Glomerulosomes: morphologically distinct nuclear organelles of unknown nature.

The nucleus of some representatives of the genus Pelomyxa (Amoebozoa, Archamoebae, Pelobiontida) contains specific bodies (membrane-less organelles). They may be either embedded in the nucleolar mass or detached from the nucleolus. We termed these nuclear bodies the glomerulosomes for their characteristic ultrastructural appearance.

Karyotypic instability of endoprophase and mitotic cells of Amoeba sp. strain Cont from the "proteus-type" group (Amoebozoa, Euamoebida, Amoebidae).

We performed karyotyping of Amoeba sp. strain Cont. Based on the results of a cytological analysis, we concluded that the chromosome number of Amoeba sp.

Experimental Listeria-Tetrahymena-Amoeba food chain functioning depends on bacterial virulence traits.

Background: Some pathogenic bacteria have been developing as a part of terrestrial and aquatic microbial ecosystems. Bacteria are consumed by bacteriovorous protists which are readily consumed by larger organisms. Being natural predators, protozoa are also an instrument for selection of virulence traits in bacteria.

The Chromatin Extrusion Phenomenon in Amoeba proteus Cell Cycle.

Amoeba proteus is possibly the best known of all unicellular eukaryotes. At the same time, several quintessential issues of its biology, including some aspects of the cell cycle, remain unsolved. Here, we show that this obligate agamic amoebae and related species have a special type of cyclic polyploidy.

Dermamoeba algensis n. sp. (Amoebozoa, Dermamoebidae): an algivorous lobose amoeba with complex cell coat and unusual feeding mode.

The genus Dermamoeba unifies oblong, flattened amoebae of lingulate morphotype, possessing a thick multilayered cell coat. It includes two species, D. granifera and D.