Morphological aspects of four buzz-pollinated species of the tribe cassieae (Caesalpiniaceae)
The morphology, phases, rewards, attractants, visitors, pollen and P/O ratio of four buzz-pollinated species of the tribe Cassieae were analysed in order to establish their floral biology and to test the presence of morphological androecium's differentiation. We wanted to know if the morphologi...
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2001
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05677572_v561_n_p179_Laporta http://hdl.handle.net/20.500.12110/paper_05677572_v561_n_p179_Laporta |
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paper:paper_05677572_v561_n_p179_Laporta2023-06-08T15:42:37Z Morphological aspects of four buzz-pollinated species of the tribe cassieae (Caesalpiniaceae) Buzz-pollination Caesalpiniaceae Chamaecrista Floral biology Senna Caesalpinioideae Cassieae Chamaecrista Senna The morphology, phases, rewards, attractants, visitors, pollen and P/O ratio of four buzz-pollinated species of the tribe Cassieae were analysed in order to establish their floral biology and to test the presence of morphological androecium's differentiation. We wanted to know if the morphological differences, when observed, reflected functional differences between the groups of stamens. Results allowed us to establish that both genera share a group of characteristics that place them in the buzz-pollination syndrome. The pollinators are bumblebees able to vibrate the stamens leading to nothotribic or sternotribic deposition of pollen. The morphological androecium's differences are more evident in Senna than in Chamaecrista, as well as the reflected functional differences: the medium stamens play a nutritional role while the longest play a reproductive one. The P/O ratio was extremely high for all the species treated and pollen production was also high. It may be related to the visitor's behaviour and would act as a reproductive strategy to assure an effective pollen deposition. 2001 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05677572_v561_n_p179_Laporta http://hdl.handle.net/20.500.12110/paper_05677572_v561_n_p179_Laporta |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Buzz-pollination Caesalpiniaceae Chamaecrista Floral biology Senna Caesalpinioideae Cassieae Chamaecrista Senna |
| spellingShingle |
Buzz-pollination Caesalpiniaceae Chamaecrista Floral biology Senna Caesalpinioideae Cassieae Chamaecrista Senna Morphological aspects of four buzz-pollinated species of the tribe cassieae (Caesalpiniaceae) |
| topic_facet |
Buzz-pollination Caesalpiniaceae Chamaecrista Floral biology Senna Caesalpinioideae Cassieae Chamaecrista Senna |
| description |
The morphology, phases, rewards, attractants, visitors, pollen and P/O ratio of four buzz-pollinated species of the tribe Cassieae were analysed in order to establish their floral biology and to test the presence of morphological androecium's differentiation. We wanted to know if the morphological differences, when observed, reflected functional differences between the groups of stamens. Results allowed us to establish that both genera share a group of characteristics that place them in the buzz-pollination syndrome. The pollinators are bumblebees able to vibrate the stamens leading to nothotribic or sternotribic deposition of pollen. The morphological androecium's differences are more evident in Senna than in Chamaecrista, as well as the reflected functional differences: the medium stamens play a nutritional role while the longest play a reproductive one. The P/O ratio was extremely high for all the species treated and pollen production was also high. It may be related to the visitor's behaviour and would act as a reproductive strategy to assure an effective pollen deposition. |
| title |
Morphological aspects of four buzz-pollinated species of the tribe cassieae (Caesalpiniaceae) |
| title_short |
Morphological aspects of four buzz-pollinated species of the tribe cassieae (Caesalpiniaceae) |
| title_full |
Morphological aspects of four buzz-pollinated species of the tribe cassieae (Caesalpiniaceae) |
| title_fullStr |
Morphological aspects of four buzz-pollinated species of the tribe cassieae (Caesalpiniaceae) |
| title_full_unstemmed |
Morphological aspects of four buzz-pollinated species of the tribe cassieae (Caesalpiniaceae) |
| title_sort |
morphological aspects of four buzz-pollinated species of the tribe cassieae (caesalpiniaceae) |
| publishDate |
2001 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05677572_v561_n_p179_Laporta http://hdl.handle.net/20.500.12110/paper_05677572_v561_n_p179_Laporta |
| _version_ |
1768546072693571584 |