Inflorescence and floral development of Dahlstedtia species (Leguminosae: Papilionoideae: Millettieae)

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dc.contributor.authorTeixeira, Simone de Padua
dc.contributor.authorRanga, Neusa Taroda [UNESP]
dc.contributor.authorTucker, Shirley C.
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Calif Santa Barbara
dc.date.accessioned2014-05-20T14:03:49Z
dc.date.available2014-05-20T14:03:49Z
dc.date.issued2009-01-01
dc.description.abstractInflorescence and floral development of two tropical legume trees, Dahlstedtia pinnata and Dahlstedlia pentaphylla, occurring in the Atlantic Forest of south-eastern and southern Brazil, were investigated and compared with other papilionoids. Few studies have been made of floral development in tribe Millettieae, and this paper is intended to fill that gap in our knowledge. Dahlstedtia species have an unusual inflorescence type among legumes, the pseudoraceme, which comprises axillary units of three or more flowers, each with a subtending bract. Each flower exhibits a pair of opposite bractcoles. The order of flower initiation is acropetal; inception of the floral organs is as follows: sepals (5), petals (5), carpel (1) plus outer stamens (5) and finally inner stamens (5). Organ initiation in sepal, petal and inner stamen whorls is unidirectional; the carpel cleft is adaxial. The vexillum originates from a tubular-shaped primordium in mid-development and is larger than other petals at maturity, covering the keels. The filament tube develops later after initiation of inner-stamen primordia. Floral development in Dahlstedtia is almost always similar to other papilionoids, especially species of Phaseoleae and Sophoreae. But one important difference is the precocious ovule initiation (open carpel with ovules) in Dahlstedtia, the third citation of this phenomenon for papilionoids. No suppression, organ loss or anomalies occur in the order of primordia initiation or structure. Infra-generic differences in the first stages of ontogeny are rare; however, different species of Dahlstedtia are distinguished by the differing distribution pattern of secretory cavities in the flower. (C) 2009 Elsevier GmbH. All rights reserved.en
dc.description.affiliationUniv São Paulo, Fac Ciencias Farmaceut Ribeirao Preto, Dept Ciencias Farmaceut, BR-14040903 Ribeirao Preto, SP, Brazil
dc.description.affiliationUniv Estadual Paulista, Dept Bot & Zool, BR-15054000 Sao Jose do Rio Preto, SP, Brazil
dc.description.affiliationUniv Calif Santa Barbara, Dept Ecol Evolut & Marine Biol, Santa Barbara, CA 93106 USA
dc.description.affiliationUnespUniv Estadual Paulista, Dept Bot & Zool, BR-15054000 Sao Jose do Rio Preto, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 97/11242-0
dc.format.extent769-781
dc.identifierhttp://dx.doi.org/10.1016/j.flora.2008.10.006
dc.identifier.citationFlora. Jena: Elsevier Gmbh, Urban & Fischer Verlag, v. 204, n. 10, p. 769-781, 2009.
dc.identifier.doi10.1016/j.flora.2008.10.006
dc.identifier.issn0367-2530
dc.identifier.urihttp://hdl.handle.net/11449/22448
dc.identifier.wosWOS:000273490100008
dc.language.isoeng
dc.publisherElsevier Gmbh, Urban & Fischer Verlag
dc.relation.ispartofFlora
dc.relation.ispartofjcr1.365
dc.relation.ispartofsjr0,570
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectDahlstedtia pinnataen
dc.subjectDahistedtia pentaphyllaen
dc.subjectKeel floweren
dc.subjectLeguminosaeen
dc.subjectMillettieaeen
dc.subjectPseudoracemeen
dc.subjectSecretory cavitiesen
dc.titleInflorescence and floral development of Dahlstedtia species (Leguminosae: Papilionoideae: Millettieae)en
dc.typeTrabalho apresentado em evento
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier Gmbh, Urban & Fischer Verlag
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências Letras e Ciências Exatas, São José do Rio Pretopt

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