ACETYL-COA CARBOXYLASE EXERTS STRONG FLUX CONTROL OVER LIPID-SYNTHESIS IN PLANTS

The importance of acetyl-CoA carboxylase in regulation of lipid synthe sis for barley and maize leaves has been quantitatively assessed using , as specific inhibitors, the herbicides fluazifop and sethoxydim. App arent flux control coefficients of about 0.58 and 0.52 were determined for acetyl-CoA carboxylase in barley and maize leaves, respectively. These results show that acetyl-CoA carboxylase is the major flux contr olling enzyme for light-stimulated lipid synthesis in these tissues.