highly significantP < 0.001
In contrast to the Chlamydomonas results of Ojakian and Satir (32), our refined spinach EF- face histogram reveals a small but statistically sig- nificant increase in size of the <140/~ particles (P = 0.05) and a similarly small but highly significant decrease in the diameter of the particles >140 ,~, (P < 0.001) upon unstacking.