ArticlePloS one2017
Understanding the unique flowering sequence in Dipsacus fullonum: Evidence from geometrical changes during head development.
Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Understanding of Flower Initiation Pattern and Developmental Stages of Epiphyte orchidTropical life sciences research · 2026Article
- Are capitula inflorescences? A reassessment based on flower-like meristem identity and ray flower development.Annals of botany · 2026Article
- Pseudanthia in angiosperms: a review.Annals of botany · 2023Review
- Flower-like meristem conditions and spatial constraints shape architecture of floral pseudanthia in Apioideae.EvoDevo · 2022Article
- The 'Male Flower' ofFrontiers in cell and developmental biology · 2020Article
- Flower-like heads from flower-like meristems: pseudanthium development in Davidia involucrata (Nyssaceae).Journal of plant research · 2018Article
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Corrections and comments
- Erratum issued
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2 authors.
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Abstract
The genus Dipsacus is characterized by a remarkable bidirectional flowering sequence and a rare phyllotactic pattern. Considering that flower initiation and flowering sequence may be interconnected, we document the development of the head meristem in Dipsacus fullonum. Our results indicate a gradual change in the geometry of the head meristem beginning with a dome shaped stage, continuing with a remarkable widening in the middle part of the head meristem and ending in a spindle-like form. Quantitative data confirm that meristem expansion is higher in the middle part than at the base of the meristem. Likewise, the size of the flower primordia in the middle part of the young head is significantly larger than at the base soon after initiation. We conclude that the change in the geometry of the meristem and the availability of newly generated space result in the promotion of the middle flowers and the bidirectional flowering sequence at anthesis. Our investigation on phyllotactic patterns reveals a high tendency (30%) of the head meristem to insert or lose parastichies. This finding can also be attributed to changes in the expansion rate of the meristem. Dependent on the spatio-temporal relation between meristem expansion and primordia initiation, either flower primordia are promoted or additional parastichies appear. Our results emphasize the important role of geometry in flower development and phyllotactic pattern formation.
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