title: The classes of endosymbiont of Paramecium aurelia.
mesh_terms: D000818:Animals; D001419:Bacteria / Q000378:metabolism*; D002462:Cell Membrane; D002467:Cell Nucleus; D003593:Cytoplasm; D004721:Endoplasmic Reticulum; D005407:Flagella; D008854:Microscopy, Electron; D008858:Microscopy, Phase-Contrast; D009154:Mutation; D010247:Paramecium / Q000378:metabolism*; D013045:Species Specificity; D013559:Symbiosis; D014118:Toxins, Biological / Q000096:biosynthesis
chemical_list: D014118:Toxins, Biological