Potassium flux: a common feature of albizzia leaflet movement controlled by phytochrome or endogenous rhythm.
Leaflets close when potassium moves into dorsal and out of ventral pulvinule motor cells and open when the flux direction is reversed. This is true whether leaflet movement is controlled by an endogenous rhythm or by phytochrome.
Satter
R L
RL
Galston
A W
AW