Clinostat


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Clinostat

 

an apparatus used in plant physiology experiments to eliminate the one-sided influence of certain environmental factors, primarily gravity and light; first employed by the German botanist J. Sachs (in the 1880’s).

A plant attached to the revolving axis of the apparatus will continue to grow in its original direction, because the slow revolution of the axis while not eliminating the action of gravity, does prevent it from acting one-sidedly. A clinostat can be used, for example, to eliminate the phototropic deflections caused by onesided light or to study the time it takes for a plant to react to various stimuli.

References in periodicals archive ?
Comparative effectiveness of a clinostat and a slow-turning lateral vessel at mimicking the ultrastructural effects of microgravity in plant cells.
The monitoring of pressure levels for the subsequent hours revealed that the patient had in clinostats average arterial blood pressure (PA) of 100/70 mmHg with an average heart rate of 78; in orthostats PA was 95/70 with average heart rate of 90.
Han et al., "Fractal dimension as a measure of altered actin cytoskeleton in MC3T3-E1 cells under simulated microgravity using 3-D/2-D clinostats," IEEE Transactions on Biomedical Engineering, vol.