PozNews - HIV News - STD News: Saccamoeba lacustris, sp. nov. (Amoebozoa: Lobosea: Hartmannellidae), a new lobose amoeba, parasitized by the novel chlamydia 'Candidatus Metachlamydia lacustris' (Chlamydiae: Parachlamydiaceae).

Saccamoeba lacustris, sp. nov. (Amoebozoa: Lobosea: Hartmannellidae), a new
lobose amoeba, parasitized by the novel chlamydia 'Candidatus Metachlamydia
lacustris' (Chlamydiae: Parachlamydiaceae).
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MedWorm on 25 March, 2010 03:00:00
 
Authors: Corsaro D, Michel R, Walochnik J, Müller KD, Greub G     An amoeba
isolated from an aquatic biotope, identified morphologically as Saccamoeba
limax, was found harbouring mutualistic rod-shaped gram-negative bacteria.
During their cultivation on agar plates, a coinfection also by lysis-inducing
chlamydia-like organisms was found in some subpopulations of that amoeba. .Here
we provide a molecular-based identification of both the amoeba host and the two
bacterial endosymbionts. Analysis of the 18S rRNA gene revealed that this strain
is the sister-group to Glaeseria, for which we proposed the name Saccamoeba
lacustris. The rod-shaped endosymbiont was identified as a member of Variovorax
paradoxus group (Comamonadaceae, Beta-Proteobacteria). No growth on
bacteriological agars was ...