Explosive pollination mechanism in Periandra mediterranea (Vell.) Taub. (Fabaceae) in the Guaribas Biological Reserve, Paraíba, Brazil

Detalhes bibliográficos
Autor(a) principal: Meireles, Andressa Cavalcante
Data de Publicação: 2015
Outros Autores: Queiroz, Joel Araújo, Quirino, Zelma Glebya Maciel
Tipo de documento: Artigo
Idioma: por
Título da fonte: Biotemas (Online)
Texto Completo: https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2015v28n4p71
Resumo: Periandra mediterranea (Vell.) Taub. has papilionaceous flowers with a complex pollination mechanism. This study examined pollination and reproduction in P. mediterranea from November 2009 to October 2011 at the Guaribas Biological Reserve, Paraíba, Brazil. The petals are modified in a keel that protects the stamens and stigma; two wings surround the keel, and a standard that serves as landing platform for floral visitors. Periandra mediterranea exhibits an explosive type pollination mechanism in which the bee species Xylocopa frontalis, Acanthopus excellens and Epicharis sp., land on the standard and, due to body weight, expose the reproductive organs in the wing-keel complex. As a result, the reproductive organs of the flower come into contact with the dorsal region of the bee body, depositing pollen (i.e., nototríbic pollination). Reproductive assays showed 20% fruiting in spontaneous auto-pollination, 33% in manual auto-pollination, 33% in manual cross-pollination, and 100% in the control group, with no reproductive success while in apomixis. These results demonstrate self-compatibility in this species, however it depends on pollinators to ensure reproductive success.
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spelling Explosive pollination mechanism in Periandra mediterranea (Vell.) Taub. (Fabaceae) in the Guaribas Biological Reserve, Paraíba, BrazilMecanismo explosivo de polinização em Periandra mediterranea (Vell.) Taub. (Fabaceae) na Reserva Biológica Guaribas, Paraíba, BrasilPeriandra mediterranea (Vell.) Taub. has papilionaceous flowers with a complex pollination mechanism. This study examined pollination and reproduction in P. mediterranea from November 2009 to October 2011 at the Guaribas Biological Reserve, Paraíba, Brazil. The petals are modified in a keel that protects the stamens and stigma; two wings surround the keel, and a standard that serves as landing platform for floral visitors. Periandra mediterranea exhibits an explosive type pollination mechanism in which the bee species Xylocopa frontalis, Acanthopus excellens and Epicharis sp., land on the standard and, due to body weight, expose the reproductive organs in the wing-keel complex. As a result, the reproductive organs of the flower come into contact with the dorsal region of the bee body, depositing pollen (i.e., nototríbic pollination). Reproductive assays showed 20% fruiting in spontaneous auto-pollination, 33% in manual auto-pollination, 33% in manual cross-pollination, and 100% in the control group, with no reproductive success while in apomixis. These results demonstrate self-compatibility in this species, however it depends on pollinators to ensure reproductive success.A espécie Periandra mediterranea (Vell.) Taub. apresenta flores papilionáceas e bilabiadas o que proporciona um complexo mecanismo de polinização. A polinização e a reprodução de P. mediterranea foram estudadas no período de novembro/2009 a outubro/2011 na Reserva Biológica Guaribas, Paraíba, Brasil. As pétalas são modificadas em uma quilha, que protege os estames e o estigma; duas alas, que envolvem a quilha, e um estandarte, que serve de plataforma de pouso para o visitante floral. O mecanismo de polinização é o explosivo, no qual as abelhas Xylocopa frontalis, Acanthopus excellens e Epicharis sp. apresentavam o comportamento de pousar no estandarte e, auxiliadas pelo seu peso, eram capazes de expor os órgãos reprodutivos que se encontram inclusos no complexo alas-quilha. Como consequência, os órgãos reprodutivos da flor contatavam a região dorsal do corpo da abelha, onde o pólen ficava depositado, caracterizando a polinização nototríbica. Testes reprodutivos demonstraram frutificação de 20% em autopolinização espontânea, 33% em autopolinização manual, 33% em polinização cruzada manual e 100% no grupo controle, enquanto que em apomixia não houve sucesso reprodutivo. Os resultados demonstraram que a espécie é autocompatível, mas depende de polinizadores para garantir o seu sucesso reprodutivo. Universidade Federal de Santa Catarina2015-09-21info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2015v28n4p7110.5007/2175-7925.2015v28n4p71Biotemas; v. 28 n. 4 (2015); 71-812175-79250103-1643reponame:Biotemas (Online)instname:Universidade Federal de Santa Catarina (UFSC)instacron:UFSCporhttps://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2015v28n4p71/31316Copyright (c) 2015 Andressa Cavalcante Meireles, Joel Araújo Queiroz, Zelma Glebya Maciel Quirinoinfo:eu-repo/semantics/openAccessMeireles, Andressa CavalcanteQueiroz, Joel AraújoQuirino, Zelma Glebya Maciel2017-10-19T15:58:18Zoai:periodicos.ufsc.br:article/37505Revistahttp://www.biotemas.ufsc.br/index.htmPUBhttps://periodicos.ufsc.br/index.php/biotemas/oai||carlospinto@ccb.ufsc.br2175-79250103-1643opendoar:2017-10-19T15:58:18Biotemas (Online) - Universidade Federal de Santa Catarina (UFSC)false
dc.title.none.fl_str_mv Explosive pollination mechanism in Periandra mediterranea (Vell.) Taub. (Fabaceae) in the Guaribas Biological Reserve, Paraíba, Brazil
Mecanismo explosivo de polinização em Periandra mediterranea (Vell.) Taub. (Fabaceae) na Reserva Biológica Guaribas, Paraíba, Brasil
title Explosive pollination mechanism in Periandra mediterranea (Vell.) Taub. (Fabaceae) in the Guaribas Biological Reserve, Paraíba, Brazil
spellingShingle Explosive pollination mechanism in Periandra mediterranea (Vell.) Taub. (Fabaceae) in the Guaribas Biological Reserve, Paraíba, Brazil
Meireles, Andressa Cavalcante
title_short Explosive pollination mechanism in Periandra mediterranea (Vell.) Taub. (Fabaceae) in the Guaribas Biological Reserve, Paraíba, Brazil
title_full Explosive pollination mechanism in Periandra mediterranea (Vell.) Taub. (Fabaceae) in the Guaribas Biological Reserve, Paraíba, Brazil
title_fullStr Explosive pollination mechanism in Periandra mediterranea (Vell.) Taub. (Fabaceae) in the Guaribas Biological Reserve, Paraíba, Brazil
title_full_unstemmed Explosive pollination mechanism in Periandra mediterranea (Vell.) Taub. (Fabaceae) in the Guaribas Biological Reserve, Paraíba, Brazil
title_sort Explosive pollination mechanism in Periandra mediterranea (Vell.) Taub. (Fabaceae) in the Guaribas Biological Reserve, Paraíba, Brazil
author Meireles, Andressa Cavalcante
author_facet Meireles, Andressa Cavalcante
Queiroz, Joel Araújo
Quirino, Zelma Glebya Maciel
author_role author
author2 Queiroz, Joel Araújo
Quirino, Zelma Glebya Maciel
author2_role author
author
dc.contributor.author.fl_str_mv Meireles, Andressa Cavalcante
Queiroz, Joel Araújo
Quirino, Zelma Glebya Maciel
description Periandra mediterranea (Vell.) Taub. has papilionaceous flowers with a complex pollination mechanism. This study examined pollination and reproduction in P. mediterranea from November 2009 to October 2011 at the Guaribas Biological Reserve, Paraíba, Brazil. The petals are modified in a keel that protects the stamens and stigma; two wings surround the keel, and a standard that serves as landing platform for floral visitors. Periandra mediterranea exhibits an explosive type pollination mechanism in which the bee species Xylocopa frontalis, Acanthopus excellens and Epicharis sp., land on the standard and, due to body weight, expose the reproductive organs in the wing-keel complex. As a result, the reproductive organs of the flower come into contact with the dorsal region of the bee body, depositing pollen (i.e., nototríbic pollination). Reproductive assays showed 20% fruiting in spontaneous auto-pollination, 33% in manual auto-pollination, 33% in manual cross-pollination, and 100% in the control group, with no reproductive success while in apomixis. These results demonstrate self-compatibility in this species, however it depends on pollinators to ensure reproductive success.
publishDate 2015
dc.date.none.fl_str_mv 2015-09-21
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2015v28n4p71
10.5007/2175-7925.2015v28n4p71
url https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2015v28n4p71
identifier_str_mv 10.5007/2175-7925.2015v28n4p71
dc.language.iso.fl_str_mv por
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dc.relation.none.fl_str_mv https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2015v28n4p71/31316
dc.rights.driver.fl_str_mv Copyright (c) 2015 Andressa Cavalcante Meireles, Joel Araújo Queiroz, Zelma Glebya Maciel Quirino
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2015 Andressa Cavalcante Meireles, Joel Araújo Queiroz, Zelma Glebya Maciel Quirino
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Santa Catarina
publisher.none.fl_str_mv Universidade Federal de Santa Catarina
dc.source.none.fl_str_mv Biotemas; v. 28 n. 4 (2015); 71-81
2175-7925
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institution UFSC
reponame_str Biotemas (Online)
collection Biotemas (Online)
repository.name.fl_str_mv Biotemas (Online) - Universidade Federal de Santa Catarina (UFSC)
repository.mail.fl_str_mv ||carlospinto@ccb.ufsc.br
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