(A) Notable ubiquitylation targets involved in various aspects of hormone and light signaling, peroxisome biology, and disease resistance. Targets shown in red were only detected in etiolated seedlings but not previously in green seedlings (Kim et al., 2013). See Supplemental Datasets 2 and 3 for the complete list.
(B) Schematic diagram of auxin transport and perception highlighting the key proteins that are ubiquitylated in etiolated seedlings. The proteins and their proposed position within the auxin system are indicated. The structure of IAA is shown at the top right.