Androecia in two Clusia species: development, structure and resin secretion

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dc.contributor.authorSa-Haiad, B.
dc.contributor.authorSilva, C. P.
dc.contributor.authorPaula, R. C. V.
dc.contributor.authorRocha, J. F.
dc.contributor.authorMachado, S. R. [UNESP]
dc.contributor.institutionUniversidade Federal do Rio de Janeiro (UFRJ)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal Rural do Rio de Janeiro (UFRRJ)
dc.date.accessioned2015-10-21T13:10:57Z
dc.date.available2015-10-21T13:10:57Z
dc.date.issued2015-07-01
dc.description.abstractClusia fluminensis and C.lanceolata are dioecious shrubs having resiniferous flowers with strongly distinct androecia. The aim of this study was to investigate the development and anatomy of their androecia and the ultrastructure, histochemistry and secretory process of their androecium resin glands, examining whether the cellular aspects of resin secretion differed between these two morphologically distinct androecia. Stamens differ, being free in C.fluminensis and clustered in a synandrium in C.lanceolata. Staminode sterility is due to the undifferentiated nature of the anthers in C.lanceolata and degeneration of meiocytes and anther indehiscence in C.fluminensis. Resin is produced in subepidermal cavities and canals with wide lumens. In the secretory stage, epithelial cells present sinuous walls, voluminous nuclei, polymorphic plastids associated with periplastidial reticulum, mitochondria, oil bodies, multivesicular bodies, endoplasmic reticulum and dictyosomes. The resin is released through rupture points on the distal surface of stamens and staminodes, associated with disrupted cavities and canals. Our results show morphological diversity associated with functional similarity. Also, a secretion pattern shared by the two species includes initiation of the secretory process in young floral buds, compartmentalisation of the secretion in pre-anthesis buds and release of secretions at anthesis. Cellular aspects of resin secretion in these species are quite similar, as are the chemical identities of the main components of the floral resins of the genus.en
dc.description.affiliationUniversidade Federal do Rio de Janeiro - Departamento de Bot^anica, Museu Nacional, Rio de Janeiro, Brazil
dc.description.affiliationUniversidade Federal Rural do Rio de Janeiro - Departamento de Botânica, Instituto de Biologia, Serop edica, Brazil
dc.description.affiliationUniversidade Estadual Paulista - Departamento de Botânica, Instituto de Biociências, Botucatu, Brazil
dc.description.affiliationUnespUniversidade Estadual Paulista - Departamento de Botânica, Instituto de Biociências, Botucatu, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdFAPESP: 2008/55434-7
dc.description.sponsorshipIdFAPESP: 2011/13208-3
dc.description.sponsorshipIdFAPERJ: E-26/111.207/2014
dc.description.sponsorshipIdCNPq: 447624/2014-8
dc.format.extent816-824
dc.identifierhttp://onlinelibrary.wiley.com/doi/10.1111/plb.12314/abstract;jsessionid=A7919A5A1393510476B6AC1B0824EF18.f01t04
dc.identifier.citationPlant Biology. Hoboken: Wiley-blackwell, v. 17, n. 4, p. 816-824, 2015.
dc.identifier.doi10.1111/plb.12314
dc.identifier.issn1435-8603
dc.identifier.lattes2653496390637757
dc.identifier.urihttp://hdl.handle.net/11449/128555
dc.identifier.wosWOS:000356881400005
dc.language.isoeng
dc.publisherWiley-Blackwell
dc.relation.ispartofPlant Biology
dc.relation.ispartofjcr2.156
dc.relation.ispartofsjr0,939
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectAnatomyen
dc.subjectDevelopmenten
dc.subjectFloweren
dc.subjectResinen
dc.subjectSecretionen
dc.subjectUltrastructureen
dc.titleAndroecia in two Clusia species: development, structure and resin secretionen
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderWiley-Blackwell
unesp.author.lattes2653496390637757
unesp.author.orcid0000-0003-0425-4852[1]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Botucatupt

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