Sensitive plant, Mimosa

The sensitive plant (Mimosa pudica) also undergoes a remarkable change in leaf shape triggered by mechanical touch (Fig. 2). A light touch or vibration produces a sudden drooping of the leaves, the result of a dramatic reduction in turgor pressure in cells at the base of each leaflet and leaf. As in the Venus flytrap, the drop in turgor pressure results from K+ release followed by the efflux of water. 

The roots of the sensitive plants of the genus Mimosa are supposed to be psychoactive. I hey are known to contain DMT. 

Wallace has recently studied the effect of temperature upon the sensitive plant by measuring the angle of movement of the branches. The sensitivity of Mimosa is lost at 60, which is about the coagulation temperature of albumin. The sensitivity also becomes zero at 12.5°, a temperature at which there can be no ice crystals. The temperature of maximum activity was about 40°. Frogs can be made completely insensitive to external influences by putting them in water at 0°, and they are also subject to heat narcosis in very warm water. There is a striking parallelism between plants and animals in their responses to heat and cold coagulation. The... 

Leucaenol) Mimosa pudica (sensitive plant) Mimosine-(Fe(II) (FR... 

From methylated seleno-amino acids L-Selenomethionine I -Se-methylselenocysteine From 1-Selenomethionine, i-.Se-Methylselenocysteine Leucaena kucocephala (jumbie bean), Mimosa pudica (sensitive plant) (Fabaceae) [leaf, seed] M. pudica leaves close on mechanical stimulation Universal... 

Mimosa (sensitive plant) Mucuna (mucuna) Myrospermum (myrospermum) Myroxylon (myroxylon)... 

Movement also plants can move. Leaves of sensitive plants (e.g. Mimosa pudica) fold within a few seconds after being disturbed or subjected to sudden environmental changes. 

Potassium channels can have a frequency of one or more channels per square micrometer of membrane surface area. Cellular control can be exerted on the opening of such K+ channels, because concentrations of cytosolic Ca2+ above 3 x 10-4 mol m-3 (0.3 p,M) can inhibit channel opening. Other ion channels in plant membranes are specific for Ca2+ or Cl-. Besides being sensitive to the electrical potential difference across a membrane, some channels apparently open upon stretching of a membrane. Also, many plant cells are excitable and can transmit action potentials, a process in which ion channels are undoubtedly involved. For example, action potentials have been measured for plants responsive to tactile stimuli, such as rapid leaf movements in Mimosa pudica and insectivorous plants (Dionaea spp., Drosera spp.), as well as along the phloem for many species. In addition, ion channels are involved in the long-term maintenance of specific ion concentrations in plant cells. 

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