LIFE SCIENCE

Detailed explanation-1: -Thigmonasty movement:-The non-directional movement of a plant in response to the contact of an object is called Thigmonasty movement. In the insectivorous plant’s leaves like Drosera, Dionaea the tentacles show variation in movements on coming in contact with an insect.

Detailed explanation-2: -The phenomenon of changing position in response to external stimuli such as light or touch is known as thigmonastic movement. Thigmonastic movement is shown by some plants and fungi in response to touch. Thigmonastic movement is nastic movement and non-directional.

Detailed explanation-3: -Thigmonastic responses include opening and closing leaves, petals, or other parts of the plant as a reaction to touch. Through thigmomorphogenesis, plants change their growth in response to repeated mechanical stress from wind, rain, or other living things.

Detailed explanation-4: -An example of thigmotropism is the coiling movement of tendrils in the direction of an object that it touches. On the other hand, the folding movement of the Mimosa pudica leaflets, can be considered as an example of thigmonastism.