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dc.contributor.authorOliveira Junior, Clovis J. F.
dc.contributor.authorCavalari, Aline A. [UNIFESP]
dc.contributor.authorCarpita, Nicholas C.
dc.contributor.authorBuckeridge, Marcos S.
dc.contributor.authorBraga, Marcia R.
dc.identifier.citationTrees-structure and Function. New York: Springer, v. 24, n. 4, p. 713-722, 2010.
dc.description.abstractRudgea jasminoides (Rubiaceae) is a tropical tree species native of the Atlantic Forest in the south of Brazil. Previous studies with leaf cell walls of R. jasminoides showed a different proportion of cross-linked glycans compared to what is usually reported for eudicots. However, due to the difficulties of working with whole plant organs, cell suspensions of R. jasminoides, consisting of predominantly undifferentiated cells with mainly primary cell walls, were used to examine cell walls and extracellular soluble polysaccharides (EP) released into the culture medium. Sugar composition and linkage analysis showed homogalacturonans, xylogalacturonans and arabinogalactans to be the predominant EP. in the cell wall, homogalacturonans and arabinogalactans are the major pectins, and xyloglucans and xylans are the major cross-linking glycans. the presence of xylogalacturonans in the R. jasminoides cell cultures seems to be related to the occurrence of a homogeneous cell suspension with loosely attached cells. Although all alkali extractions from the cell walls yielded amounts of xyloglucan that exceed those of the xylans, the latter was found in a proportion that is higher than what has been usually reported for primary cell walls of most eudicots. the xyloglucan from cell walls of cell suspension cultures of R. jasminoides has low fucosylation levels and high proportion of galactosyl residues, a branching pattern commonly found in storage cell-wall xyloglucans.en
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.relation.ispartofTrees-structure and Function
dc.rightsAcesso restrito
dc.subjectAtlantic Foresten
dc.subjectCell wall polysaccharidesen
dc.titleCell wall polysaccharides from cell suspension cultures of the Atlantic Forest tree Rudgea jasminoides (Rubiaceae)en
dc.contributor.institutionInst Bot
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.contributor.institutionPurdue Univ
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.description.affiliationInst Bot, Nucleo Pesquisa Fisiol & Bioquim, BR-01061970 São Paulo, Brazil
dc.description.affiliationInst Bot, Nucleo Pesquisa Plantas Ornamentais, BR-01061970 São Paulo, Brazil
dc.description.affiliationUniversidade Federal de São Paulo, Diadema, SP, Brazil
dc.description.affiliationPurdue Univ, Dept Plant Pathol, W Lafayette, in 47907 USA
dc.description.affiliationUniv São Paulo, Dept Bot, São Paulo, Brazil
dc.description.affiliationUnifespUniversidade Federal de São Paulo, Diadema, SP, Brazil
dc.description.sponsorshipIDFAPESP: 98/05124-8
dc.description.sponsorshipIDFAPESP: 05/04139-7
dc.description.sourceWeb of Science

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