[An experimental study of the interrelations of Leishmania (Sauroleishmania) gymnodactyli and the sandfly Sergentomyia arpaklensis (Diptera: Phlebotominae)].

Morphology, development and behaviour of Leishmania gymnodactyli in the sand fly Sergentomyia arpaklensis at different stages of blood digestion have been studied. It has been shown that leishmaniae reproduce readily and develop normally inside the food ball of sandflies. The dense peritrophic membrane is not destroyed at the end of digestion and is an insuperable obstacle for leishmaniae.

[Taxonomic problems of the Leishmania of reptiles].

The history of description and state of knowledge of 17 species and 40 not identified to species forms of Leishmania, described from reptiles of the world, are traced. It is suggested to retain 10 species and 3 forms of Leishmania in the list of the subgenus Sauroleishmania as follows: L. (S) tarentolae, L.

[Molecular mechanisms of adaptation to hyperthermia in higher organisms. III. Induction of heat-shock proteins in two Leishmania species].

The heat-shock proteins (hsp) induction in two species of Leishmania have been investigated. The species studied are parasites of two species of lizards (Lymnodactylus caspins and Agama caucasica) differing by temperature of correspondent ecological niche. Our results show that Leishmania species restricted to high-temperature host (Agama) is capable to synthesize its proteins at extreme temperatures (38, 40 degrees C) with greater intensity.

[Specificity of the interrelations of Leishmania and host cells in vitro].

Experiments on cross infection of peritoneal macrophages of mice with Leishmania of reptiles L. gymnodactyli and free cells of abdominal cavity of caucasian Agama (some part of which is composed by fibroblasts) with Leishmania of mammals L. major and L.