Plant Cell Wall Research Related to Evolution and Chemical Defenses

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dc.contributor.authorDietrich, Sonia M. C.
dc.contributor.authorBuckeridge, Marcos S.
dc.contributor.authorTiné, Marco Aurélio
dc.contributor.authorYoung, Maria Cláudia M.
dc.contributor.authorBolzani, Vanderlan da Silva [UNESP]
dc.contributor.authorBraga, Marcia R.
dc.contributor.authorMarques, Maria Rita
dc.contributor.institutionInstituto de Botânica
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de Mato Grosso do Sul (UFMS)
dc.date.accessioned2014-05-27T11:19:40Z
dc.date.available2014-05-27T11:19:40Z
dc.date.issued1998-12-01
dc.description.abstractThe plant cell wall is composed mainly of polysaccharides some constituted of repeating units of a single sugar, as cellulose or by two or more sugars grouped in repeating oligosaccharide blocks as the galactomannans and xyloglucans. Variations in composition and fine structure of these cell wall polysaccharides have been used as taxonomic markers and in the comprehension of the evolutive process, particularly in the Leguminosae. Partial hydrolysis of these compounds give rise to oligomers, some of which are capable of eliciting the synthesis of defensive substances in plants named phytoalexins. Species which differ in respect to phytoalexin liberation also differ in cell wall composition, particularly in the pectic fraction of the wall. Pectinases (mainly endopolygalacturonases) present in fungi, have been shown to hydrolyze plant cell walls yielding phytoalexin-eliciting oligosaccharides which differ in composition and in eliciting capacity in different species. These differences can be associated with the capacity of a given species to produce phytoalexins. On the other hand, the phytoalexin induction in plants is being used as a method of producing novel bioactive secondary metabolites.en
dc.description.affiliationSecao Fisiol. e Bioquim. de Plantas Instituto de Botânica, Cx. Postal 4005, 01061-970 São Paulo, SP
dc.description.affiliationInstituto de Química Universidade Estadual Paulista, Cx. Postal 355, 14800-900 Araraquara, SP
dc.description.affiliationDepartamento de Bioquímica UFMS, 79070-090 Campo Grande, MS
dc.description.affiliationUnespInstituto de Química Universidade Estadual Paulista, Cx. Postal 355, 14800-900 Araraquara, SP
dc.format.extent727-731
dc.identifier.citationAnais da Academia Brasileira de Ciencias, v. 70, n. 4 PART 1, p. 727-731, 1998.
dc.identifier.issn0001-3765
dc.identifier.lattes4484083685251673
dc.identifier.scopus2-s2.0-0346541708
dc.identifier.urihttp://hdl.handle.net/11449/65658
dc.language.isoeng
dc.relation.ispartofAnais da Academia Brasileira de Ciências
dc.relation.ispartofjcr0.956
dc.relation.ispartofsjr0,418
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectCarbohydrates
dc.subjectCell wall
dc.subjectPhytoalexins
dc.subjectSecondary metabolites
dc.titlePlant Cell Wall Research Related to Evolution and Chemical Defensesen
dc.typeArtigo
dcterms.licensehttp://www.scielo.br/revistas/aabc/paboutj.htm
unesp.author.lattes4484083685251673
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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