Pollination in the Antarctic flowering plant Colobanthus quitensis (Kunth) Bartl.
Colobanthus quitensis forms chasmogamic and cleistogamic flowers. Their structure signals the possibility of both cross-pollination and self-pollination. In favorable conditions (natural or laboratory), flowers open creating a possibility for cross-pollination. The occurrence of cleistogamy in the i...
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doaj-196fec4420b5440b88cc7965746508fb2020-11-25T03:55:45ZengPolish Botanical SocietyActa Agrobotanica2300-357X2012-12-0159112313110.5586/aa.2006.0121407Pollination in the Antarctic flowering plant Colobanthus quitensis (Kunth) Bartl.Irena Giełwanowska0Ewa Szczuka1Anna Bochenek2University of Warmia and Mazury in OlsztynUniversity of Warmia and Mazury in Olsztyn; Polish Academy of SciencesUniversity of Warmia and Mazury in OlsztynColobanthus quitensis forms chasmogamic and cleistogamic flowers. Their structure signals the possibility of both cross-pollination and self-pollination. In favorable conditions (natural or laboratory), flowers open creating a possibility for cross-pollination. The occurrence of cleistogamy in the investigated species may be conditioned by abiotic factors: low temperature, high air humidity, and strong wind. In closed flowers, a part of pollen grains reaches the stigma surface, and the rest remains inside the microsporangium. Pollen grains germinate on the stigma surface or inside the microsporangium. Often, two or more pollen tubes grow from a single pollen grain. Closed flowers and the direct contact between the style stigma and anther prove the preference for autogamy. Autogamy ensures the reproductive success of the investigated plant in the exceptionally harsh Antarctic environment.https://pbsociety.org.pl/journals/index.php/aa/article/view/1795Colobanthus quitensismikrosporogenezaziarna pyłkuzapyleniekleistogamiaAntarktyka |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Irena Giełwanowska Ewa Szczuka Anna Bochenek |
spellingShingle |
Irena Giełwanowska Ewa Szczuka Anna Bochenek Pollination in the Antarctic flowering plant Colobanthus quitensis (Kunth) Bartl. Acta Agrobotanica Colobanthus quitensis mikrosporogeneza ziarna pyłku zapylenie kleistogamia Antarktyka |
author_facet |
Irena Giełwanowska Ewa Szczuka Anna Bochenek |
author_sort |
Irena Giełwanowska |
title |
Pollination in the Antarctic flowering plant Colobanthus quitensis (Kunth) Bartl. |
title_short |
Pollination in the Antarctic flowering plant Colobanthus quitensis (Kunth) Bartl. |
title_full |
Pollination in the Antarctic flowering plant Colobanthus quitensis (Kunth) Bartl. |
title_fullStr |
Pollination in the Antarctic flowering plant Colobanthus quitensis (Kunth) Bartl. |
title_full_unstemmed |
Pollination in the Antarctic flowering plant Colobanthus quitensis (Kunth) Bartl. |
title_sort |
pollination in the antarctic flowering plant colobanthus quitensis (kunth) bartl. |
publisher |
Polish Botanical Society |
series |
Acta Agrobotanica |
issn |
2300-357X |
publishDate |
2012-12-01 |
description |
Colobanthus quitensis forms chasmogamic and cleistogamic flowers. Their structure signals the possibility of both cross-pollination and self-pollination. In favorable conditions (natural or laboratory), flowers open creating a possibility for cross-pollination. The occurrence of cleistogamy in the investigated species may be conditioned by abiotic factors: low temperature, high air humidity, and strong wind. In closed flowers, a part of pollen grains reaches the stigma surface, and the rest remains inside the microsporangium. Pollen grains germinate on the stigma surface or inside the microsporangium. Often, two or more pollen tubes grow from a single pollen grain. Closed flowers and the direct contact between the style stigma and anther prove the preference for autogamy. Autogamy ensures the reproductive success of the investigated plant in the exceptionally harsh Antarctic environment. |
topic |
Colobanthus quitensis mikrosporogeneza ziarna pyłku zapylenie kleistogamia Antarktyka |
url |
https://pbsociety.org.pl/journals/index.php/aa/article/view/1795 |
work_keys_str_mv |
AT irenagiełwanowska pollinationintheantarcticfloweringplantcolobanthusquitensiskunthbartl AT ewaszczuka pollinationintheantarcticfloweringplantcolobanthusquitensiskunthbartl AT annabochenek pollinationintheantarcticfloweringplantcolobanthusquitensiskunthbartl |
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1724468328630583296 |