Data/hora: 10/06/2024 09:15:18

Provedor de dados: | 88
País: | Brazil
Título: | Immunocytochemistry of the mucilage cells of Araucaria angustifolia (Bertol.) Kuntze (Araucariaceae)
Autores: | Mastroberti,Alexandra Antunes; Mariath,Jorge Ernesto de Araujo.
Data: | 2008-03-01
Ano: | 2008
Palavras-chave: | Araucaria angustifolia; Cell development; Cell wall; Monoclonal antibodies; Mucilage cells; Pectin.
Resumo: | The use of monoclonal antibodies for specific pectic epitopes is an important tool in the study of the cell wall. Throughout the development of mucilage cells of Araucaria angustifolia (Bertol.) Kuntze, a gradient of distribution was observed in relation to the pectic de-esterification, as well as to the increase of galactan and arabinan epitope distribution, and to the reduction of arabinogalactans proteins (AGPs) epitope at maturity. AGP and methyl-esterified homogalacturonan (HGA) were present in the mucilage. Galactans and arabinans were also observed in the mucilage, though with weak labelling. Degradation of AGP in the maturity of mucilage cells, in cell wall, as well as in the secretion, could be involved in the programmed cell death (PCD). Different labellings found among parenchyma and mucilage cells suggested differences in the cell wall properties of the mucilage cells.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042008000100002
Editor: | Sociedade Botânica de São Paulo
Relação: | 10.1590/S0100-84042008000100002
Formato: | text/html
Fonte: | Brazilian Journal of Botany  v.31 n.1 2008
Fonte: | info:eu-repo/semantics/openAccess