Abstract
Oxalic acid, the simplest of all dicarboxylic acids, is widely found in all plant species (Franceschi and Nakata, 2005). Two pathways exist for oxalate degradation in plants: degradation via oxalate oxidase and ATP- and CoA-dependent decarboxylation of oxalate through a poorly studied series of enzymatic reactions (Giovanelli and Tobin, 1961). Oxalyl-CoA synthetase, the enzyme that initiates the second degradation pathway was recently identified in Arabidopsis thaliana as a protein encoded by ACYL-ACTIVATING ENZYME3 (AAE3).
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