Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/97993
Type: Artigo
Title: Critical electrolyte concentration of heterochromatin and euchromatin In cells of starved animals
Author: Amaral, Mauricio J. L. V.
Mello, Maria Luiza S.
Abstract: [No abstract available]
The critical electrolyte concentration (CEC) of chromatin, considered to be the salt concentration at which the phenomenon of metachromasy is completely abolished, when using toluidine blue as the cationic dye and Mg2+ ions as inorganic cations, was determined for the euchromatin and chromocentral heterochromatin of cells from starved animals. The objective was to determine variations in CEC induced by the starvation stress, which could be related to structural alterations and/or to the composition of these chromatin types. The cells investigated were from Triatoma infestans Malpighian tubules and mouse liver. It was found that the CEC values were affected both by fasting and by refeeding, the effect varying according to chromatin type and the cell system under consideration.
The critical electrolyte concentration (CEC) of chromatin, considered to be the salt concentration at which the phenomenon of metachromasy is completely abolished, when using toluidine blue as the cationic dye and Mg2+ ions as inorganic cations, was determined for the euchromatin and chromocentral heterochromatin of cells from starved animals. The objective was to determine variations in CEC induced by the starvation stress, which could be related to structural alterations and/or to the composition of these chromatin types. The cells investigated were from Triatoma infestans Malpighian tubules and mouse liver. It was found that the CEC values were affected both by fasting and by refeeding, the effect varying according to chromatin type and the cell system under consideration.
Subject: Azul de toluidina
Magnésio
Triatoma infestans
Cromatina
Solução eletrolitica
Túbulos de Malpighi
Country: Inglaterra
Editor: University of Cambridge/Faculty Press
Citation: Cytobios. , v. 59, n. 238-239, p. 159 - 165, 1989.
Rights: Fechado
Identifier DOI: 0
Address: https://www.ncbi.nlm.nih.gov/pubmed/2699727
Date Issue: 1989
Appears in Collections:IB - Artigos e Outros Documentos

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