Pollination ecology of Impatiens uliginosa (Balsaminaceae) endemic to China
China is one of the five major distribution regions of Impatiens in the world, with more than 270 species distributed all over the country, especially in limestone areas such as Yunnan, Guizhou and Guangxi. In order to explore pollination ecology of Impatiens uliginosa, we conducted the following ex...
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National Taiwan University
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doaj-937e6a404ecf4d80bf295f764cffacec2021-09-03T05:45:25ZengNational Taiwan UniversityTaiwania0372-333X2021-07-0166329830610.6165/tai.2021.66.298Pollination ecology of Impatiens uliginosa (Balsaminaceae) endemic to ChinaBai-Zhu Li0Zhao-Feng Li1Meng-Da Xiang2De-Mei Hu3Yu Li4Yin Yi5Xiao-Xin Tang6Key Laboratory of National Forestry and Grassland Administration on Biodiversity Conservation in Karst Mountainous Areas of Southwestern China, School of Life Science, Guizhou Normal University, Guiyang 550025, ChinaKey Laboratory of National Forestry and Grassland Administration on Biodiversity Conservation in Karst Mountainous Areas of Southwestern China, School of Life Science, Guizhou Normal University, Guiyang 550025, ChinaKey Laboratory of National Forestry and Grassland Administration on Biodiversity Conservation in Karst Mountainous Areas of Southwestern China, School of Life Science, Guizhou Normal University, Guiyang 550025, ChinaKey Laboratory of National Forestry and Grassland Administration on Biodiversity Conservation in Karst Mountainous Areas of Southwestern China, School of Life Science, Guizhou Normal University, Guiyang 550025, ChinaKey Laboratory of National Forestry and Grassland Administration on Biodiversity Conservation in Karst Mountainous Areas of Southwestern China, School of Life Science, Guizhou Normal University, Guiyang 550025, ChinaKey Laboratory of National Forestry and Grassland Administration on Biodiversity Conservation in Karst Mountainous Areas of Southwestern China, School of Life Science, Guizhou Normal University, Guiyang 550025, ChinaKey Laboratory of National Forestry and Grassland Administration on Biodiversity Conservation in Karst Mountainous Areas of Southwestern China, School of Life Science, Guizhou Normal University, Guiyang 550025, ChinaChina is one of the five major distribution regions of Impatiens in the world, with more than 270 species distributed all over the country, especially in limestone areas such as Yunnan, Guizhou and Guangxi. In order to explore pollination ecology of Impatiens uliginosa, we conducted the following experiments: observing the floral traits and floral phenology, measuring the nectar volume and sugar concentration, counting pollen viability, deposition and removal, carrying out pollination treatments and recording floral visitors and their behavior. Results show that the average life span of a single flower is 3.23±0.68 d. The male and female phase lasted for 1.70±0.06 d and 1.53±0.63 d. The amount of nectar per flower is 6.97±0.47 ul and sugar concentration of nectar is 36.58±0.82%, respectively. Stigma is receptive on the first day of anthesis. Pollen viability is strongest on the second day of anthesis. The pollen-ovule ratio (P/O) is 3974.28±105.07. We investigated the contributions of different floral visitors. Bombus sp., Apis dorsata, Lobocla proxima, Ant sp. and Ephydra sp. are diurnal visitors. However, Bombus sp. is the most effective pollinator of I. uliginosa. Pollination treatments indicated that I. uliginosa is self-compatible but completely relies on pollinators for pollination. There is no restriction on pollination in the field and I. uliginosa can avoid inbreeding depression. This study is of great significance to enrich the biological data of pollination and protect the biodiversity of Impatiens.https://taiwania.ntu.edu.tw/abstract.php?type=abstract&id=1762breeding systemimpatiens uliginosapollination biologypollination treatments |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Bai-Zhu Li Zhao-Feng Li Meng-Da Xiang De-Mei Hu Yu Li Yin Yi Xiao-Xin Tang |
spellingShingle |
Bai-Zhu Li Zhao-Feng Li Meng-Da Xiang De-Mei Hu Yu Li Yin Yi Xiao-Xin Tang Pollination ecology of Impatiens uliginosa (Balsaminaceae) endemic to China Taiwania breeding system impatiens uliginosa pollination biology pollination treatments |
author_facet |
Bai-Zhu Li Zhao-Feng Li Meng-Da Xiang De-Mei Hu Yu Li Yin Yi Xiao-Xin Tang |
author_sort |
Bai-Zhu Li |
title |
Pollination ecology of Impatiens uliginosa (Balsaminaceae) endemic to China |
title_short |
Pollination ecology of Impatiens uliginosa (Balsaminaceae) endemic to China |
title_full |
Pollination ecology of Impatiens uliginosa (Balsaminaceae) endemic to China |
title_fullStr |
Pollination ecology of Impatiens uliginosa (Balsaminaceae) endemic to China |
title_full_unstemmed |
Pollination ecology of Impatiens uliginosa (Balsaminaceae) endemic to China |
title_sort |
pollination ecology of impatiens uliginosa (balsaminaceae) endemic to china |
publisher |
National Taiwan University |
series |
Taiwania |
issn |
0372-333X |
publishDate |
2021-07-01 |
description |
China is one of the five major distribution regions of Impatiens in the world, with more than 270 species distributed all over the country, especially in limestone areas such as Yunnan, Guizhou and Guangxi. In order to explore pollination ecology of Impatiens uliginosa, we conducted the following experiments: observing the floral traits and floral phenology, measuring the nectar volume and sugar concentration, counting pollen viability, deposition and removal, carrying out pollination treatments and recording floral visitors and their behavior. Results show that the average life span of a single flower is 3.23±0.68 d. The male and female phase lasted for 1.70±0.06 d and 1.53±0.63 d. The amount of nectar per flower is 6.97±0.47 ul and sugar concentration of nectar is 36.58±0.82%, respectively. Stigma is receptive on the first day of anthesis. Pollen viability is strongest on the second day of anthesis. The pollen-ovule ratio (P/O) is 3974.28±105.07. We investigated the contributions of different floral visitors. Bombus sp., Apis dorsata, Lobocla proxima, Ant sp. and Ephydra sp. are diurnal visitors. However, Bombus sp. is the most effective pollinator of I. uliginosa. Pollination treatments indicated that I. uliginosa is self-compatible but completely relies on pollinators for pollination. There is no restriction on pollination in the field and I. uliginosa can avoid inbreeding depression. This study is of great significance to enrich the biological data of pollination and protect the biodiversity of Impatiens. |
topic |
breeding system impatiens uliginosa pollination biology pollination treatments |
url |
https://taiwania.ntu.edu.tw/abstract.php?type=abstract&id=1762 |
work_keys_str_mv |
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