Graph of leaf movement in sensitive plant

Graph of leaf movement in sensitive plant

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Caption: Leaf movements of a sensitive plant. Graph showing the bioelectrical responses of the leaves of the sensitive plant Mimosa pudica, which open or curl closed in response to stress. The X-axis is time, Y-axis is strength of leaf reaction (mVolts). When touched, the leaves suddenly curl closed (vertical yellow line). When the stress is associated with slow leaf damage like dehydration, leaf closure is slower and progressive (red line). This natural leaf reaction is a protective mechanism against predators, heat and drought. The movement is due to changes in water content of the plant cells which affect the rigidity of the leaves causing them to curl. See photos B740/228 and B740/229.

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Keywords: botany, experiment, graph, leaf, leaf graph, leaf movement, leaves, mimosa pudica, nature, plant, plants, sensitive, sensitive plant, touch sensitive

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