ABSTRACT
It is generally accepted that nuclear erythrocytes of some vertebrates are shaped like ellipses. Nevertheless, the formal proof for this has not been presented. Here, the experimental data and theoretical calculations are presented to prove that the shape of nuclear erythrocytes, as a mathematical expectation, is really the ellipse. In addition, allowable limits of deviation of the erythrocytes shape from the ellipse were shown. On the basis of the presented data we have introduced a new parameter (named «ellipsoid coefficient¼) to evaluate how the real cell shape fits to the correct ellipse. The coefficient is the ratio of the real erythrocyte area (A) to the calculated area (S) obtained by a direct measurement of the erythrocyte major (M) and minor (m) axes. We assume that this parameter can be used in taxonomy of the vertebrate animals having nuclear erythrocytes.
Subject(s)
Cell Nucleus , Cell Shape , Erythrocytes/cytology , Animals , Fishes , RanidaeABSTRACT
Lectin binding assay was applied to polyacrylamide slices to study the effects of lysozyme on carbohydrate profile of plasma membranes from liver and heart tissues. The investigations were carried out on polyacrylamide slices immobilized with wheat germ agglutinin or Concanavalin A. It was shown that lysozyme changes the carbohydrate profile of plasma membranes of liver and heart cells.
