| Registro completo |
| Provedor de dados: |
BABT
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| País: |
Brazil
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| Título: |
Reproductive studies in ipecac (Psychotria ipecacuanha (Brot.) stockes; Rubiaceae): pollen development and morphology
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| Autores: |
Souza,Margarete Magalhães
Martins,Ernane Ronie
Pereira,Telma Nair Santana
Oliveira,Luiz Orlando de
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| Data: |
2008-10-01
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| Ano: |
2008
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| Palavras-chave: |
Ipecac
Heterostyly
Anther anatomy
Microsporogenesis
Exine
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| Resumo: |
The aim of this work was to carry out the reproductive studies on Brazilian accessions of ipecac, Psychotria ipecacuanha. It presented heterostyly, with brevistylous and longistylous flowers. The pollen development was observed from the sections of the anthers embedded in resin. Anther development was normal as usually observed in dicotyledones, displaying four layers: outer epidermis, endothecium, middle layer and inner tapetum. The pollen was bicellular and filled with starch at the microspore stage. Pollen morphology was studied using SEM, which showed pollen polymorphism within and between the two floral morphs. Five types of pollen with reticulate or perforate exine were identified. The characteristics showed that the sexual process was as important as the vegetative propagation for the reproduction of this species.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000500015
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| Editor: |
Instituto de Tecnologia do Paraná - Tecpar
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| Relação: |
10.1590/S1516-89132008000500015
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| Formato: |
text/html
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| Fonte: |
Brazilian Archives of Biology and Technology v.51 n.5 2008
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| Direitos: |
info:eu-repo/semantics/openAccess
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