ArticleJournal of experimental botany2012
Regulators of floral fragrance production and their target genes in petunia are not exclusively active in the epidermal cells of petals.
Article in Journal of experimental botany, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed, 44 citations in OpenAlex.
- Floral volatile benzenoids/phenylpropanoids: biosynthetic pathway, regulation and ecological value.Horticulture research · 2024Article
- The R2R3-MYB transcription factor EVER controls the emission of petunia floral volatiles by regulating epicuticular wax biosynthesis in the petal epidermis.The Plant cell · 2023Article
- The Promoter Analysis ofPlants (Basel, Switzerland) · 2022Article
- ODORANT1 targets multiple metabolic networks in petunia flowers.The Plant journal : for cell and molecular biology · 2022Article
- Floral Scents and Fruit Aromas: Functions, Compositions, Biosynthesis, and Regulation.Frontiers in plant science · 2022Review
- Detection of Reproducible Major Effect QTL for Petal Traits in Garden Roses.Plants (Basel, Switzerland) · 2021Article
- Two-dimensional analysis provides molecular insight into flower scent of Lilium 'Siberia'.Scientific reports · 2018Article
- Transcriptome analysis of Petunia axillaris flowers reveals genes involved in morphological differentiation and metabolite transport.PloS one · 2018Article
- Phenylpropanoid Scent Compounds inFrontiers in plant science · 2017Article
- Biotechnological Advancements for Improving Floral Attributes in Ornamental Plants.Frontiers in plant science · 2017Review
- Differential Gene Expression Analysis inFrontiers in plant science · 2017Article
- CCoAOMT Down-Regulation Activates Anthocyanin Biosynthesis in Petunia.Plant physiology · 2016Article
- Circadian clock gene LATE ELONGATED HYPOCOTYL directly regulates the timing of floral scent emission in Petunia.Proceedings of the National Academy of Sciences of the United States of America · 2015Article
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In which cells of the flower volatile biosynthesis takes place is unclear. In rose and snapdragon, some enzymes of the volatile phenylpropanoid/benzenoid pathway have been shown to be present in the epidermal cells of petals. It is therefore generally believed that the production of these compounds occurs in these cells. However, whether the entire pathway is active in these cells and whether it is exclusively active in these cells remains to be proven. Cell-specific transcription factors activating these genes will determine in which cells they are expressed. In petunia, the transcription factor EMISSION OF BENZENOIDS II (EOBII) activates the ODORANT1 (ODO1) promoter and the promoter of the biosynthetic gene isoeugenol synthase (IGS). The regulator ODO1 in turn activates the promoter of the shikimate gene 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS). Here the identification of a new target gene of ODO1, encoding an ABC transporter localized on the plasma membrane, PhABCG1, which is co-expressed with ODO1, is described. PhABCG1 expression is up-regulated in petals overexpressing ODO1 through activation of the PhABCG1 promoter. Interestingly, the ODO1, PhABCG1, and IGS promoters were active in petunia protoplasts originating from both epidermal and mesophyll cell layers of the petal, suggesting that the volatile phenylpropanoid/benzenoid pathway in petunia is active in these different cell types. Since volatile release occurs from epidermal cells, trafficking of (volatile) compounds between cell layers must be involved, but the exact function of PhABCG1 remains to be resolved.
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