THE ULTRASTRUCTURE OF LEISHMANIA GERBILLI
砂鼠利什曼原虫(Leishmania gerbilli)的亚显微结构

The fine structure of the culturing promastigote of Leishmania gerbilli was studied. This organism was isolated by Professor Wang Jie et al., from the rodent Rhombomys opimus livingin the northwestern part of China. The basic structure of it resembles that described for other trypanosomastids. However, the endoplasmic reticulum and the Golgi apparatus of the cells have not been found yet. Instead, one or two multilamellar structures posterior to the nucleus have been seen in some slender cells. These structures are concentric circles or ellipses consisted of a serial membranes. The function of them is unkown. Only one large crista-rich mitochondrion was observed. The mitochondrion, with branches going to both anterior and posterior parts of the organism, possesses a wide cavity in the midle part of the cell. The kinetoplast always lies in the mitochondrial cavity near the base of the flagellum. The subpellicular microtubules are arranged about 50nm apart. In addition, we found that the kinetoplast would become into a circular structure when cells were expanded.