Mitochondrial phosphatidylethanolamine level modulates Cyt c oxidase activity to maintain respiration capacity in Arabidopsis thaliana rosette leaves.

Phosphatidylethanolamine is the predominant phospholipid of the mitochondrial inner membrane. In Arabidopsis, pect1-4 mutants exhibit reduced cellular phosphatidylethanolamine levels owing to reduced CTP:phosphorylethanolamine cytidylyltransferase (PECT; EC 2.7.