Restoration of turgor brings about recovery of the leaf to its normal erect position.
We shall now investigate the change induced in a growing organ in the rate of growth by variation of turgor.
In sensitive plants stimulus applied at a distance induces in the responding region an expansion indicative of increase of turgor.
turgor may be increased by enhancing the rate of ascent of sap or by an artificial increase of internal hydrostatic pressure.
The other, which induces diminution of turgor and contraction, will be termed as the excitatory impulse.
I shall now describe the influence of induced diminution of turgor on the rate of growth.
He found that the tension in stems, and presumably its turgor, is increased with rise and decreased with fall of temperature.
I have already described (p. 40) the effects of variation of turgor on the motile pulvinus of Mimosa.
A diminution or negative variation of turgor depresses the rate of growth.
There is a diminution of turgor and contraction in the motile organ, resulting in the fall of leaf.
turgor tur·gor (tûr'gər, -gôr')
The state of being turgid.
The normal fullness or tension produced by the fluid content of blood vessels, capillaries, and cells.