Use este identificador para citar ou linkar para este item: https://locus.ufv.br//handle/123456789/21816
Tipo: Artigo
Título: Histochemistry and storage of organic compounds during basidiosporogenesis in the ectomycorrhizal fungus Pisolithus microcarpus
Autor(es): Campos, André Narvaes da Rocha
Costa, Maurício Dutra
Abstract: Knowledge on the distribution and storage of different organic compounds during basidiosporogenesis in P. microcarpus is paramount to a better understanding of basidiospore recalcitrance to germination. The objective of this work was to detect the presence and distribution of phenolics, reducing sugars, starch, glycogen, total polysaccharides, RNA, and proteins during P. microcarpus basidiosporogenesis. Starch and reducing sugars were not detected in the fungal basidiocarps, while other polysaccharides predominated in the extracellular matrix at the base of the basidiocarp containing unconsolidated peridioles. Phenolics were also detected in this region. Glycogen was present inside the hyphae, basidia, and basidiospores and constitutes an important storage compound in the fungal basidiocarps. In mature basidiospores, RNA accumulation occurred at discrete locations in the cytoplasmatic periphery, while polysaccharides and proteins were shown to predominate in the cell wall. The presence of glycogen, RNA, and proteins inside the basidiospores strongly indicates provision for future germination and suggests that other factors may also influence basidiospore recalcitrance.
Palavras-chave: Basidiosporogenesis
Glycogen
Polysaccharides
Protein
RNA
Storage compounds
Editor: World Journal of Microbiology and Biotechnology
Tipo de Acesso: Springer Science+Business Media B.V.
URI: https://doi.org/10.1007/s11274-010-0353-3
http://www.locus.ufv.br/handle/123456789/21816
Data do documento: 25-Fev-2010
Aparece nas coleções:Artigos

Arquivos associados a este item:
Arquivo Descrição TamanhoFormato 
artigo.pdf
  Until 2100-12-31
Texto completo697,44 kBAdobe PDFVisualizar/Abrir ACESSO RESTRITO


Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.