Density, porosity, and structure of dried cell walls isolated from Bacillus megaterium and Saccharomyces cerevisiae.
نویسندگان
چکیده
Helium displacement and nitrogen adsorption techniques were used to determine the density and porosity, respectively, of freeze-dried cell walls isolated from Bacillus megaterium KM and Saccharomyces cerevisiae. The densities were 1.302 and 1.180 g/cm3, respectively, suggesting noncrystalline solids. The porosities were extremely small, indicating that the cell walls had collapsed and become essentially impervious upon lyophilization.
منابع مشابه
Porosity of Isolated Cell Walls of Saccharomyces Cerevisiae and Bacillus Megaterium.
Gerhardt, Philipp (The University of Michigan, Ann Arbor), and Jean A. Judge. Porosity of isolated cell walls of a yeast and a bacillus. J. Bacteriol. 87:945-951. 1964.-Decagram masses of cell walls were isolated from Saccharomyces cerevisiae and Bacillus megaterium; their porosity was examined by measuring the extent of uptake with polyethylene glycols and dextrans varying in molecular weight ...
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ورودعنوان ژورنال:
- Journal of bacteriology
دوره 129 2 شماره
صفحات -
تاریخ انتشار 1977