title: [Endosymbiotic bacteria and their relationship with chlorella in the ciliate Climacostomum virens].
abstract: Structure of cytoplasmic bacterial symbionts of chlorella-free ciliate Climacostomum virens has been investigated. It is shown that ciliates are not able to support simultaneously growth and duplication of two different symbionts--bacteria and chlorella. Cells of C. virens lost bacterial symbionts after an artificial infection with chlorella by microinjection. Competitive relationships between two endopionts are discussed.
authors.affiliation: Institute of Cytology RAS, Biological Research Institute, St. Petersburg State University, St. Petersburg.
authors.forename: B P
authors.initials: BP
authors.lastname: Karadzhian
authors.forename: A E
authors.initials: AE
authors.lastname: Vishniakov
mesh_terms: D000818:Animals; D002708:Chlorella / Q000254:growth & development* / Q000648:ultrastructure; D016798:Ciliophora / Q000382:microbiology* / Q000648:ultrastructure; D002999:Clone Cells; D008854:Microscopy, Electron; D010802:Phylogeny; D020560:Proteobacteria / Q000254:growth & development* / Q000648:ultrastructure; D013559:Symbiosis; D014617:Vacuoles / Q000648:ultrastructure