Differentiate between: thigmotropism and thigmonasty - Vidyadip

Question

Differentiate between:
thigmotropism and thigmonasty

✓

Answer

Thigmotropism

It is a tropic movement in response to the stimulus of touch.
The direction of response is dependent on the direction of the stimulus.
Example : Climbing plants like money plant and grapevines coil around any object they touch in whichever direction thestimulus came from.

Thigmonasty :

It is a nastic movement in response to the stimulus of touch.
It is independent of the direction of stimulus.
Example : Leaflets of touch me not plant droop when touched from any side.

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