title: Preconjugant interaction in ciliates: a cell recognition problem.
mesh_terms: D000818:Animals; D000917:Antibody Formation; D002450:Cell Communication; D002923:Cilia / Q000276:immunology; D016798:Ciliophora / Q000276:immunology*; D005246:Feedback; D007111:Immunity, Cellular; D010247:Paramecium; D014176:Protein Biosynthesis; D011975:Receptors, Mitogen; D012098:Reproduction; D012726:Sexual Behavior, Animal; D013997:Time Factors
chemical_list: D011975:Receptors, Mitogen