Multiple pleurograms in Chamaecrista moench (Leguminosae, caesalpinioideae)

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dc.contributor.authorDe-Paula, Orlando Cavalari [UNESP]
dc.contributor.authorTrombert Oliveira, Denise Maria [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de Minas Gerais (UFMG)
dc.date.accessioned2014-05-20T13:48:49Z
dc.date.available2014-05-20T13:48:49Z
dc.date.issued2008-07-01
dc.description.abstractAccording to the literature, the seeds of Chamaecrista lack pleurograms and have pitted testas aligned in vertical lines. Preliminary observations have revealed that these small structures consist of superficial alterations of the testa that are coloured differently to the rest of the seed coat and stand out as pits. However, no anatomical inspection has yet determined the precise composition of these pits. The present work examined the morphology, surface micromorphology, anatomy, and histochemistry of the seed coat of mature seeds of C. desvauxii var. latistipula, C. flexuosa, and C. nictitans var. patellaria in order to elucidate the structural nature of the seed coat pits. For this, seed coats were studied using scanning electron microscopy and light microscopy. Structural modifications were examined in the seed coats of the studied species, and variations were noted in the mucilaginous layer, in the thickness of the palisade layer, and in the presence of larger hypodermic cells. Based on the anatomical features observed, and comparing these with published data on pleurograms in the Caesalpinioideae, it was determined that the structures referred to previously as tegumental pits on Chamaecrista seeds are actually small and numerous pleurograms, reported here for the first time. (c) 2008 The Linnean Society of London.en
dc.description.affiliationUniv Estadual Paulista, Programa Posgrad Ciencias Biol Bot, Inst Biociencias, BR-18618000 Botucatu, SP, Brazil
dc.description.affiliationUniversidade Federal de Minas Gerais (UFMG), Dept Bot, Inst Ciencias Biol, BR-31270901 Belo Horizonte, MG, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Programa Posgrad Ciencias Biol Bot, Inst Biociencias, BR-18618000 Botucatu, SP, Brazil
dc.format.extent487-492
dc.identifierhttp://dx.doi.org/10.1111/j.1095-8339.2008.00832.x
dc.identifier.citationBotanical Journal of The Linnean Society. Oxford: Blackwell Publishing, v. 157, n. 3, p. 487-492, 2008.
dc.identifier.doi10.1111/j.1095-8339.2008.00832.x
dc.identifier.issn0024-4074
dc.identifier.urihttp://hdl.handle.net/11449/17380
dc.identifier.wosWOS:000257717600006
dc.language.isoeng
dc.publisherBlackwell Publishing
dc.relation.ispartofBotanical Journal of the Linnean Society
dc.relation.ispartofjcr3.124
dc.relation.ispartofsjr1,352
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectChamaecrista desvauxii var. latistipulaen
dc.subjectChamaecrista flexuosaen
dc.subjectChamaecrista nictitans var. patellariaen
dc.subjectFabaceaeen
dc.subjectmorphologyen
dc.subjectseed anatomyen
dc.subjectseed coaten
dc.subjectSEMen
dc.subjectsurface micromorphologyen
dc.subjecttestaen
dc.titleMultiple pleurograms in Chamaecrista moench (Leguminosae, caesalpinioideae)en
dc.typeArtigo
dcterms.licensehttp://www.blackwellpublishing.com/pdf/bij_caf.pdf
dcterms.rightsHolderBlackwell Publishing

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