changes in the localization of different reserve substances ( e.g . polysaccharides , proteins , nucleic acids and lipids ) and enzymes ( acid phosphatase , esterase , lipase , phosphorylase , succinate dehydrogenase , cytochrome oxidase and peroxidase ) have been studied in unfertilized and fertilized ovules .
C0014894
esterase
C0023764
lipase