Scientists described a formula that explains how vines search for and attach to other plants. The team studied common bean vines and watched how the plants grow and move.
They focused on three main processes: elongation (fast stem growth), directional movement toward supports, and the making of special contacting cells called G-fibers. G-fibers are contractile cells that help branches bend.
In tests, researchers compared normal beans with plants made to produce extra brassinosteroid, a plant hormone. Plants with extra hormone had fewer G-fibers and they grew fast but moved without clear direction. The team named this behavior "lazy vines."
Difficult words
- formula — a rule or equation that explains something
- elongation — fast growth in length of a stem
- movement — the change of position toward somethingdirectional movement
- support — a plant or object that a vine can usesupports
- contractile — able to get shorter and cause bending
- brassinosteroid — a natural plant hormone that affects growth
- g-fibers — special cells that touch and help branches bend
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- Have you seen vines on walls or trees near you? Where?
- Why is direction important for a vine when it grows toward a support?
- Do you think the name "lazy vines" fits plants that grow fast but move without clear direction? Why?
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