ArticleAnnals of botany2011
Unique stigmatic hairs and pollen-tube growth within the stigmatic cell wall in the early-divergent angiosperm family Hydatellaceae.
Article in Annals of botany, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
12 citing papers in PubMed, 36 citations in OpenAlex.
- Geometric and mechanical guidance: Role of stigmatic epidermis in early pollen tube pathfinding in arabidopsis.PLoS computational biology · 2025Article
- Stigmatic exudate in the Annonaceae: Pollinator reward, pollen germination medium or extragynoecial compitum?Journal of integrative plant biology · 2017Article
- Style morphology and pollen tube pathway.Plant reproduction · 2017Review
- The Diversity of the Pollen Tube Pathway in Plants: Toward an Increasing Control by the Sporophyte.Frontiers in plant science · 2016Review
- Article
- Differential expression patterns of arabinogalactan proteins in Arabidopsis thaliana reproductive tissues.Journal of experimental botany · 2014Article
- Immunolocalization of arabinogalactan proteins (AGPs) in reproductive structures of an early-divergent angiosperm, Trithuria (Hydatellaceae).Annals of botany · 2013Article
- Arabinogalactan-protein secretion is associated with the acquisition of stigmatic receptivity in the apple flower.Annals of botany · 2012Article
- Pollen tube development in two species of Trithuria (Hydatellaceae) with contrasting breeding systems.Sexual plant reproduction · 2012Article
- Pollen-pistil interactions and early fruiting in parthenocarpic citrus.Annals of botany · 2011Article
- Sexual plant reproduction.Annals of botany · 2011Article
- Cabomba as a model for studies of early angiosperm evolution.Annals of botany · 2011Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 4 institutions in 4 countries.
Funding
Abstract
BACKGROUND AND
aimsThe ultrastructure of the pollen tubes and the unusual multicellular stigmatic hairs of Trithuria, the sole genus of Hydatellaceae, are described in the context of comparative studies of stigmatic and transmitting tissue in other early-divergent angiosperms.
methodsScanning and transmission electron microscopy and immunocytochemistry are used to study the structure and composition of both mature and immature stigmatic hair cells and pollen-tube growth in Trithuria. KEY
resultsTrithuria possesses a dry-type stigma. Pollen tubes grow within the cell walls of the long multicellular stigmatic hairs. Immunocytochemistry results suggest that arabinogalactan proteins are involved in attracting the pollen tubes through the stigmatic cuticle. Most tubes grow along the hair axis towards its base, but some grow towards the hair apex, suggesting that pollen tubes are guided by both physical constraints such as microfibril orientation and the presence of binding factors such as unesterified pectins and adhesive proteins.
conclusionsThe presence of a dry-type stigma in Trithuria supports the hypothesis that this condition is ancestral in angiosperms. Each multicellular stigmatic hair of Hydatellaceae is morphologically homologous with a stigmatic papilla of other angiosperms, but functions as an independent stigma and style. This unusual combination of factors makes Hydatellaceae a useful model for comparative studies of pollen-tube growth in early angiosperms.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.