| Abstract: | Numerous granules are formed in frog erythrocytes under the influence of cardiotrast (C) (diethanolamine-3,5-diiodo-4-pyridone-1-acetic acid). However, as revealed by cytospectrophotometric investigation and X-ray microanalysis, no C was accumulated in these granules. It is known that C can dissociate into diethanolamine and 3,5-diiodo-4-pyridone-1-acetic acid. It was assumed that under the influence of C granule formation may occur at the expense of an uncharged diethanolamine form penetrating into lysosome-like structures to be accumulated by protonation process. Diethanolamine was found to provoke granule formation in frog erythrocytes. It is impossible to reveal substance in granules because it is colourless and has no ultraviolet absorbtion band. Under the influence of some inhibitors of energy metabolism on granule formation and the granules formed, their inhibitory effect is exerted on the process of granule formation. In granules isolated by differential centrifugation activity of some marker lysosomal enzymes was found which enabled us to attribute these granules to lysosome-like structures. |
