Figure 5From: A cytochrome P450 monooxygenase commonly used for negative selection in transgenic plants causes growth anomalies by disrupting brassinosteroid signalingExpression of P450 SU1 affects hypocotyl and root growth in the dark in the presence and absence of exogenous 24-epibrassinolide. Images of dark-grown 5-day old seedlings from OCP-1 and wild type in the (A) absence and (B) presence of exogenous 1 μM 24-epiBL. Scale bar is 1 mm. (C) Hypocotyl length and (D) root length in the absence (black bars) and presence (white bars) of 1 μM 24-epiBL. (E) Hypocotyl length and (F) root length in the presence of 1 μM 24-epiBL 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.Back to article page