In plants, L-ascorbic acid (Shigeoka et al., 2002) metabolism is correlated with oxidative stress defense, while AsA accumulation in plant tissues and organs is altered by physiological phenomena such as senescence, cell expansion development and, various biotic and abiotic stimulations (Davey et al., 2006, 2000). Most of the biological roles of AsA derive from its great capacity to act as a reducing agent. Indeed, the primary function of AsA is to detoxify hydrogen peroxide H2O2 produced by metabolism during photo-synthesis and especially in stress conditions (Smirnoff, 2011).