Growth Conditions on Cytokinesis in Axenic Strains of a Cellular Slime Mold
- 1 January 1978
- journal article
- research article
- Published by Japan Society for Cell Biology in Cell Structure and Function
- Vol. 3 (2) , 123-128
- https://doi.org/10.1247/csf.3.123
Abstract
In axenic strains of Dictyostelium discoideum, approximately 1/4 of vegetative amoebae were multinucleated throughout the growth phase, and synchronous mitosis were observed in these cells. In contrast to vegetative amoebae, all spores of these strains were mononucleated. The percentage of multinucleated amoebae in strain A-3 increased to nearly 70% when the temperature was raised to 27.degree. C from 22.degree. C, but it decreased during prolonged incubation at 27.degree. C. Karyokinesis proceeded at a constant rate even at 27.degree. C. Cytokinesis in this strain is not co-ordinated with karyokinesis. The number of multinucleated cells was drastically reduced in amoebae grown on both live and dead bacteria [Aerobacter aerogenes]. Polystyrene latex particles, the diameter of bacteria, did not affect the rate of production.This publication has 0 references indexed in Scilit: