Anther development, microsporogenesis and microgametogenesis in Heliconia (Heliconiaceae, Zingiberales)

Página do item simplificado
dc.contributor.authorSimao, Daniela Guimaraes
dc.contributor.authorScatena, Vera Lucia
dc.contributor.authorBouman, Ferry
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Amsterdam
dc.date.accessioned2014-02-26T17:28:37Z
dc.date.accessioned2014-05-20T13:56:36Z
dc.date.available2014-02-26T17:28:37Z
dc.date.available2014-05-20T13:56:36Z
dc.date.issued2007-01-01
dc.description.abstractAnther development, micro sporogenesis and microgametogenesis in several species of Heliconia were investigated as part of a complementary embryological study of the Heliconiaceae. All studied Heliconia species present bithecate and tetrasporangiate anthers with fertile pollen grains; only H. rivularis, a natural hybrid, presented sterile pollen grains of variable size and no content. The anther wall has an uniseriate epidermis and endothecium, the latter with helicoidal thickenings, although some cells of the middle layers also showed thickenings; the biseriate tapetum is of amoeboid non-syncytial type, since the tapetum cells did not fuse together forming a true plasmodium. The microsporogenesis is successive leading to isobilateral tetrads. The inaperturate pollen grains had a very reduced exine consisting of a thin, more or less continuous layer with small spines upon; the pollen grain shape is variable among the species, all of them presenting heteropolar pollen, except H. angusta with isopolar ones. Most of these characteristics were shared with other studied Zingiberales, although more studies need to be done. (c) 2006 Elsevier GmbH. All rights reserved.en
dc.description.affiliationUniv Estadual Paulista, Inst Biociencias, Dept Bot, BR-13506900 Rio Claro, SP, Brazil
dc.description.affiliationUniv Amsterdam, IBED, Hugo de Vries Lab, NL-1098 SM Amsterdam, Netherlands
dc.description.affiliationUnespUniv Estadual Paulista, Inst Biociencias, Dept Bot, BR-13506900 Rio Claro, SP, Brazil
dc.format.extent148-160
dc.identifierhttp://dx.doi.org/10.1016/j.flora.2006.05.003
dc.identifier.citationFlora. Jena: Elsevier Gmbh, Urban & Fischer Verlag, v. 202, n. 2, p. 148-160, 2007.
dc.identifier.doi10.1016/j.flora.2006.05.003
dc.identifier.issn0367-2530
dc.identifier.lattes2454528048086769
dc.identifier.urihttp://hdl.handle.net/11449/20236
dc.identifier.wosWOS:000244958000008
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofFlora
dc.relation.ispartofjcr1.365
dc.relation.ispartofsjr0,570
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectamoeboid non-syncytial tapetumpt
dc.subjectHeliconiapt
dc.subjectmicrogametogenesispt
dc.subjectmicrosporogenesispt
dc.subjectpollen grainpt
dc.subjectzingiberalespt
dc.titleAnther development, microsporogenesis and microgametogenesis in Heliconia (Heliconiaceae, Zingiberales)en
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.lattes2454528048086769
unesp.author.orcid0000-0002-7748-5937[1]
unesp.author.orcid0000-0001-8354-3331[2]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claropt

Arquivos

Licença do Pacote
Agora exibindo 1 - 1 de 1
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:

Coleções

Artigos - Botânica - IBRC