title: [Cycle, ultrastructure of a Catenaria (Phycomycetes Blastocladiales) parasite of Crustacea Cyclopoida].
abstract: The ultrastructural modifications during the life cycle of a Phycomycetes parasite of Cyclops are studied. The cytoplasmic sporangium cleavage is brought about by the fusion of flagellar sheaths and cleavage vesicles. The uniflagellates zoospores are characterized by a nuclear-nuclear cap cluster, a large side-body (single mitochondrion, lipid bodies, granular material) and gamma particles. The fungus belongs to the genus Catenaria and probably to the species C. anguillulae. The ultrastructure of this Catenaria shows that this genus is closely related to Blastocladiales.
mesh_terms: D000818:Animals; D003445:Crustacea / Q000382:microbiology*; D005658:Fungi / Q000254:growth & development* / Q000648:ultrastructure; D009024:Morphogenesis; D013172:Spores, Fungal / Q000254:growth & development / Q000648:ultrastructure
vernacular_title: Cycle, ultrastructure d'une Catenaria (Phycomycètes, Blastocladiales) parasite de Crustacés Cyclopoïdes.