How do tendrils help cucurbit vines grow?

In the plant family Cucurbitaceae, tendrils are specialized, prehensile organs that function as part of a branch complex to anchor and support vining stems. These structures are highly sensitive to contact, a response known as thigmotropism.123

When a tendril brushes against an object, it curves toward the point of contact and wraps around the support, often coiling like a watch spring. This action allows the vine to climb and secure itself to its surroundings. Once the tendril has successfully attached, it develops strong mechanical tissue called sclerenchyma, which provides the necessary strength to support the weight of the growing plant.12