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Mimosa pudica (also called sensitive plant, sleepy plant, [citation needed] action plant, humble plant, touch-me-not, touch-and-die, or shameplant) [3] [2] is a creeping annual or perennial flowering plant of the pea/legume family Fabaceae. It is often grown for its curiosity value: the sensitive compound leaves quickly fold inward and droop ...
English: Video showing leaves of Mimosa pudica folding inward after being touched - a good example of thigmonasty. This video has a good resolution. This video has a good resolution. Português: Vídeo mostrando as folhas de sensitiva se fechando depois de serem tocadas - um bom exemplo de sismonasia .
Mimosa_pudica_in_Hainan.ogv (Ogg multiplexed audio/video file, Theora/Vorbis, length 56 s, 320 × 240 pixels, 820 kbps overall, file size: 5.43 MB) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
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Mimosa pudica in normal and touched state.. In biology, thigmonasty or seismonasty is the nastic (non-directional) response of a plant or fungus to touch or vibration. [1] [2] Conspicuous examples of thigmonasty include many species in the leguminous subfamily Mimosoideae, active carnivorous plants such as Dionaea and a wide range of pollination mechanisms.
Slower movement, such as the folding of Mimosa pudica leaves, may depend on reversible, but drastic or uneven changes in water pressure in the plant tissues [5] This process is controlled by the fluctuation of ions in and out of the cell, and the osmotic response of water to the ion flux. [6]
Mimosa pudica is well known for its rapid plant movement. The leaves close up and droop when touched. However, this is not a form of tropism, but a nastic movement, a similar phenomenon. Nastic movements are non-directional responses to stimuli (e.g. temperature, humidity, light irradiance), and are usually associated with plants.
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