Читать книгу Parasitology - Alan Gunn - Страница 59

Most members of the Diplomonadida are parasites, the best known of which belong to the genus Giardia. A characteristic feature of diplomonads is the presence of two haploid nuclei each of which is associated with four basal bodies and flagellae. They lack Golgi apparatus and mitochondria, but organelles called mitosomes, that probably represent relict mitochondria, exist in some species. Mitosomes lack DNA and do not undertake oxidative phosphorylation. They probably manufacture iron–sulphur proteins that undertake essential tasks in the cytosol (Tachezy 2019). In common with many other protozoa, the taxonomic position of the diplomonads is under constant revision.