Some species can bend their leaf edges slightly by thigmotropism, bringing additional glands into contact with the trapped insect. |
One of the most common examples of thigmotropism is seen in tendrils, which wrap around any object with which they come in contact. |
Biologists have speculated that much of lichen initiation is driven by thigmotropism, or a tendency to grow toward physical contact. |
Negative thigmotropism is movement away from an object, such as a root away from a rock in the soil. |