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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Detalles Bibliográficos
Autores principales:	Laporta, C., Palacios, R.A.
Formato:	SER
Materias:	Buzz-pollination Caesalpiniaceae Chamaecrista Floral biology Senna Caesalpinioideae Cassieae
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_05677572_v561_n_p179_Laporta
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_05677572_v561_n_p179_Laporta
record_format	dspace
spelling	todo:paper_05677572_v561_n_p179_Laporta2023-10-03T15:35:55Z Morphological aspects of four buzz-pollinated species of the tribe cassieae (Caesalpiniaceae) Laporta, C. Palacios, R.A. 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. SER info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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 Laporta, C. Palacios, R.A. 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.
format	SER
author	Laporta, C. Palacios, R.A.
author_facet	Laporta, C. Palacios, R.A.
author_sort	Laporta, C.
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)
url	http://hdl.handle.net/20.500.12110/paper_05677572_v561_n_p179_Laporta
work_keys_str_mv	AT laportac morphologicalaspectsoffourbuzzpollinatedspeciesofthetribecassieaecaesalpiniaceae AT palaciosra morphologicalaspectsoffourbuzzpollinatedspeciesofthetribecassieaecaesalpiniaceae
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Morphological aspects of four buzz-pollinated species of the tribe cassieae (Caesalpiniaceae)

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