Parvularia atlantis is a filopodiated amoeba which was isolated from a lake inAtlanta and deposited in the American Type Culture Collection (ATCC) under the nameNuclearia sp. ATCC 50694 on 1997 byTK Sawyer. It was classified under the genusNuclearia and morphologically resembles toNuclearia species, although it is smaller (the diameter of the cell body measures approximately 4 μm compared to Nuclearia species, which range between 9-60 μm). Later it was determined that itphylogenetically belongs to a new nucleariid lineage.,[1] distantly related toNuclearia andFonticula genera – the other two previously described nucleariid genera.
Thus,Parvularia atlantis emerged as a new genus and a new species at the onset ofHolomycota, which contain a set of phylogenetic and morphological characteristics that make this species unique.P. atlantis feeds on rod-shaped bacteria and present uni- or bi- nucleated cells. During its life cycle,P. atlantis can form spherical cystic cells which contain an embedded extracellular coat.P. atlantis is not the first case in which afilopodiated amoeba was misassigned to the Nuclearia genera. The amoebaCapsaspora owczarzaki was previously described as well as a Nuclearia,[2] until phylogenetic approaches placedCapsaspora outside Holomycota, withinHolozoans.[3][4][5][6][7]
Its transcriptomic data is already available.[8][9][10]
^Owczarzak, A.; Stibbs, H. H.; Bayne, C. J. (1980-01-01). "The destruction of Schistosoma mansoni mother sporocysts in vitro by amoebae isolated from Biomphalaria glabrata: an ultrastructural study".Journal of Invertebrate Pathology.35 (1):26–33.doi:10.1016/0022-2011(80)90079-8.PMID7365267.
^Hertel, Lynn A; Bayne, Christopher J; Loker, Eric S (2002-08-01). "The symbiont Capsaspora owczarzaki, nov. gen. nov. sp., isolated from three strains of the pulmonate snail Biomphalaria glabrata is related to members of the Mesomycetozoea".International Journal for Parasitology.32 (9):1183–1191.doi:10.1016/S0020-7519(02)00066-8.PMID12117501.
^Ruiz-Trillo, Iňaki; Lane, Christopher E.; Archibald, John M.; Roger, Andrew J. (2006-09-01). "Insights into the Evolutionary Origin and Genome Architecture of the Unicellular Opisthokonts Capsaspora owczarzaki and Sphaeroforma arctica".Journal of Eukaryotic Microbiology.53 (5):379–384.doi:10.1111/j.1550-7408.2006.00118.x.ISSN1550-7408.PMID16968456.S2CID24862220.
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