<i>Taraxacum officinale</i> pollen depresses seed set of montane wildflowers through pollen allelopathy

Plant species that share pollinators can suffer from interspecific pollen deposition. Male reproductive success is inevitably reduced by the loss of pollen to flowers of another species. Female reproductive success can be affected by reduced stigmatic area or, more strongly, through allelopathic eff...

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Main Authors: Deirdre Loughnan, James D. Thomson, Jane E. Ogilvie, Benjamin Gilbert
Format: Article
Language:English
Published: Enviroquest Ltd. 2014-04-01
Series:Journal of Pollination Ecology
Online Access:https://pollinationecology.org/index.php/jpe/article/view/286
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author Deirdre Loughnan
James D. Thomson
Jane E. Ogilvie
Benjamin Gilbert
author_facet Deirdre Loughnan
James D. Thomson
Jane E. Ogilvie
Benjamin Gilbert
author_sort Deirdre Loughnan
collection DOAJ
description Plant species that share pollinators can suffer from interspecific pollen deposition. Male reproductive success is inevitably reduced by the loss of pollen to flowers of another species. Female reproductive success can be affected by reduced stigmatic area or, more strongly, through allelopathic effects by which the admixture of some foreign pollen reduces seed or fruit set. We tested for allelopathic effects of Taraxacum officinale (Asteracaeae) pollen on the seed set of montane wildflowers Erythronium grandiflorum (Liliaceae) and Erysimum capitatum (Brassicaceae), by hand-pollinating plants with pollen mixtures. Taraxacum is a common invasive species, which produces allelopathic chemicals in its root and vegetative tissue, making it a likely candidate for pollen allelopathy. Flowers of both species produced fewer well-developed seeds when pollinated with pollen mixtures containing Taraxacum pollen. The pollen-allelopathic potential of weedy dandelion may add to its ability to disrupt communities that it invades.
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spelling doaj.art-1ee9c88d90d44e6592655fe9747c25292022-12-21T18:32:28ZengEnviroquest Ltd.Journal of Pollination Ecology1920-76032014-04-011314615010.26786/1920-7603(2014)13140<i>Taraxacum officinale</i> pollen depresses seed set of montane wildflowers through pollen allelopathyDeirdre Loughnan0James D. Thomson1Jane E. Ogilvie2Benjamin Gilbert3University of TorontoUniversity of Toronto Rocky Mountain Biological LaboratoryUniversity of Toronto Rocky Mountain Biological LabUniversity of TorontoPlant species that share pollinators can suffer from interspecific pollen deposition. Male reproductive success is inevitably reduced by the loss of pollen to flowers of another species. Female reproductive success can be affected by reduced stigmatic area or, more strongly, through allelopathic effects by which the admixture of some foreign pollen reduces seed or fruit set. We tested for allelopathic effects of Taraxacum officinale (Asteracaeae) pollen on the seed set of montane wildflowers Erythronium grandiflorum (Liliaceae) and Erysimum capitatum (Brassicaceae), by hand-pollinating plants with pollen mixtures. Taraxacum is a common invasive species, which produces allelopathic chemicals in its root and vegetative tissue, making it a likely candidate for pollen allelopathy. Flowers of both species produced fewer well-developed seeds when pollinated with pollen mixtures containing Taraxacum pollen. The pollen-allelopathic potential of weedy dandelion may add to its ability to disrupt communities that it invades.https://pollinationecology.org/index.php/jpe/article/view/286
spellingShingle Deirdre Loughnan
James D. Thomson
Jane E. Ogilvie
Benjamin Gilbert
<i>Taraxacum officinale</i> pollen depresses seed set of montane wildflowers through pollen allelopathy
Journal of Pollination Ecology
title <i>Taraxacum officinale</i> pollen depresses seed set of montane wildflowers through pollen allelopathy
title_full <i>Taraxacum officinale</i> pollen depresses seed set of montane wildflowers through pollen allelopathy
title_fullStr <i>Taraxacum officinale</i> pollen depresses seed set of montane wildflowers through pollen allelopathy
title_full_unstemmed <i>Taraxacum officinale</i> pollen depresses seed set of montane wildflowers through pollen allelopathy
title_short <i>Taraxacum officinale</i> pollen depresses seed set of montane wildflowers through pollen allelopathy
title_sort i taraxacum officinale i pollen depresses seed set of montane wildflowers through pollen allelopathy
url https://pollinationecology.org/index.php/jpe/article/view/286
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