The analysis of proteins isolated from whole seedling homogenate allowed insight into the abundance of lipid droplet proteins in different lines and time points. In order to gain more detailed insight into the protein composition of LDs of the different mutant lines and to increase the chances for the detection of post-translationally modified peptides, LD-enriched fractions were analyzed in a second proteomic approach. The LD fraction was isolated from homogenized seedlings of qrt PUX10, qrt pux10-1, C#1, and C#2 at 2 dai.