title: Evidence for a new type of endosymbiotic organization in a population of the ciliate Mesodinium rubrum from British Columbia.
mesh_terms: D002736:Chloroplasts / Q000648:ultrastructure; D008928:Mitochondria / Q000648:ultrastructure; D010839:Phytoplankton / Q000502:physiology / Q000648:ultrastructure*; D010933:Plankton / Q000648:ultrastructure*; D013559:Symbiosis