Figure 4.

Enhanced Thylakoid Folding in stn8-1 and stn8-2.

(A) Time dependence of the gravity-driven sedimentation of thylakoid membranes isolated from the wild type, stn7, stn8-1, and stn8-2.

(B) Analysis of thylakoid membranes from stn7, stn8-1, and stn8-2 by electron microscopy. Leaves from 4-week-old seedlings were directly fixed 3 h after the start of the light phase of the growth photoperiod and prepared for transmission electron microscopy. Chloroplast sections are shown for stn7, stn8-1, and stn8-2, as indicated. Bars in the top and bottom panels = 1 and 0.5 μm, respectively.

[See online article for color version of this figure.]