Expression of P450
does not influence the impact of GA
or IAA on hypocotyl and root growth. Images of dark-grown 5-day old seedlings from OCP-1 and wild type in (A) the presence of 1 μM GA3, and (B) the presence of 1 μM IAA. Scale bar is 1 mm. (C, D) Hypocotyl length and (E, F) root length in the presence of 1 μM GA3 (C, E) and 1 μM IAA (D, F) relative to sibling plants grown in the absence of exogenous hormone. OCP lines are arranged by phenotype severity, and variation is expressed as SD; n = 12 sibling plants.