Notes on the self-pollination in Dendrobium biflorum (Orchidales, Dendrobiinae)
The conditions favouring self-pollination are determined for a species of Dendrobium Sw. A survey of gynostemium micromorphology in collected flowers of Dendrobium biflorum revealed two stages of a unique form of autogamy: on germination of pollen tetrads, pollen tubes reached the stigmatic region...
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| Format: | Article |
| Language: | English |
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Polish Botanical Society
2012-08-01
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| Series: | Acta Societatis Botanicorum Poloniae |
| Subjects: | |
| Online Access: | https://pbsociety.org.pl/journals/index.php/asbp/article/view/248 |
| _version_ | 1817980217410453504 |
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| author | Agnieszka K. Kowalkowska Hanna B. Margońska |
| author_facet | Agnieszka K. Kowalkowska Hanna B. Margońska |
| author_sort | Agnieszka K. Kowalkowska |
| collection | DOAJ |
| description | The conditions favouring self-pollination are determined for a species of Dendrobium Sw. A survey of gynostemium micromorphology in collected flowers of Dendrobium biflorum revealed two stages of a unique form of autogamy: on germination of pollen tetrads, pollen tubes reached the stigmatic region without the pollen being displaced from the anther locules. This is the first time for this type of autogamy to be reported in Dendrobium biflorum. Pollen grains germinated directly from the locules, bypassing the stigma or falling or sliding down onto the stigmatic surface. The pollen tubes were long and reached the stylar canal. On The Society Islands, differences in exposure of the habitats to weather conditions and altitude gradients influence both composition and form of the vegetation, as well as the occurrence of pollinators. The form of autogamy described here may be the usual method of pollination found on The Society Islands (and even the whole of French Polynesia), where suitable pollinators are absent and/or growth conditions stressful. |
| first_indexed | 2024-04-13T22:51:41Z |
| format | Article |
| id | doaj.art-e35db830fd464c2daccdcf7729295810 |
| institution | Directory Open Access Journal |
| issn | 2083-9480 |
| language | English |
| last_indexed | 2024-04-13T22:51:41Z |
| publishDate | 2012-08-01 |
| publisher | Polish Botanical Society |
| record_format | Article |
| series | Acta Societatis Botanicorum Poloniae |
| spelling | doaj.art-e35db830fd464c2daccdcf77292958102022-12-22T02:26:11ZengPolish Botanical SocietyActa Societatis Botanicorum Poloniae2083-94802012-08-0181322322810.5586/asbp.2012.024731Notes on the self-pollination in Dendrobium biflorum (Orchidales, Dendrobiinae)Agnieszka K. Kowalkowska0Hanna B. Margońska1Department of Plant Cytology and Embryology, University of Gdańsk, Wita Stwosza 59, 80-308 GdańskDepartment of Plant Taxonomy and Nature Conservation, University of Gdańsk, Wita Stwosza 59, 80-308 GdańskThe conditions favouring self-pollination are determined for a species of Dendrobium Sw. A survey of gynostemium micromorphology in collected flowers of Dendrobium biflorum revealed two stages of a unique form of autogamy: on germination of pollen tetrads, pollen tubes reached the stigmatic region without the pollen being displaced from the anther locules. This is the first time for this type of autogamy to be reported in Dendrobium biflorum. Pollen grains germinated directly from the locules, bypassing the stigma or falling or sliding down onto the stigmatic surface. The pollen tubes were long and reached the stylar canal. On The Society Islands, differences in exposure of the habitats to weather conditions and altitude gradients influence both composition and form of the vegetation, as well as the occurrence of pollinators. The form of autogamy described here may be the usual method of pollination found on The Society Islands (and even the whole of French Polynesia), where suitable pollinators are absent and/or growth conditions stressful.https://pbsociety.org.pl/journals/index.php/asbp/article/view/248autogamyDendrobium biflorumgynostemium micromorphologyOrchidaceaeThe Society Islands |
| spellingShingle | Agnieszka K. Kowalkowska Hanna B. Margońska Notes on the self-pollination in Dendrobium biflorum (Orchidales, Dendrobiinae) Acta Societatis Botanicorum Poloniae autogamy Dendrobium biflorum gynostemium micromorphology Orchidaceae The Society Islands |
| title | Notes on the self-pollination in Dendrobium biflorum (Orchidales, Dendrobiinae) |
| title_full | Notes on the self-pollination in Dendrobium biflorum (Orchidales, Dendrobiinae) |
| title_fullStr | Notes on the self-pollination in Dendrobium biflorum (Orchidales, Dendrobiinae) |
| title_full_unstemmed | Notes on the self-pollination in Dendrobium biflorum (Orchidales, Dendrobiinae) |
| title_short | Notes on the self-pollination in Dendrobium biflorum (Orchidales, Dendrobiinae) |
| title_sort | notes on the self pollination in dendrobium biflorum orchidales dendrobiinae |
| topic | autogamy Dendrobium biflorum gynostemium micromorphology Orchidaceae The Society Islands |
| url | https://pbsociety.org.pl/journals/index.php/asbp/article/view/248 |
| work_keys_str_mv | AT agnieszkakkowalkowska notesontheselfpollinationindendrobiumbiflorumorchidalesdendrobiinae AT hannabmargonska notesontheselfpollinationindendrobiumbiflorumorchidalesdendrobiinae |