Figure 5.

A scheme of a hypothetical cell that is a part of the stem motor tissue with marked elements constituting the oscillator and elements involved in circumnutations. It is constructed on the basis of the oscillator model in Desmodium motorium (Engelmann 1996). The model contains numerous elements of the oscillator, indispensable in generation of circumnutations; certain elements are responsible for cell growth and ability of the electrical-hydraulic signal to propagate around the stem. Description of co-operation of individual elements is found in the text.