Morphoanatomy and lipidic composition of leaves ofSapindus saponaria L. (Sapindaceae) and Tipuana tipu (Benth.) O. Kunth (Leguminosae)

Abstract

This native species of the lower forest mountains of Tucuman are in danger of extintion. Dorsal-ventral similarities, epidermic cells, stomatic apparatus and symetries of the sheet, have been registered in transversal cuttings. Nervertheless, significant differences at level of the xilematic and sclerenquimatic tissues have been observed. They were greater in Tipuana tipu than in Sapindus saponaria, as following: 52.72-15.83% (dead tissues) and 74.28-84.15% (living tissues) respectively. Higher contents of phospholipid, glycolipid, sterol and triglyceride have been detected in Sapindus saponaria than in Tipuana tipu. However, no percentage changes in the lipid classeshave been noted in these species. At last, as result, we can say that in both species ?the lipid quantity is directly proportional to the percentage of living tissues?.