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Effect of picloram and IAA on morphology of wild-type seedlings of Arabidopsis and AO activities in the seedlings. a, Picture of wild-type, sur1 mutant, picloram, and IAA-treated 8-d-old seedlings. b, Crude enzyme extracts were obtained from wild-type, sur1, picloram, and IAA-treated 8-d-old seedlings, and AO activity was developed using IAld as a substrate. Sixty micrograms of protein was loaded in each lane.
