Cyclidium porcatum n. sp.: a Free-living anaerobic scuticociliate containing a stable complex of hydrogenosomes, eubacteria and archaeobacteria

Authors: Clarke, K.J., Finlay, B.J., Esteban, G., Guhl, B.E. and Embley, T.M.

Journal: European Journal of Protistology

Volume: 29

Issue: 2

Pages: 262-270

ISSN: 0932-4739

DOI: 10.1016/S0932-4739(11)80281-6

Abstract:

A new ciliate species (Cyclidium porcatum) is the first freshwater anaerobic scuticociliate to be cultured and described. It contains a unique tripartite structure consisting of hydrogenosomes (confirmed by cytochemical staining for hydrogenase), interspersed with methanogens (confirmed by auto fluorescence and in situ hybridisation with an archaeobacterial 16S rRNA-specific probe) and unidentified eubacteria (confirmed with a eubacterial 16S rRNA-specific probe). This complex structure is stable and persistent, indicating that it is an anaerobic symbiotic consortium incorporating three functional partners. © 1993, Gustav Fischer Verlag · Stuttgart · Jena · New York. All rights reserved.

Source: Scopus