In this study,the workers have histochemically localized
papillae as the site of storage for 2-acetyl-1-pyrroline in Pandanus amaryllifolius. However,
its site of synthesis is unknown. It may be either the epidermal cell or the papilla
itself. In the higher plants, aroma compounds in leaves are stored in vacuoles and epidermal
outgrowths like papillae, glandular hairs and trichomes.