Data/hora: 06/06/2024 01:09:18

Provedor de dados: | 88
País: | Brazil
Título: | Occurrence of xyloglucan containing protuberances in the storage cell walls of cotyledons of Hymenaea courbaril L.
Autores: | TINÉ,MARCO AURÉLIO SILVA; CORTELAZZO,ANGELO; BUCKERIDGE,MARCOS S.
Data: | 2000-12-01
Ano: | 2000
Palavras-chave: | Xyloglucan; Pectin; Cell wall; Protuberances; Hymenaea courbaril.
Resumo: | Despite the suggestions of its pectic composition, no clear evidence for this has been presented. Here we show the occurrence of such a structure in walls of cells from cotyledons of Hymenaea courbariI L. These cells are known to accumulate large amounts of storage xyloglucan in the wall and, in this case, the protuberances seem to contain this storage polysaccharide rather than pectin. A hypothetical sequence of events leading from wall strands to protuberances was assembled based on scanning electron microscopy observations. On this basis, a tentative model for how polysaccharides are distributed into the wall, near the regions where protuberances are found, is proposed to explain the presence of storage xyloglucan in their composition.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042000000400007
Editor: | Sociedade Botânica de São Paulo
Relação: | 10.1590/S0100-84042000000400007
Formato: | text/html
Fonte: | Brazilian Journal of Botany  v.23 n.4 2000
Fonte: | info:eu-repo/semantics/openAccess