Anatomical characterization of vegetative organs and scapes of Rondonanthus (Eriocaulaceae, Poales)

dc.contributor.authorde Oliveira, Fernanda Martins Gonzaga [UNESP]
dc.contributor.authorOriani, Aline [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T16:50:11Z
dc.date.available2018-12-11T16:50:11Z
dc.date.issued2016-12-01
dc.description.abstractEriocaulaceae is a pantropical family and comprises ten genera. Rondonanthus is endemic to the north region of South America and comprises six species. The anatomy of roots, stem, leaves, and scapes were studied in four species to characterize the genus and to identify characteristics with taxonomic value. The following characteristics are diagnostic of Rondonanthus: roots—heterogeneous cortex with an aerenchyma supported by arm cells and vascular cylinder with a central metaxylem vessel element; stems—idioblasts with druses in the cortex and in the pith; leaves—Malpighian hairs, hypodermis in the adaxial surface, chlorenchyma with arm cells, druse idioblasts in the mesophyll, and vascular bundle sheath extensions with rounded cells; scapes—Malpighian hairs and chlorenchyma with arm cells. Rondonanthus capillaceus differed from the remaining studied species by presenting roots with a homogeneous cortex with thin-walled cells; filiform leaves without stomata and trichomes but with a chlorophyllous epidermis and a parenchymatous mesophyll and only one central vascular bundle without sheath extension. Such differences may be related to the habitat, since this species grows on river margins and requires hydrodynamic organs. The number of vascular bundles in the leaves is a useful characteristic to differentiate among species.en
dc.description.affiliationUNESP – Departamento de Botânica Instituto de Biociências Universidade Estadual Paulista, C Postal 199, Av. 24A, 1515 – Bela Vista
dc.description.affiliationUnespUNESP – Departamento de Botânica Instituto de Biociências Universidade Estadual Paulista, C Postal 199, Av. 24A, 1515 – Bela Vista
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdCNPq: 168277/2014-0
dc.description.sponsorshipIdFAPESP: 2011/11536-3
dc.description.sponsorshipIdFAPESP: 2013/00383-7
dc.format.extent1103-1115
dc.identifierhttp://dx.doi.org/10.1007/s40415-016-0295-6
dc.identifier.citationRevista Brasileira de Botanica, v. 39, n. 4, p. 1103-1115, 2016.
dc.identifier.doi10.1007/s40415-016-0295-6
dc.identifier.file2-s2.0-85032121922.pdf
dc.identifier.issn1806-9959
dc.identifier.issn0100-8404
dc.identifier.scopus2-s2.0-85032121922
dc.identifier.urihttp://hdl.handle.net/11449/170303
dc.language.isoeng
dc.relation.ispartofRevista Brasileira de Botanica
dc.relation.ispartofsjr0,269
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectAnatomy
dc.subjectLeaf
dc.subjectReproductive axis
dc.subjectRoot
dc.subjectStem
dc.titleAnatomical characterization of vegetative organs and scapes of Rondonanthus (Eriocaulaceae, Poales)en
dc.typeArtigo

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