PMID: 7581321Sep 1, 1995Paper

Transmissibility of bacterial endosymbionts between isolates of Acanthamoeba spp

The Journal of Eukaryotic Microbiology
R K Gautom, T R Fritsche

Abstract

Experimental transmission of two bacterial endosymbionts to symbiont-free isolates of Acanthamoeba spp. was studied to determine specificity of the host-symbiont relationship. Both symbionts originated from amoebic isolates displaying an identical mitochondrial DNA EcoRI fingerprint (group AcUW II). Symbioses were readily established in one amoebic isolate which displayed a homologous mtDNA fingerprint (group AcUW II). Exposure of a heterologous amoebic isolate (group AcUW IV) to the two symbionts resulted in either cell death or encystation without the establishment of symbioses. While symbioses were established with an amoebic isolate from a second heterologous group (AcUWI), a unique membranous sheath appeared and persisted around one of the symbionts which did not exist in the original host. An isolate representing a third heterologous amoebic group (AcUW VI) was variable in its susceptibility with one symbiont unable to infect the host and the other becoming established only after an initial reaction in which trophozoites rounded-up and floated off the substrate. These studies suggest that a specific recognition system exists between particular isolates of Acanthamoeba and their symbionts, and that the appearance of a kill...Continue Reading

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Citations

Oct 19, 2001·Research in Microbiology·J Winiecka-Krusnell, E Linder
Aug 26, 1998·Australian and New Zealand Journal of Ophthalmology·D MurdochD Parr
Apr 15, 2003·Clinical Microbiology Reviews·Francine Marciano-Cabral, Guy Cabral
Oct 17, 2015·Environmental Microbiology Reports·Vincent DelafontYann Héchard
Nov 13, 2004·The Journal of Eukaryotic Microbiology·Matthias Horn, Michael Wagner
Jun 27, 2006·Molecular Microbiology·Ilka HaferkampH Ekkehard Neuhaus
Dec 25, 2010·The Journal of Eukaryotic Microbiology·Kathleen C GlaserRobert E Molestina
Sep 17, 2005·International Journal of Systematic and Evolutionary Microbiology·Astrid CollingroMatthias Horn
Jan 1, 1997·Applied and Environmental Microbiology·R AmannR Michel

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