Pollen diversity in selected species of the tribe Chironieae (Gentianaceae Juss.) that occur in the Atlantic Forest, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2017 |
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=S0102-33062017000100120 |
Resumo: | ABSTRACT Based on molecular data, the tribe Chironieae (Gentianaceae) is divided into three subtribes. This study aims to describe the pollen morphology of representatives of two of the three subtribes that occur in the Atlantic Forest in order to contribute to a better understanding of the palynology of these taxa and to clarify the taxonomy of the family: subtribe Chironiinae (Centaurium erythraea and Zygostigma australe) and subtribe Coutoubeinae (Coutoubea ramosa, C. spicata, Deianira chiquitiana, D. damazioi, D. erubescens, D. nervosa and D. pallescens). Botanical material was obtained from exsicates and treated by acetolysis for light microscopy. Pollen grains were measured and photomicrographed, and the results statistically analyzed. For SEM study, non-acetolyzed pollen grains were sprayed onto metal stubs. The results show that the pollen grains in Chironiinae are medium-sized, prolate-spheroidal or subprolate, 3-colporate, monads, with striate-reticulate ornamentation. In Coutoubeinae the pollen grains are large or medium-sized tetrads with aperture varying between 3-porate or 3-hemicolpates and the sexine microreticulate (D. erubescens) or varied reticulate (the other species). Pollen morphology proved to be an important tool for the systematics of the family since it corroborated the existing placement of species into subtribes based on molecular data. |
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Pollen diversity in selected species of the tribe Chironieae (Gentianaceae Juss.) that occur in the Atlantic Forest, BrazilChironiinaeCoutoubeinaemorphologypalynologypollen grainsABSTRACT Based on molecular data, the tribe Chironieae (Gentianaceae) is divided into three subtribes. This study aims to describe the pollen morphology of representatives of two of the three subtribes that occur in the Atlantic Forest in order to contribute to a better understanding of the palynology of these taxa and to clarify the taxonomy of the family: subtribe Chironiinae (Centaurium erythraea and Zygostigma australe) and subtribe Coutoubeinae (Coutoubea ramosa, C. spicata, Deianira chiquitiana, D. damazioi, D. erubescens, D. nervosa and D. pallescens). Botanical material was obtained from exsicates and treated by acetolysis for light microscopy. Pollen grains were measured and photomicrographed, and the results statistically analyzed. For SEM study, non-acetolyzed pollen grains were sprayed onto metal stubs. The results show that the pollen grains in Chironiinae are medium-sized, prolate-spheroidal or subprolate, 3-colporate, monads, with striate-reticulate ornamentation. In Coutoubeinae the pollen grains are large or medium-sized tetrads with aperture varying between 3-porate or 3-hemicolpates and the sexine microreticulate (D. erubescens) or varied reticulate (the other species). Pollen morphology proved to be an important tool for the systematics of the family since it corroborated the existing placement of species into subtribes based on molecular data.Sociedade Botânica do Brasil2017-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000100120Acta Botanica Brasilica v.31 n.1 2017reponame:Acta Botanica Brasilicainstname:Sociedade Botânica do Brasil (SBB)instacron:SBB10.1590/0102-33062016abb0418info:eu-repo/semantics/openAccessSousa,Hian Carlos Ferreira deGonçalves-Esteves,VaniaMendonça,Cláudia Barbieri Ferreiraeng2017-03-22T00:00:00Zoai:scielo:S0102-33062017000100120Revistahttps://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:2017-03-22T00:00Acta Botanica Brasilica - Sociedade Botânica do Brasil (SBB)false |
dc.title.none.fl_str_mv |
Pollen diversity in selected species of the tribe Chironieae (Gentianaceae Juss.) that occur in the Atlantic Forest, Brazil |
title |
Pollen diversity in selected species of the tribe Chironieae (Gentianaceae Juss.) that occur in the Atlantic Forest, Brazil |
spellingShingle |
Pollen diversity in selected species of the tribe Chironieae (Gentianaceae Juss.) that occur in the Atlantic Forest, Brazil Sousa,Hian Carlos Ferreira de Chironiinae Coutoubeinae morphology palynology pollen grains |
title_short |
Pollen diversity in selected species of the tribe Chironieae (Gentianaceae Juss.) that occur in the Atlantic Forest, Brazil |
title_full |
Pollen diversity in selected species of the tribe Chironieae (Gentianaceae Juss.) that occur in the Atlantic Forest, Brazil |
title_fullStr |
Pollen diversity in selected species of the tribe Chironieae (Gentianaceae Juss.) that occur in the Atlantic Forest, Brazil |
title_full_unstemmed |
Pollen diversity in selected species of the tribe Chironieae (Gentianaceae Juss.) that occur in the Atlantic Forest, Brazil |
title_sort |
Pollen diversity in selected species of the tribe Chironieae (Gentianaceae Juss.) that occur in the Atlantic Forest, Brazil |
author |
Sousa,Hian Carlos Ferreira de |
author_facet |
Sousa,Hian Carlos Ferreira de Gonçalves-Esteves,Vania Mendonça,Cláudia Barbieri Ferreira |
author_role |
author |
author2 |
Gonçalves-Esteves,Vania Mendonça,Cláudia Barbieri Ferreira |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Sousa,Hian Carlos Ferreira de Gonçalves-Esteves,Vania Mendonça,Cláudia Barbieri Ferreira |
dc.subject.por.fl_str_mv |
Chironiinae Coutoubeinae morphology palynology pollen grains |
topic |
Chironiinae Coutoubeinae morphology palynology pollen grains |
description |
ABSTRACT Based on molecular data, the tribe Chironieae (Gentianaceae) is divided into three subtribes. This study aims to describe the pollen morphology of representatives of two of the three subtribes that occur in the Atlantic Forest in order to contribute to a better understanding of the palynology of these taxa and to clarify the taxonomy of the family: subtribe Chironiinae (Centaurium erythraea and Zygostigma australe) and subtribe Coutoubeinae (Coutoubea ramosa, C. spicata, Deianira chiquitiana, D. damazioi, D. erubescens, D. nervosa and D. pallescens). Botanical material was obtained from exsicates and treated by acetolysis for light microscopy. Pollen grains were measured and photomicrographed, and the results statistically analyzed. For SEM study, non-acetolyzed pollen grains were sprayed onto metal stubs. The results show that the pollen grains in Chironiinae are medium-sized, prolate-spheroidal or subprolate, 3-colporate, monads, with striate-reticulate ornamentation. In Coutoubeinae the pollen grains are large or medium-sized tetrads with aperture varying between 3-porate or 3-hemicolpates and the sexine microreticulate (D. erubescens) or varied reticulate (the other species). Pollen morphology proved to be an important tool for the systematics of the family since it corroborated the existing placement of species into subtribes based on molecular data. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-03-01 |
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=S0102-33062017000100120 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000100120 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0102-33062016abb0418 |
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.31 n.1 2017 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_ |
1752126662122668032 |