Figure 3.

The characteristic phenotypes of auxin overproduction in Arabidopsis.

Overexpression of YUC1 (yuc1-D) leads to long hypocotyl and epinastic cotyledons in light grown seedlings (A). In total darkness, yuc1-D has short hypocotyl and lacks an apical hook (B). This figure is reprinted with permission from Science. The original figure was published in Zhao, Y., Christensen, S.K., Fankhauser, C., Cashman, J.R., Cohen, J.D., Weigel, D., and Chory, J. (2001). A role for flavin monooxygenase-like enzymes in auxin biosynthesis. Science 291,306–309.