Fig. 2.

Lipid bodies in apical and axillary meristems. Median longitudinal sections of shoot apical meristems (SAMs) (A and C), and axillary meristems (AXMs) of axillary buds (B and D) of long day (LD) plants (A and B) and plants after 4 weeks of short days (SDs) (C and D). Samples were stained with Sudan II (black) for lipid. The LD SAM has very few, light blue-staining lipid bodies (A), whereas all other SAM states possess prominent black lipid bodies (B–D). Boxed areas (A–D) of the uppermost meristem layer (L1) and the rib meristem (RM) are enlarged on the right. TB, terminal bud.