The role of energy in the disease resistance loss of fruit and vegetable has drawn great attention. Recent studies have shown that disease development on harvested fruit and vegetable may be attributed to the short supply of energy or low energy production . For example, ATP level and energy charge in litchi pericarp decreased gradually with the fruit’s senescence and disease progress .ATP content in pericarp of litchi fruit infected with Peronophythora litchii (a primary pathogen) increased as disease appeared, reaching its highest value at the initial disease stage