Related Experiment Videos
Effects of angular speed in responses of Paramecium tetraurelia to hypergravity
H Planel1, G Richoilley, C Caratero
1Faculte de Medecine, Toulouse, France.
Microgravity Science and Technology
|September 1, 1990
Abstract:
The paper shows the results of investigations carried out in a single cell organism. Paramecium tetraurelia exposed to different gravitational levels. Hypergravity resulted in a decrease in cell growth rate. The responses depend on g level and angular speed of the centrifuge; furthermore they depend also on small short fluctuations in g levels, delta g, due to the swimming of the cells inside the culture tubes. Delta g depends on angular speed and size of the holding device. The inhibitory effect of hypergravity, for the same angular speed, increases with respect of the diameter of the culture tubes.