Light was applied in all cases on upper half of pulvinus of terminal leaflet of Desmodium gyrans.
Tropic response of pulvinus of Desmodium gyrans: Experiment 131.
Electric shock passes instantaneously through the mass of the pulvinus, stirring up the active tissues to responsive contraction.
The upper part of the pulvinus is thus seen practically to have little influence in hastening the fall.
In condition of sub-tonicity the pulvinus of Mimosa responds to stimulus by an abnormal positive or erectile response.
This experiment proves conclusively that light has a direct stimulating action on the pulvinus, independent of photo-synthesis.
This is accentuated by the expansion of the upper half of the pulvinus which is normally in a state of compression.
Light is shown to exert a direct stimulating action on the pulvinus, independent of photo-synthesis.
Normal records, were taken after long-continued application of water on the pulvinus.
Examples of this are furnished by the cardiac muscle of the animal, the pulvinus of Mimosa, and the stamen of Berberis.