Consulta: creatorFacets:"Lima,Marcos Antonio Barbosa de"
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Data/hora: 10/06/2024 07:55:33

Polyphosphate in Zygomycetes: a cytochemical study
Provedor de dados: 58
Autores: Shari'a,Allana Elesbão do Nascimento; Nascimento,Aline Elesbão do; Lima,Marcos Antonio Barbosa de; Campos-Takaki,Galba Maria de; Souza,Wanderley de.
The inorganic phosphorus content, and distribution, structure and localization of polyphosphate in mycelia of zygomycetous fungi was evaluated. Ultrastructural cytochemistry was successfully used to identifying the localization and distribution of polyphosphate in Absidia cylindrospora, Gongronella butleri and Mucor javanicus. The results revealed differences in the cytochemical staining pattern in all species studied and a uniform labeling on the cellular surface (cell wall and citoplasmic membrane). Reaction products were observed in intracellular structures and cellular membrane. Intracellular staining was observed in trabecullar, vacuolar and vesicular structures, in dense bodies and in the cytoplasm. However, the cytochemical staining intensity varied...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ultrastructural cytochemistry; Polyphosphate; Zygomycetes.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000200004

Effects of phosphorus on polyphosphate accumulation by Cunninghamella elegans
Provedor de dados: 58
Autores: Lima,Marcos Antonio Barbosa de; Nascimento,Aline Elesbão do; Souza,Wanderley de; Fukushima,Kazutaka; Campos-Takaki,Galba Maria de.
The content of inorganic polyphosphate and the polymeric degree of these compounds were evaluated during the growth of Cunninghamella elegans in medium containing varying orthophosphate (Pi) concentrations. For this purpose, a combination of chemical methods for polyphosphate extraction and ultrastructural cytochemistry were used. The orthophosphate and glucose consumption was also determined during the fungal cultivation. At Pi concentrations of 0.5, 2.5 and 0.0 g/L, the maximum amounts of biomass were 3.18, 3.29 and 0.24 g/L, respectively. During growth the cells accumulated Pi from the medium. At three days of growth the biomass consumed up to 100 and 95% of Pi from the media at initial concentrations of 0.5 and 2.5 g/L, respectively. Polyphosphate was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Polyphosphate; Accumulation; Ultrastructural cytochemistry; Cunninghamella elegans; Ortophosfate.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822003000400016