The Relationship between Stomatal Behavior and K+, Na+ Fluctuations of Guard Cells in CAM Plant, Agave deserti E.

용설란(Agave deserti Engelm)에 있어서 기공개폐와 공변세포내 K+와 Na+농도변화와의 관계

The K+ and Na+ contents in the guard cells of Agave which had a characteristic of CAM plant were measured by using "Rolling technique". That results were correspond with the change of the stomatal aperture width. That is to say, stomatal movement of Agave is due to the change of K+and Na+ concentration in the guard cells. As Agave which was used in this experiment showed two peaks of which one was at 3 hour and the other was at 24 hour in stomatal aperture width, it was seemed that Agave had both characteristics of CAM and $C_3$pattern.