Studies on the Macronuclear Endosymbiont of 'Spirostomum ambiguum'. I. Isolation of a Microorganism from the Macronucleus.

摘要

Microorganisms which can be cultivated in vitro on common bacteriological media and can be subcultured through several passage generations have been isolated from the disrupted, but not intact, macronuclear lobes of Spirostomum ambiguum. Serological evidence gives further support to the opinion that these microorganisms represent the so-called endosymbionts of the ciliate. Preliminary characterization of these microorganisms of uncertain taxonomic status is presented. (Author)