Fig. 2. Organization of the Arabidopsis shoot meristem. (Left) An
Arabidopsis seedling is shown from a top view. (Right) A longitudinal
section through the shoot apex is shown (figure adapted from
Laux and Schoof, 1997). The
approximate outlines of the central zone (CZ), peripheral zone (PZ) and rib
zone (RZ) are given. For details, see text.