Peroxisomal citrate synthase required for the fatty acid respiration in seedlings, citrate being exported from peroxisomes into mitochondria during respiration of triacylglycerol (TAG). Indeed, complete respiration requires the transfer of carbon in the form of citrate from the peroxisome to the mitochondria. acetyl-CoA + H2O + oxaloacetate = citrate + CoA + H(+) Carbohydrate metabolism; tricarboxylic acid cycle; isocitrate from oxaloacetate: step 1/2. Widely expressed. Expressed throughout the shoot. Expressed in flower, silique, stem, cauline leaf, young leaf, mature leaf and senescent leaf. Expressed throughout seedling growth. Citrate synthase is found in nearly all cells capable of oxidative metabolism. Belongs to the citrate synthase family.