Shoot and root regeneration of wild-type and fla1-1 mutants.

The average number of shoot (or root)-like growths per root segment (± standard error), that have a distinct point of emergence from the callus and are greater than 1 mm in length. The data were collected from several different plates (after CIM and SIM treatment), and a total of 109 shoot-like projections were counted for each of wild-type and mutant tissue. The asterisk indicates a statistically significant difference between wild-type and fla1-1 (t-test; P