Anther specializations related to the division of labor in Microlicia cordata (Spreng.) Cham. (Melastomataceae)
Autor(a) principal: | |
---|---|
Data de Publicação: | 2018 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Acta Botanica Brasilica |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000300349 |
Resumo: | ABSTRACT In heterantherous flowers, some anthers have an attraction and feeding function, while others are related to plant reproduction. Microlicia cordata has dimorphic stamens organized in two cycles: the antesepalous one with large stamens and pink anthers, and the antepetalous one with small stamens and yellow anthers. Division of labor was analyzed using the parameters of structure, composition, amount and estimated viability of pollen, and the color of floral parts. The anthers of the pollinating stamens were larger than the anthers of the feeding stamens, although anatomically similar. There was a difference in the amount of pollen produced by the anthers of the two cycles, but no difference was found in pollen viability. Considering a bee color vision model, the color of the anthers of the pollinating stamens contrasted less with that of the corolla, and thus is probably less attractive to visitors. Conversely, the anthers of the feeding stamens and the ventral appendage of the connective of the pollinating stamens contrasted more with the corolla, presenting the same color to the pollinators. These results are in accordance with the idea of division of labor among anthers of heterantherous flowers, especially regarding the quantity of pollen and the color of the floral parts. |
id |
SBB-1_276fea4d4f0596b7b6f2ffe3859b992d |
---|---|
oai_identifier_str |
oai:scielo:S0102-33062018000300349 |
network_acronym_str |
SBB-1 |
network_name_str |
Acta Botanica Brasilica |
repository_id_str |
|
spelling |
Anther specializations related to the division of labor in Microlicia cordata (Spreng.) Cham. (Melastomataceae)color visiondivision of laborheterantheryMicroliciapollen dilemmaporicidal anthersABSTRACT In heterantherous flowers, some anthers have an attraction and feeding function, while others are related to plant reproduction. Microlicia cordata has dimorphic stamens organized in two cycles: the antesepalous one with large stamens and pink anthers, and the antepetalous one with small stamens and yellow anthers. Division of labor was analyzed using the parameters of structure, composition, amount and estimated viability of pollen, and the color of floral parts. The anthers of the pollinating stamens were larger than the anthers of the feeding stamens, although anatomically similar. There was a difference in the amount of pollen produced by the anthers of the two cycles, but no difference was found in pollen viability. Considering a bee color vision model, the color of the anthers of the pollinating stamens contrasted less with that of the corolla, and thus is probably less attractive to visitors. Conversely, the anthers of the feeding stamens and the ventral appendage of the connective of the pollinating stamens contrasted more with the corolla, presenting the same color to the pollinators. These results are in accordance with the idea of division of labor among anthers of heterantherous flowers, especially regarding the quantity of pollen and the color of the floral parts.Sociedade Botânica do Brasil2018-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000300349Acta Botanica Brasilica v.32 n.3 2018reponame:Acta Botanica Brasilicainstname:Sociedade Botânica do Brasil (SBB)instacron:SBB10.1590/0102-33062017abb0358info:eu-repo/semantics/openAccessVelloso,Mariana de Souza CarvalhoBrito,Vinícius Lourenço Garcia deCaetano,Ana Paula SouzaRomero,Rosanaeng2018-09-11T00:00:00Zoai:scielo:S0102-33062018000300349Revistahttps://www.scielo.br/j/abb/ONGhttps://old.scielo.br/oai/scielo-oai.phpacta@botanica.org.br||acta@botanica.org.br|| f.a.r.santos@gmail.com1677-941X0102-3306opendoar:2018-09-11T00:00Acta Botanica Brasilica - Sociedade Botânica do Brasil (SBB)false |
dc.title.none.fl_str_mv |
Anther specializations related to the division of labor in Microlicia cordata (Spreng.) Cham. (Melastomataceae) |
title |
Anther specializations related to the division of labor in Microlicia cordata (Spreng.) Cham. (Melastomataceae) |
spellingShingle |
Anther specializations related to the division of labor in Microlicia cordata (Spreng.) Cham. (Melastomataceae) Velloso,Mariana de Souza Carvalho color vision division of labor heteranthery Microlicia pollen dilemma poricidal anthers |
title_short |
Anther specializations related to the division of labor in Microlicia cordata (Spreng.) Cham. (Melastomataceae) |
title_full |
Anther specializations related to the division of labor in Microlicia cordata (Spreng.) Cham. (Melastomataceae) |
title_fullStr |
Anther specializations related to the division of labor in Microlicia cordata (Spreng.) Cham. (Melastomataceae) |
title_full_unstemmed |
Anther specializations related to the division of labor in Microlicia cordata (Spreng.) Cham. (Melastomataceae) |
title_sort |
Anther specializations related to the division of labor in Microlicia cordata (Spreng.) Cham. (Melastomataceae) |
author |
Velloso,Mariana de Souza Carvalho |
author_facet |
Velloso,Mariana de Souza Carvalho Brito,Vinícius Lourenço Garcia de Caetano,Ana Paula Souza Romero,Rosana |
author_role |
author |
author2 |
Brito,Vinícius Lourenço Garcia de Caetano,Ana Paula Souza Romero,Rosana |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Velloso,Mariana de Souza Carvalho Brito,Vinícius Lourenço Garcia de Caetano,Ana Paula Souza Romero,Rosana |
dc.subject.por.fl_str_mv |
color vision division of labor heteranthery Microlicia pollen dilemma poricidal anthers |
topic |
color vision division of labor heteranthery Microlicia pollen dilemma poricidal anthers |
description |
ABSTRACT In heterantherous flowers, some anthers have an attraction and feeding function, while others are related to plant reproduction. Microlicia cordata has dimorphic stamens organized in two cycles: the antesepalous one with large stamens and pink anthers, and the antepetalous one with small stamens and yellow anthers. Division of labor was analyzed using the parameters of structure, composition, amount and estimated viability of pollen, and the color of floral parts. The anthers of the pollinating stamens were larger than the anthers of the feeding stamens, although anatomically similar. There was a difference in the amount of pollen produced by the anthers of the two cycles, but no difference was found in pollen viability. Considering a bee color vision model, the color of the anthers of the pollinating stamens contrasted less with that of the corolla, and thus is probably less attractive to visitors. Conversely, the anthers of the feeding stamens and the ventral appendage of the connective of the pollinating stamens contrasted more with the corolla, presenting the same color to the pollinators. These results are in accordance with the idea of division of labor among anthers of heterantherous flowers, especially regarding the quantity of pollen and the color of the floral parts. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-09-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000300349 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000300349 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0102-33062017abb0358 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Botânica do Brasil |
publisher.none.fl_str_mv |
Sociedade Botânica do Brasil |
dc.source.none.fl_str_mv |
Acta Botanica Brasilica v.32 n.3 2018 reponame:Acta Botanica Brasilica instname:Sociedade Botânica do Brasil (SBB) instacron:SBB |
instname_str |
Sociedade Botânica do Brasil (SBB) |
instacron_str |
SBB |
institution |
SBB |
reponame_str |
Acta Botanica Brasilica |
collection |
Acta Botanica Brasilica |
repository.name.fl_str_mv |
Acta Botanica Brasilica - Sociedade Botânica do Brasil (SBB) |
repository.mail.fl_str_mv |
acta@botanica.org.br||acta@botanica.org.br|| f.a.r.santos@gmail.com |
_version_ |
1752126662966771712 |