Wound-induced gall formation occurred only in bush kidney beans, and never in pole beans. Gall was formed most frequently at the site of injuries inflicted on the plant at the peak of reproductive processes. The plants at this stage produced more or less malformed leaf blades and petioles, i. e., distortion and/or bending. The level of endogenous auxin was also highest during the peak of reproductive processes and then declined gradually as the plants approached to normal senescence. Any of

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... , soybeans, cowpeas, and broad beans did not respond to the mechanical wounding inflicted for the gall formation at any stages of plant development.