petunia hybrida.
Article in Planta, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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Who cites it
19 citing papers in PubMed, 56 citations in OpenAlex.
- Untargeted metabolomics suggests a trade-off between phenolamides and flavonoids in the pollen of Petunia hybrida with contrasting flower colours.BMC plant biology · 2026Article
- Integrative analysis of the metabolome and transcriptome reveals the mechanism of flower color and antioxidant capacity in threeFrontiers in plant science · 2026Article
- Tomato pollen tube growth requires flavonol glycosylation.Plant physiology · 2025Article
- Genetic basis for broad interspecific compatibility in Solanum verrucosum.The Plant journal : for cell and molecular biology · 2025Article
- Insights into the Molecular Basis of Pollen Coat Development and Its Role in Male Sterility.International journal of molecular sciences · 2025Review
- Biosynthesis and Physiological Significance of Organ-Specific Flavonol Glycosides in Solanaceae.bioRxiv : the preprint server for biology · 2025Article
- Development of phytochemical genomics: From decoding metabolome to functional genomics and biotechnology of plant metabolism.Proceedings of the Japan Academy. Series B, Physical and biological sciences · 2025Review
- Leaf pigmentation inPlant direct · 2024Article
- Genome-wide investigation of UDP-Glycosyltransferase family in Tartary buckwheat (Fagopyrum tataricum).BMC plant biology · 2024Article
- Genome-wide analysis of UDP-glycosyltransferases family and identification of UGT genes involved in abiotic stress and flavonol biosynthesis in Nicotiana tabacum.BMC plant biology · 2023Article
- KIPEs3: Automatic annotation of biosynthesis pathways.PloS one · 2023Article
- A Novel 3-International journal of molecular sciences · 2022Article
- Genome-wide analysis ofSynthetic and systems biotechnology · 2022Article
- Transcriptomic, Proteomic and Metabolomic Analysis of Flavonoid Biosynthesis During Fruit Maturation inFrontiers in plant science · 2021Article
- Tandem UGT71B5s Catalyze Lignan Glycosylation inFrontiers in plant science · 2021Article
- The Tapetal Major Facilitator NPF2.8 Is Required for Accumulation of Flavonol Glycosides on the Pollen Surface inThe Plant cell · 2020Article
- Identification of the Core Pollen-Specific Regulation in the RiceInternational journal of molecular sciences · 2020Article
- Transcriptome analysis revealed expression of genes related to anthocyanin biosynthesis in eggplant (Solanum melongena L.) under high-temperature stress.BMC plant biology · 2019Article
- Functional characterization of three flavonoid glycosyltransferases fromRoyal Society open science · 2019Article
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6 authors at 2 institutions in 1 country.
Funding
Abstract
MAIN
conclusionUGT79B31 encodes flavonol 3- O -glycoside: 2″- O -glucosyltransferase, an enzyme responsible for the terminal modification of pollen-specific flavonols in Petunia hybrida. Flavonoids are known to be involved in pollen fertility in petunia (P. hybrida) and maize (Zea mays). As a first step toward elucidating the role of flavonoids in pollen, we have identified a glycosyltransferase that is responsible for the terminal modification of petunia pollen-specific flavonoids. An in silico search of the petunia transcriptome database revealed four candidate UDP-glycosyltransferase (UGT) genes. UGT79B31 was selected for further analyses based on a correlation between the accumulation pattern of flavonol glycosides in various tissues and organs and the expression profiles of the candidate genes. Arabidopsis ugt79b6 mutants that lacked kaempferol/quercetin 3-O-glucosyl(1 → 2)glucosides, were complemented by transformation with UGT79B31 cDNA under the control of Arabidopsis UGT79B6 promoter, showing that UGT79B31 functions as a flavonol 3-O-glucoside: 2″-O-glucosyltransferase in planta. Recombinant UGT79B31 protein can convert kaempferol 3-O-galactoside/glucoside to kaempferol 3-O-glucosyl(1 → 2)galactoside/glucoside. UGT79B31 prefers flavonol 3-O-galactosides to the 3-O-glucosides and rarely accepted the 3-O-diglycosides as sugar acceptors. UDP-glucose was the preferred sugar donor for UGT79B31. These results indicated that UGT79B31 encodes a flavonoid 3-O-glycoside: 2″-O-glucosyltransferase. Transient expression of UGT79B31 fused to green fluorescent protein (GFP) in Nicotiana benthamiana showed that UGT79B31 protein was localized in the cytosol.
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