Effect of malformin on phytochrome- and Ethrel-mediated responses

摘要

On etiolated cuttings ofPhaseolus vulgarismalformin inhibited several phytochromemediated responses. This included hypocotyl hook-opening, leaf expansion, and inhibition of stem elongation. Malformin also inhibited anthocyanin synthesis by sorghum, but had no effect upon lettuce seed germination in the light or dark. Malformin alleviated Ethrel-induced hook-retention, inhibition of stem elongation, and root curvatures, but not Ethrel-induced stimulation of lettuce seed germination in the dark.