Stages of development of the floral secretory disk in Tapirira guianensis Aubl. (Anacardiaceae), a dioecious species

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dc.contributor.authorTölke, Elisabeth E.A.Dantas
dc.contributor.authorGaletto, Leonardo
dc.contributor.authorMachado, Sílvia Rodrigues [UNESP]
dc.contributor.authorLacchia, Ana Paula Stecchahn
dc.contributor.authorCarmello-Guerreiro, Sandra Maria
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.contributor.institutionUniversidad Nacional de Córdoba
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Estadual da Paraíba - UEPB
dc.date.accessioned2018-12-11T17:25:54Z
dc.date.available2018-12-11T17:25:54Z
dc.date.issued2015-11-01
dc.description.abstractThe goal of this study was to analyse possible structural and ultrastructural differences between the secretory disk of male and functionally female flowers of Tapirira guianensis (Anacardiaceae) at different developmental stages. Studies were carried out using light, scanning and transmission electron microscopy. Biochemical tests were employed to determine the proportion of sugars in the nectar of the floral morphotypes: they were found to be similar, both predominantly composed of sucrose. In addition to sugars, lipids and phenolic substances were identified in anthetic flowers; thus, the secretory disk is a mixed secretion gland, also called a sensu lato nectary. During anthesis, granulocrine and eccrine secretory mechanisms occur in both floral morphotypes. After anthesis and fertilization of the functionally female flower, only the lipophilic and phenolic secretion continues until the early stages of fruit development. An intrastaminal secretory disk that produces both nectar and lipids is reported for the first time in Anacardiaceae.en
dc.description.affiliationInstituto de Biologia Universidade Estadual de Campinas - UNICAMP Departamento de Botânica
dc.description.affiliationInstituto Multidisciplinario de Biologia Vegetal (CONICET-UNC) y FCEFyN Universidad Nacional de Córdoba, Vélez Sarsfield 1611, CC 495
dc.description.affiliationInstituto de Biociências Universidade Estadual Paulista Júlio de Mesquita Filho - UNESP, Campus de Botucatu
dc.description.affiliationDepartamento de Biologia Universidade Estadual da Paraíba - UEPB, Campus I
dc.description.affiliationUnespInstituto de Biociências Universidade Estadual Paulista Júlio de Mesquita Filho - UNESP, Campus de Botucatu
dc.format.extent533-544
dc.identifierhttp://dx.doi.org/10.1111/boj.12340
dc.identifier.citationBotanical Journal of the Linnean Society, v. 179, n. 3, p. 533-544, 2015.
dc.identifier.doi10.1111/boj.12340
dc.identifier.issn1095-8339
dc.identifier.issn0024-4074
dc.identifier.scopus2-s2.0-84944164584
dc.identifier.urihttp://hdl.handle.net/11449/177539
dc.language.isoeng
dc.relation.ispartofBotanical Journal of the Linnean Society
dc.relation.ispartofsjr1,352
dc.relation.ispartofsjr1,352
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectFloral nectary
dc.subjectIntrastaminal disk
dc.subjectLipids
dc.subjectMixed secretion
dc.subjectNectar
dc.subjectUltrastructure
dc.titleStages of development of the floral secretory disk in Tapirira guianensis Aubl. (Anacardiaceae), a dioecious speciesen
dc.typeArtigo

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