Investigation of the breeding systems of four Aizoaceae species in Namaqualand, South Africa

Carolin Mayer; Gesine Pufal

doi:10.1016/j.sajb.2007.06.001

Investigation of the breeding systems of four Aizoaceae species in Namaqualand, South Africa

Carolin Mayer
, Gesine Pufal

Research output: Journal contributions › Journal articles › Research › peer-review

8 Citations (Scopus)

Abstract

We investigated the breeding systems of four different Aizoaceae species in Namaqualand, South Africa. Results showed that all four species are xenogamous with negligible amounts of seeds produced when flowers are left to spontaneous self-pollination (autogamy) or self-pollinated. Experiments allowing single visits of pollinators resulted in significantly higher seed numbers in relation to bagged unmanipulated flowers for two species. Pollen–ovule ratios were extremely high and supported the notion that the investigated Aizoaceae species are obligate outcrossers depending on insects as pollen vectors.

Original language	English
Journal	South African Journal of Botany
Volume	73
Issue number	4
Pages (from-to)	657-660
Number of pages	4
ISSN	0254-6299
DOIs	https://doi.org/10.1016/j.sajb.2007.06.001
Publication status	Published - 01.11.2007
Externally published	Yes

Bibliographical note

Funding Information:
This study was embedded in BIOTA Southern Africa ( www.biota-africa.com ) which is sponsored by the German Federal Ministry of Education and Research (Bmbf 01LC0024). Northern Cape Nature Conservation Services kindly issued research permits. Gesine Pufal acknowledges the financial support provided by the Hans Merensky Foundation. Anonymous referees gave helpful comments to improve the manuscript.

Research areas and keywords

Ecosystems Research
Cheiridopsis
Leipoldtia
Pollen-ovule ratio
Pollination experiments
Ruschia

ASJC Scopus Subject Areas

Plant Science

Access to Document

10.1016/j.sajb.2007.06.001Licence: CC BY

Cite this

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title = "Investigation of the breeding systems of four Aizoaceae species in Namaqualand, South Africa",

abstract = "We investigated the breeding systems of four different Aizoaceae species in Namaqualand, South Africa. Results showed that all four species are xenogamous with negligible amounts of seeds produced when flowers are left to spontaneous self-pollination (autogamy) or self-pollinated. Experiments allowing single visits of pollinators resulted in significantly higher seed numbers in relation to bagged unmanipulated flowers for two species. Pollen–ovule ratios were extremely high and supported the notion that the investigated Aizoaceae species are obligate outcrossers depending on insects as pollen vectors.",

keywords = "Ecosystems Research, Cheiridopsis, Leipoldtia, Pollen-ovule ratio, Pollination experiments, Ruschia",

author = "Carolin Mayer and Gesine Pufal",

note = "Funding Information: This study was embedded in BIOTA Southern Africa ( www.biota-africa.com ) which is sponsored by the German Federal Ministry of Education and Research (Bmbf 01LC0024). Northern Cape Nature Conservation Services kindly issued research permits. Gesine Pufal acknowledges the financial support provided by the Hans Merensky Foundation. Anonymous referees gave helpful comments to improve the manuscript.",

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doi = "10.1016/j.sajb.2007.06.001",

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AU - Pufal, Gesine

N1 - Funding Information: This study was embedded in BIOTA Southern Africa ( www.biota-africa.com ) which is sponsored by the German Federal Ministry of Education and Research (Bmbf 01LC0024). Northern Cape Nature Conservation Services kindly issued research permits. Gesine Pufal acknowledges the financial support provided by the Hans Merensky Foundation. Anonymous referees gave helpful comments to improve the manuscript.

PY - 2007/11/1

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N2 - We investigated the breeding systems of four different Aizoaceae species in Namaqualand, South Africa. Results showed that all four species are xenogamous with negligible amounts of seeds produced when flowers are left to spontaneous self-pollination (autogamy) or self-pollinated. Experiments allowing single visits of pollinators resulted in significantly higher seed numbers in relation to bagged unmanipulated flowers for two species. Pollen–ovule ratios were extremely high and supported the notion that the investigated Aizoaceae species are obligate outcrossers depending on insects as pollen vectors.

AB - We investigated the breeding systems of four different Aizoaceae species in Namaqualand, South Africa. Results showed that all four species are xenogamous with negligible amounts of seeds produced when flowers are left to spontaneous self-pollination (autogamy) or self-pollinated. Experiments allowing single visits of pollinators resulted in significantly higher seed numbers in relation to bagged unmanipulated flowers for two species. Pollen–ovule ratios were extremely high and supported the notion that the investigated Aizoaceae species are obligate outcrossers depending on insects as pollen vectors.

KW - Ecosystems Research

KW - Cheiridopsis

KW - Leipoldtia

KW - Pollen-ovule ratio

KW - Pollination experiments

KW - Ruschia

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DO - 10.1016/j.sajb.2007.06.001

M3 - Journal articles

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EP - 660

JO - South African Journal of Botany

JF - South African Journal of Botany

IS - 4

ER -

Investigation of the breeding systems of four Aizoaceae species in Namaqualand, South Africa

Abstract

Bibliographical note

Research areas and keywords

ASJC Scopus Subject Areas

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