The addition of Mg~(++) increases the relative fluorescence yield of F 685 and decreases that of F 735 for FDM. However, there is almost no effect of Mg~+ on the fluorescence emission spectra for IDM.

• Mg~(2+)提高正常叶绿体F_(685)相对荧光产量,降低F_(735)的相对荧光产量,而对发育不完善的叶绿体膜的荧光发射几乎不发生影响。