Intracellular Localization of Nigeran in the Wall of Aspergillus aculeatus by Autoradiography with the Electron Microscope

Author:

Gold Michael H.1,Larson Susan1,Segel Irwin H.1,Stocking C. R.1

Affiliation:

1. Departments of Biochemistry and Biophysics and of Botany, University of California, Davis, California 95616

Abstract

Aspergillus aculeatus mycelium was incubated with [ 3 H]glucose under conditions that promote nigeran (mycodextran) accumulation (low pH, in the absence of nitrogen). Autoradiography revealed that essentially all the 3 H was localized around the hyphal perimeter. The results strongly support a hyphal wall location for nigeran.

Publisher

American Society for Microbiology

Subject

Molecular Biology,Microbiology

Reference12 articles.

1. High resolution autoradiography;Caro L. G.;I. Methods. J. Cell Biol.,1962

2. Influence of autolysis on the mycodextran content of Aspergillus niger;Dox A. W.;J. Biol. Chem.,1915

3. Mycodextran, a new polysaccharide in Penicillium expansum;Dox A. W.;J. Biol. Chem.,1914

4. Autoradiographic study of mannan incorporation into the growing cell walls of Saccharomyces cerevisiae;Farkas V.;J. Bacteriol.,1974

5. Regulation of nigeran accumulation by Aspergillus aculeatus;Gold M. H.;J. Bacteriol.,1973

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