Figure 4.

Immunoblot of fractionated plant extracts. Equal amounts of chlorophyll (1 μg) from the crude homogenate and the isolated chloroplasts were loaded in each lane. The numbers indicate the number of the transgenic plant line. H, Crude homogenate; C, isolated chloroplasts; UC, untransformed control plant extracts from untransformed Arabidopsis line C24; prefdS, pre-Fd from S. pratensis; fdS, mature from S. pratensis; fdA, endogenous Arabidopsis mature Fd. Asterisks indicate unspecific bands that were detected in the untransformed control plants.