Floral biology, nectar secretion pattern and fruit set of a threatened Bignoniaceae tree from Brazilian tropical forest

Detalhes bibliográficos
Autor(a) principal: Souza, Camila Vaz [UNESP]
Data de Publicação: 2017
Outros Autores: Nepi, Massimo, Machado, Silvia Rodrigues [UNESP], Guimarães, Elza [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.flora.2016.12.007
http://hdl.handle.net/11449/178558
Resumo: Zeyheria tuberculosa, a Bignoniaceae tree that occurs in a broad latitudinal range in Brazilian forests, is a threatened species of seasonal tropical forest. It is crucial to enhance the knowledge on this species’ floral biology, since interactions related to reproduction of plants are critical for the long term maintenance of their populations. Thus, we investigated the sexual reproduction and floral biology of Z. tuberculosa, including nectar features, aiming to understand the ecological processes associated to this mutualistic plant-animal interaction in the current modified landscape. For this, we performed experiments under natural conditions and in the laboratory. All the evaluated plants were self-incompatible. Zeyheria tuberculosa was pollinated by Bombus pauloensis, a medium-sized bee, and offered hexose-rich nectar as resource. Flowers were also visited by small-sized bee species, Trigona spinipes, that acted as pollen thief, and Pseudoaugochlora pandora and P. graminae that acted as nectar thieves. These three bee groups exhibited temporal separation in the peak of visits throughout the day. The peak of pollinator visits occurred firstly, which may allow the pollinator to access nectar and pollen loads before they are exploited by thieves. However, bee pollinator visits were scarce, and this fact, associated to the self-incompatibility of Z. tuberculosa, may explain the low fruit set registered in the studied plants. It could be of special concern for this threatened species maintenance in the medium and long term, which depends on the offspring originated by sexual reproduction.
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spelling Floral biology, nectar secretion pattern and fruit set of a threatened Bignoniaceae tree from Brazilian tropical forestFruit setMelittophilyNectar secretion patternNectar sugar compositionZeyheria tuberculosaZeyheria tuberculosa, a Bignoniaceae tree that occurs in a broad latitudinal range in Brazilian forests, is a threatened species of seasonal tropical forest. It is crucial to enhance the knowledge on this species’ floral biology, since interactions related to reproduction of plants are critical for the long term maintenance of their populations. Thus, we investigated the sexual reproduction and floral biology of Z. tuberculosa, including nectar features, aiming to understand the ecological processes associated to this mutualistic plant-animal interaction in the current modified landscape. For this, we performed experiments under natural conditions and in the laboratory. All the evaluated plants were self-incompatible. Zeyheria tuberculosa was pollinated by Bombus pauloensis, a medium-sized bee, and offered hexose-rich nectar as resource. Flowers were also visited by small-sized bee species, Trigona spinipes, that acted as pollen thief, and Pseudoaugochlora pandora and P. graminae that acted as nectar thieves. These three bee groups exhibited temporal separation in the peak of visits throughout the day. The peak of pollinator visits occurred firstly, which may allow the pollinator to access nectar and pollen loads before they are exploited by thieves. However, bee pollinator visits were scarce, and this fact, associated to the self-incompatibility of Z. tuberculosa, may explain the low fruit set registered in the studied plants. It could be of special concern for this threatened species maintenance in the medium and long term, which depends on the offspring originated by sexual reproduction.Graduation Program in Biological Sciences (Botany) São Paulo State University (Unesp) Institute of Biosciences, Caixa Postal 510Department of Life Sciences University of Siena, Via P. A. Mattioli 4Department of Botany São Paulo State University (Unesp) Institute of Biosciences, Caixa Postal 510Graduation Program in Biological Sciences (Botany) São Paulo State University (Unesp) Institute of Biosciences, Caixa Postal 510Department of Botany São Paulo State University (Unesp) Institute of Biosciences, Caixa Postal 510Universidade Estadual Paulista (Unesp)University of SienaSouza, Camila Vaz [UNESP]Nepi, MassimoMachado, Silvia Rodrigues [UNESP]Guimarães, Elza [UNESP]2018-12-11T17:30:54Z2018-12-11T17:30:54Z2017-02-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article46-55application/pdfhttp://dx.doi.org/10.1016/j.flora.2016.12.007Flora: Morphology, Distribution, Functional Ecology of Plants, v. 227, p. 46-55.0367-2530http://hdl.handle.net/11449/17855810.1016/j.flora.2016.12.0072-s2.0-850086004812-s2.0-85008600481.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengFlora: Morphology, Distribution, Functional Ecology of Plants0,570info:eu-repo/semantics/openAccess2023-10-01T06:01:22Zoai:repositorio.unesp.br:11449/178558Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T13:38:08.830364Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Floral biology, nectar secretion pattern and fruit set of a threatened Bignoniaceae tree from Brazilian tropical forest
title Floral biology, nectar secretion pattern and fruit set of a threatened Bignoniaceae tree from Brazilian tropical forest
spellingShingle Floral biology, nectar secretion pattern and fruit set of a threatened Bignoniaceae tree from Brazilian tropical forest
Souza, Camila Vaz [UNESP]
Fruit set
Melittophily
Nectar secretion pattern
Nectar sugar composition
Zeyheria tuberculosa
title_short Floral biology, nectar secretion pattern and fruit set of a threatened Bignoniaceae tree from Brazilian tropical forest
title_full Floral biology, nectar secretion pattern and fruit set of a threatened Bignoniaceae tree from Brazilian tropical forest
title_fullStr Floral biology, nectar secretion pattern and fruit set of a threatened Bignoniaceae tree from Brazilian tropical forest
title_full_unstemmed Floral biology, nectar secretion pattern and fruit set of a threatened Bignoniaceae tree from Brazilian tropical forest
title_sort Floral biology, nectar secretion pattern and fruit set of a threatened Bignoniaceae tree from Brazilian tropical forest
author Souza, Camila Vaz [UNESP]
author_facet Souza, Camila Vaz [UNESP]
Nepi, Massimo
Machado, Silvia Rodrigues [UNESP]
Guimarães, Elza [UNESP]
author_role author
author2 Nepi, Massimo
Machado, Silvia Rodrigues [UNESP]
Guimarães, Elza [UNESP]
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
University of Siena
dc.contributor.author.fl_str_mv Souza, Camila Vaz [UNESP]
Nepi, Massimo
Machado, Silvia Rodrigues [UNESP]
Guimarães, Elza [UNESP]
dc.subject.por.fl_str_mv Fruit set
Melittophily
Nectar secretion pattern
Nectar sugar composition
Zeyheria tuberculosa
topic Fruit set
Melittophily
Nectar secretion pattern
Nectar sugar composition
Zeyheria tuberculosa
description Zeyheria tuberculosa, a Bignoniaceae tree that occurs in a broad latitudinal range in Brazilian forests, is a threatened species of seasonal tropical forest. It is crucial to enhance the knowledge on this species’ floral biology, since interactions related to reproduction of plants are critical for the long term maintenance of their populations. Thus, we investigated the sexual reproduction and floral biology of Z. tuberculosa, including nectar features, aiming to understand the ecological processes associated to this mutualistic plant-animal interaction in the current modified landscape. For this, we performed experiments under natural conditions and in the laboratory. All the evaluated plants were self-incompatible. Zeyheria tuberculosa was pollinated by Bombus pauloensis, a medium-sized bee, and offered hexose-rich nectar as resource. Flowers were also visited by small-sized bee species, Trigona spinipes, that acted as pollen thief, and Pseudoaugochlora pandora and P. graminae that acted as nectar thieves. These three bee groups exhibited temporal separation in the peak of visits throughout the day. The peak of pollinator visits occurred firstly, which may allow the pollinator to access nectar and pollen loads before they are exploited by thieves. However, bee pollinator visits were scarce, and this fact, associated to the self-incompatibility of Z. tuberculosa, may explain the low fruit set registered in the studied plants. It could be of special concern for this threatened species maintenance in the medium and long term, which depends on the offspring originated by sexual reproduction.
publishDate 2017
dc.date.none.fl_str_mv 2017-02-01
2018-12-11T17:30:54Z
2018-12-11T17:30:54Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1016/j.flora.2016.12.007
Flora: Morphology, Distribution, Functional Ecology of Plants, v. 227, p. 46-55.
0367-2530
http://hdl.handle.net/11449/178558
10.1016/j.flora.2016.12.007
2-s2.0-85008600481
2-s2.0-85008600481.pdf
url http://dx.doi.org/10.1016/j.flora.2016.12.007
http://hdl.handle.net/11449/178558
identifier_str_mv Flora: Morphology, Distribution, Functional Ecology of Plants, v. 227, p. 46-55.
0367-2530
10.1016/j.flora.2016.12.007
2-s2.0-85008600481
2-s2.0-85008600481.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Flora: Morphology, Distribution, Functional Ecology of Plants
0,570
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 46-55
application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
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