Conservation of Active Ribosomes in Acetone-Treated Cells of Tetrahymena pyriformis

Abstract
The preparation of an acetone powder of cells of T. pyriformis GL is described. A comparison of ribosomal particles isolated from acetone-treated and untreated cells shows that structurally and functionally intact ribosomes can be isolated from acetone-treated cells. Fully active ribosomes were isolated from acetone powder of Tetrahymena stored for 6 mo. at 4.degree. C. This procedure allowed easy storage of large quantities of cells for the bulk preparation of active ribosomes.