ArticlePlant physiology2014
Polar auxin transport is essential for medial versus lateral tissue specification and vascular-mediated valve outgrowth in Arabidopsis gynoecia.
Article in Plant physiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.
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37 citing papers in PubMed, 77 citations in OpenAlex.
- Towards an integrated molecular understanding of plant hormones.Journal of integrative plant biology · 2026Review
- Auxin and cytokinin regulate growth dynamics underlying carpel initiation in Arabidopsis.Journal of experimental botany · 2026Article
- "Bud to bloom"-hormonal coordination in floral initiation.Plant biology (Stuttgart, Germany) · 2025Review
- Cytokinin-responsive P-type cyclins control Arabidopsis radial style morphology.The Plant journal : for cell and molecular biology · 2025Article
- Silencing ofFrontiers in plant science · 2025Article
- 'Organ'ising Floral Organ Development.Plants (Basel, Switzerland) · 2024Review
- O-glycosylation of the transcription factor SPATULA promotes style development in Arabidopsis.Nature plants · 2024Article
- Reciprocal expression of MADS-box genes and DNA methylation reconfiguration initiate bisexual cones in spruce.Communications biology · 2024Article
- Hormones and Flower Development in Arabidopsis.Methods in molecular biology (Clifton, N.J.) · 2023Article
- PIN3 positively regulates the late initiation of ovule primordia in Arabidopsis thaliana.PLoS genetics · 2022Article
- Review
- The Rab Geranylgeranyl Transferase Beta Subunit Is Essential for Embryo and Seed Development inInternational journal of molecular sciences · 2021Article
- Coordination of biradial-to-radial symmetry and tissue polarity by HD-ZIP II proteins.Nature communications · 2021Article
- The Relationship between AGAMOUS and Cytokinin Signaling in the Establishment of Carpeloid Features.Plants (Basel, Switzerland) · 2021Article
- Auxin and Flower Development: A Blossoming Field.Cold Spring Harbor perspectives in biology · 2021Review
- Asynchrony of ovule primordia initiation inDevelopment (Cambridge, England) · 2020Article
- A copia-like retrotransposon insertion in the upstream region of the SHATTERPROOF1 gene, BnSHP1.A9, is associated with quantitative variation in pod shattering resistance in oilseed rape.Journal of experimental botany · 2020Article
- Control of stem cell activity in the carpel margin meristem (CMM) in Arabidopsis.Plant reproduction · 2019Review
- Tomato MYB21 Acts in Ovules to Mediate Jasmonate-Regulated Fertility.The Plant cell · 2019Article
- Evidence for the Regulation of Gynoecium Morphogenesis byPlant physiology · 2018Article
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Although it is generally accepted that auxin is important for the patterning of the female reproductive organ, the gynoecium, the flow as well as the temporal and spatial actions of auxin have been difficult to show during early gynoecial development. The primordium of the Arabidopsis (Arabidopsis thaliana) gynoecium is composed of two congenitally fused, laterally positioned carpel primordia bisected by two medially positioned meristematic regions that give rise to apical and internal tissues, including the ovules. This organization makes the gynoecium one of the most complex plant structures, and as such, the regulation of its development has remained largely elusive. By determining the spatiotemporal expression of auxin response reporters and localization of PINFORMED (PIN) auxin efflux carriers, we have been able to create a map of the auxin flow during the earliest stages of gynoecial primordium initiation and outgrowth. We show that transient disruption of polar auxin transport (PAT) results in ectopic auxin responses, broadened expression domains of medial tissue markers, and disturbed lateral preprocambium initiation. Based on these results, we propose a new model of auxin-mediated gynoecial patterning, suggesting that valve outgrowth depends on PIN1-mediated lateral auxin maxima as well as subsequent internal auxin drainage and provascular formation, whereas the growth of the medial domains is less dependent on correct PAT. In addition, PAT is required to prevent the lateral domains, at least in the apical portion of the gynoecial primordium, from obtaining medial fates.
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