Partial gas chromatograph traces of the component fatty acids of phosphatidylcholine extracted from leaves of (A) wild-type Arabidopsis, (B) wild-type Arabidopsis sprayed with the sodium soap of arachidonic acid (Δ5,8,11,14–20:4; AA), (C) wild-type Arabidopsis sprayed with the sodium soap of homogamma-linolenic acid (Δ8,11,14–20:3; HGL), (D) transgenic Arabidopsis line 9.7 expressing a fat-1 cDNA, (E) transgenic Arabidopsis line 9.7 sprayed with the sodium soap arachidonic acid, and (F) transgenic Arabidopsis line 9.7 sprayed with the sodium soap of homogamma-linolenic acid.