OLUBILIZATION AND CHARACTERIZATION OF THE CELL WALL-LINKED TREHALASE FROM ASCOSPORES OF <i>SCHIZOSACCHAROMYCES POMBE</i>

Authors

  • J. Vicente
  • M. Gacto
Keywords: trehalase, cell wall, <i>Schizosaccharomyces pombe</i>, novozym

Abstract

The location of trehalase in isolated ascospores from Schizosaccharomyces pombe has been investigated by a cytochemical method based on the formation by eugenol of insoluble complexes that are produced extracellularly during a reaction coupled to the trehalase activity. Most of the enzyme activity present in cell extracts is linked to the ascospore cell wall. A partial solubilization of the particulate trehalase was achieved by controlled treatment of isolated cell walls with the lytic system novozym. The elution pattern obtaiiled by molecular filtration of the enzyme solubilized from the walls shows a broad molecular heterogeneity suggesting a possible glycoprotein nature of the enzyme. Assays for activation and analysis of kinetic properties revealed that this activity is due to a trehalase of the so-called nonregulatory type.

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Author Biographies

J. Vicente

Universidad de Murcia

M. Gacto

Universidad de Murcia
How to Cite
Vicente, J., & Gacto, M. (1990). OLUBILIZATION AND CHARACTERIZATION OF THE CELL WALL-LINKED TREHALASE FROM ASCOSPORES OF <i>SCHIZOSACCHAROMYCES POMBE</i>. Anales de Biología, (16), 179–189. Retrieved from https://revistas.um.es/analesbio/article/view/33761
Issue
Section
Biología molecular y microbiana