Collenchyma in Panicum maximum (Poaceae): localisation and possible role

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dc.contributor.authorPaiva, EAS
dc.contributor.authorMachado, SR
dc.contributor.institutionUniversidade Federal de Minas Gerais (UFMG)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:48:19Z
dc.date.available2014-05-20T13:48:19Z
dc.date.issued2003-01-01
dc.description.abstractThis work relates the occurrence and distribution of collenchyma in Panicum maximum Jacq. P. maximum leaves were collected at different phases of development and sampled from both the base of the sheath and from the sheath-leaf blade transition area. For the stems, the study was made by using hand-cut sections of the internodal base. In the leaves, analyses of serial sections showed, at the base and sheath-leaf blade transition area, a sudden change of tissue at vascular bundle. The vascular bundles are surrounded by sclerenchyma, both in the sheath and the leaf blade, as well as by fibrous threads that occur on the adaxial side of the central bundles. However, at the base of the sheath and at the sheath-leaf blade transition area, sclerenchyma was substituted for collenchyma. In the stem, the substitution of sclerenchyma associated with vascular bundles for collenchyma occurs at the base of the internode, in the pulvinus region. The analyses from transmission electron microscopy showed the presence of lamellated cell wall and active protoplast in collenchyma cells.en
dc.description.affiliationUniv Fed Minas Gerais, Dept Bot, Inst Biol Sci, BR-31270901 Belo Horizonte, MG, Brazil
dc.description.affiliationUniv Estadual Paulista Julio Mesquita Filho, Dept Bot, Inst Biossci, BR-18618000 Botucatu, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista Julio Mesquita Filho, Dept Bot, Inst Biossci, BR-18618000 Botucatu, SP, Brazil
dc.format.extent69-73
dc.identifierhttp://dx.doi.org/10.1071/BT02046
dc.identifier.citationAustralian Journal of Botany. Collingwood: C S I R O Publishing, v. 51, n. 1, p. 69-73, 2003.
dc.identifier.doi10.1071/BT02046
dc.identifier.issn0067-1924
dc.identifier.lattes2653496390637757
dc.identifier.urihttp://hdl.handle.net/11449/17231
dc.identifier.wosWOS:000181019700006
dc.language.isoeng
dc.publisherCSIRO Publishing
dc.relation.ispartofAustralian Journal of Botany
dc.relation.ispartofjcr0.903
dc.relation.ispartofsjr0,393
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleCollenchyma in Panicum maximum (Poaceae): localisation and possible roleen
dc.typeArtigo
dcterms.licensehttp://www.publish.csiro.au/nid/105/aid/9361.htm
dcterms.rightsHolderC S I R O Publishing
unesp.author.lattes2653496390637757
unesp.author.orcid0000-0002-1440-4810[1]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Botucatupt

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