Morfologia de sementes e de estádios iniciais de plântulas de espécies de Bromeliaceae da Amazônia

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dc.contributor.authorSilva, Ivone Vieira
dc.contributor.authorScatena, Vera Lúcia [UNESP]
dc.contributor.institutionDepto. Biologia
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:25:50Z
dc.date.available2014-05-27T11:25:50Z
dc.date.issued2011-04-01
dc.description.abstractSeeds of Aechmea bromeliifolia, A. castelnavii (Bromelioideae); Dyckia duckei, D. racemosa (Pitcairnioideae) and Tillandsia adpressiflora (Tillandsioideae) were collected in the Amazon regions (Mato Grosso) and studied to describe morphological characterization and post-seminal development, which can be taxonomically useful, and to assess percent germination. All the species have epigeous germination and produce cryptocotyledonary plantlets. Seeds have no dormancy and percent germination is high (over 86%), which facilitates the production of seedlings and conservation studies. Exclusive characteristics of the genera include: the seed coat of Aechmea (Bromelioideae) has mucilage that prevents desiccation; whereas that of Dyckia (Pitcairnioideae) has membranaceous wings and that of Tillandsia (Tillandsioideae) has feathery appendages, both of which make dispersal easier and establish the epiphytic habit. Initial post-seminal development of Aechmea (Bromelioideae) and Dyckia (Pitcairnioideae) is marked by the emergence of primary roots, interpreted as a basal character, whereas that of Tillandsia adpressiflora (Tillandsioideae) is marked by the emergence of the cotyledon, interpreted as a derived character. Dyckia and Tillandsia have a small tank only in the seedling phase while the contrary occurs in Aechmea.en
dc.description.affiliationUniversidade Do Estado de Mato Grosso - UNEMAT Depto. Biologia, Av. Perimetral Rogério Silva, 78580-000, Alta Floresta, MT
dc.description.affiliationUniversidade Estadual Paulista - INESP Instituto de Biociências Depto. Botânica, Av. 24-A, 1515, Bela Vista, 13506-900, Rio Claro, SP
dc.description.affiliationUnespUniversidade Estadual Paulista - INESP Instituto de Biociências Depto. Botânica, Av. 24-A, 1515, Bela Vista, 13506-900, Rio Claro, SP
dc.format.extent263-272
dc.identifierhttp://rodriguesia-seer.jbrj.gov.br/index.php/rodriguesia/article/view/127
dc.identifier.citationRodriguesia, v. 62, n. 2, p. 263-272, 2011.
dc.identifier.file2-s2.0-84859554566.pdf
dc.identifier.issn0370-6583
dc.identifier.issn2175-7860
dc.identifier.lattes2454528048086769
dc.identifier.scopus2-s2.0-84859554566
dc.identifier.urihttp://hdl.handle.net/11449/72371
dc.language.isopor
dc.relation.ispartofRodriguésia
dc.relation.ispartofsjr0,734
dc.relation.ispartofsjr0,734
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectAechmea
dc.subjectDyckia
dc.subjectGermination
dc.subjectSeed
dc.subjectTillandsia
dc.subjectAechmea bromeliifolia
dc.subjectBromeliaceae
dc.subjectCotyledon (genus)
dc.titleMorfologia de sementes e de estádios iniciais de plântulas de espécies de Bromeliaceae da Amazôniapt
dc.title.alternativeSeed morphology and early seedling stages in Bromeliaceae from the Amazonen
dc.typeArtigo
dcterms.licensehttp://www.scielo.br/revistas/rod/paboutj.htm#03
unesp.author.lattes2454528048086769
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claropt

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