Studies on a Macronuclear Endosymbiont of Spirostomum ambiguum. II. Ultrastructural Comparison of the in situ and the Cultivated Endosymbiont

Studies on a Macronuclear Endosymbiont of Spirostomum ambiguum. II. Ultrastructural Comparison of the in situ and the Cultivated Endosymbiont

Studies of the morphology of the endosymbiont reveal similar characteristics in either fixed specimens of Spirostomum ambiguum or material cultivated in vitro: lack of a definitive cell wall, presence of two triple-layered membranes separated by a periplasmic space serving as cell boundaries, and th...

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Veröffentlicht in:Transactions of the American Microscopical Society 1976-10, Vol.95 (4), p.565-568
Hauptverfasser: Harrison, Daniel N., Dorsey, Charles H., Brown, Charles A.
Format: Artikel
Sprache:eng
Schlagworte:
Bacteria - ultrastructure
Cell Membrane - ultrastructure
Cell Nucleus - microbiology
Cell walls
Ciliophora - microbiology
Cultured cells
Electron micrographs
Endosymbionts
Macronucleus
Medical research
Microorganisms
Nuclear membrane
Periplasm
Phosphates
Symbiosis
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Zusammenfassung:Studies of the morphology of the endosymbiont reveal similar characteristics in either fixed specimens of Spirostomum ambiguum or material cultivated in vitro: lack of a definitive cell wall, presence of two triple-layered membranes separated by a periplasmic space serving as cell boundaries, and the presence of membrane-bound vesicles. Structural evidence concerning the filterability and motility of the isolated endosymbiont is discussed.
ISSN:0003-0023
DOI:10.2307/3225379