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Vine

life science Maturity 5-7 Next article →

A vine is a plant characterized by a growth habit involving trailing or scandent stems. Scandent refers to a climbing growth pattern.

Vine
Vine

The term can also describe the stems or runners themselves, such as when used in wicker work. In some regions, like the British Isles, the word "vine" is used only for grapevines. In those places, all other climbing plants are called climbers. Vines are incredibly successful because they use long stems to reach sunlight. Instead of spending energy on thick, supportive tissue, they use rocks or other plants for support.

Schornstein Kletterpflanze Meidling
Schornstein Kletterpflanze Meidling

This strategy allows plants like kudzu and Japanese honeysuckle to grow very quickly.

To reach the light, vines use many different biological mechanisms. Some tropical vines even exhibit skototropism. This is a form of negative phototropism where the plant grows away from light. By growing away from the light, the vine can find a dark tree trunk to climb. Once it reaches the trunk, it can ascend to brighter regions.

Vine
Vine

Other vines use a growth form to colonize large areas quickly without climbing high. This is seen in periwinkle and ground ivy. Vines can also live in areas with small patches of fertile soil. They can keep their roots in the soil while their leaves reach into bright, exposed areas. This allows them to get the best of both environments.

Plants have evolved many distinct methods for climbing. Charles Darwin classified these into five groups: twining plants, leaf climbers, tendril bearers, root climbers, and hook climbers.

Virginiacreepertendril
Virginiacreepertendril

Some plants, called bines, climb by growing their shoots in a helix or spiral. This is known as twining. Bines often have rough stems or downward-pointing bristles to improve their grip. Others use adventitious, clinging roots, such as the ivy species. Some use twining petioles, which are the stalks that connect leaves to the stem. Others use tendrils, which can be specialized shoots, leaves, or even inflorescences.

Helix diagram-de
Helix diagram-de

Some tendrils even produce adhesive pads to attach strongly to supports. Other vines use thorns, hooked branches, or even specialized bark-climbing methods.

The climbing fetterbush, Pieris phillyreifolia, uses a very unique method. It is a woody shrub-vine that does not use roots, tendrils, or thorns to climb. Instead, it directs its stem into crevices in the bark of fibrous trees. The stem adopts a flattened profile to grow underneath the host tree's outer bark. Eventually, the vine sends out branches that emerge near the top of the tree. This shows how diverse climbing strategies can be. Most vines are flowering plants, but they vary in texture. Woody vines are called lianas, including wisteria and kiwifruit. Nonwoody vines are called herbaceous vines, such as the morning glory.

Twining vines, or bines, have an autonomous direction of rotation. This means the direction they twist is not caused by following the sun. The direction of the twist does not depend on which side of the equator the plant is on. Some bines always twine clockwise, such as the runner bean and bindweed. Others always twine anticlockwise, such as black bryony and climbing honeysuckle.

This movement is thought to be mediated by changes in turgor pressure. This involves volume changes in the epidermal cells of the bending zone. This internal pressure allows the plant to change shape and grip its support.

Vines show remarkable phenotypic plasticity. This means they can change their physical traits in response to their environment. They can grow in both deep shade and full sun. This ability helps them avoid being shaded by neighbors. It also allows them to grow out of reach of herbivores. Some vines even use chemical defenses or change how they allocate biomass if they are attacked. For example, the vine Convolvulus arvensis increases its twining when its leaves are damaged by herbivores. This may help reduce future herbivory.

Delairea odorata - Copenhagen Botanical Garden - DSC08019
Delairea odorata - Copenhagen Botanical Garden - DSC08019

Some vines can even distinguish between different species. The vine Cayratia japonica is more likely to coil around a different species than its own.

In tendrilled vines, the coiling process is highly complex. The tendrils are very sensitive to touch. This action is mediated by hormones like jasmonates, indole-3-acetic acid, and octadecanoids.

Ficus pumila
Ficus pumila

Research has also found ion translocating ATPases in the species Bryonia dioica. These are proteins that move ions across cell membranes. When a tendril is touched, these ATPases increase their activity. This increases transmembrane ion fluxes, which are involved in the early stages of coiling. This deep biological response allows the vine to interact precisely with its physical world. Even a simple-looking vine is a complex system of chemical and physical reactions.

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🖼️ Images & Media (15)
File:"A Momordica charantia- bitter guard plant".jpg
"A Momordica charantia- bitter guard plant".jpg
File:Vine.jpg
Vine.jpg
File:Vine-1.jpg
Vine-1.jpg
File:Schornstein Kletterpflanze Meidling.jpg
Schornstein Kletterpflanze Meidling.jpg
File:Helix diagram-de.png
Helix diagram-de.png
File:Bigvine.jpg
Bigvine.jpg
File:Senecio tamoides 13.jpg
Senecio tamoides 13.jpg
File:Ficus_pumila.jpg
Ficus_pumila.jpg
File:Virginiacreepertendril.jpg
Virginiacreepertendril.jpg
File:Senecioangulatus.jpg
Senecioangulatus.jpg
File:Trachelospermum_jasminoides_HRM1.jpg
Trachelospermum_jasminoides_HRM1.jpg
File:Pandorea jasminoides87.jpg
Pandorea jasminoides87.jpg

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