Fig. 8.

Sterol lipid content in Arabidopsis leaves and roots during phosphate deprivation measured by Q-TOF MS/MS. Lipids were extracted from Arabidopsis leaves of WT and pho1 mutant plants grown on soil and from leaves and roots of WT plants grown on synthetic medium with or without phosphate. The bars show sterol lipid content (means ± SD of five measurements). Data were confirmed by a second independent biological experiment. Values significantly different from those of the WT or from the phosphate-containing control are indicated by an asterisk (according to Student's t test; P < 0.02).