Fig. 9. Cell division defects in scz embryos. Wild-type (left panels) and scz mutant (right panels) embryos stained with Toluidine Blue. (A) In torpedo stage scz embryos, a periclinal division of the presumptive cortex/endodermis initial daughter cell occurs earlier (arrow) than in wild type. (B) In walking stick embryos, an extra periclinal division in scz mutants results in the formation of a new layer in the ground tissue (arrowhead). The periclinal division of the epidermis/lateral root cap initial is indicated with an arrow. Bar, 25 µm.

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