622 



A. \\ . Galston and D. C. McCune 



the dwarf differs from the normal mainly in elevation of one major 

 peak and depression of another with guaiacol as a substrate. When 

 the dwarf is treated with GA and the peroxidase assayed with guai- 

 acol, these two peaks are reciprocally affected (Figure 4). It thus 

 appears that GA treatment results in a qualitative change in the 

 peroxidase components of the dwarf corn leaf sheath, the changes 

 induced resembling those produced by the normal allele. 



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Fig. 4. Electrophoretic paUcni of peroxidases from leaf sheath of dwarf corn treated 

 with GA. Guaiacol substrate. 



