title: Three different types of mate-killer (mu) particle in Paramecium aurelia (syngen 1).
mesh_terms: D003593:Cytoplasm; D005796:Genes; D066298:In Vitro Techniques; D008854:Microscopy, Electron; D008858:Microscopy, Phase-Contrast; D010247:Paramecium / Q000166:cytology*; D013194:Staining and Labeling; D013559:Symbiosis