using histochemical techniques , changes in the localization of different reserve substances ( e.g . pectic compounds , starch , polysaccharides , proteins , nucleic acids , ascorbic acid ) and enzymes ( acid phosphatase , alkaline phosphatase , atp-ase , 5-nucleotidase , esterase , phosphorylase , succinate dehydrogenase , cytochrome oxidase and lipase ) have been studied in the young and fertilized ovules of zephyranthes sp . and lagenaria sp . etc .
C0014894
esterase
C0023764
lipase