Pelomyxa is a genus of giant flagellar amoebae, usually 500–800 μm but occasionally up to 5 mm in length, found in anaerobic or microaerobic bottom sediments of stagnant freshwater ponds or slow-moving streams.[1]
The genus was created by R. Greeff, in 1874, with Pelomyxa palustris as its type species.[2] In the decades following the erection of Pelomyxa, researchers assigned numerous new species to it. However, in the last quarter of the 20th century, investigators reduced the genus to a single species, Pelomyxa palustris, which was understood to be a highly changeable organism with a complex life cycle, whose various phases had been mistaken for separate species.[3][4] All described species were relegated to the status of synonyms, or moved to the unrelated genus Chaos.
Since 2004, four new Pelomyxa species have been described, and two older species have been redescribed and confirmed as valid members of the genus. These developments have raised new questions about the nature of Pelomyxa palustris itself.[1][5][6][7][8][9]
^ abChistyakova, L. V., and A. O. Frolov. "Light and electron microscopic study of Pelomyxa stagnalis sp. n.(Archamoebae, pelobiontida)." Cell and Tissue Biology 5.1 (2011): 90-97.
^Richard Greeff (December 1874). "Pelomyxa palustris (Pelobius), ein amöberartiger Organismus des süssen Wassers". Archiv für Mikroskopische Anatomie (in German). 10 (1): 51–73. doi:10.1007/BF02960314. ISSN 0176-7364. Wikidata Q54638767.
^J. L. Griffin (1 May 1988). "Fine Structure and Taxonomic Position of the Giant Amoeboid FlagellatePelomyxa palustris1,2". Journal of Protozoology. 35 (2): 300–315. doi:10.1111/J.1550-7408.1988.TB04348.X. ISSN 0022-3921. PMID 3397917. Wikidata Q42519315.
^Brugerolle G. and Patterson D. 2000. Order Pelobiontida Page 1976. In: An illustrated guide to the protozoa, second edition (Eds. Lee J., Leedale G. and Bradbury P.). Allen press inc., Lawrence, USA. pp. 1097-1103.
^Alexander O Frolov; Ludmila V. Chystjakova; Andrew V. Goodkov (2004). "A new pelobiont protist Pelomyxa corona sp. n. (Peloflagellatea, Pelobiontida)" (PDF). Protistology. 3 (4): 233–241. ISSN 1680-0826. Wikidata Q78566738.
^Frolov, Alexander O., Ludmila V. Chystjakova, and Andrew V. Goodkov. "Light and electron microscopic study of Pelomyxa binucleata (Gruber, 1884)(Peloflagellatea, Pelo biontida)." Protistology 4 (2005): 57-73.
^Frolov, A., et al. "Structure and Development of Pelomyxa gruberi sp. n.(Peloflagellatea, Pelobiontida)." Protistology 4 (2006): 227-244.
^Frolov, A. O., et al. "Light and electron microscopic investigation of Pelomyxa prima (Gruber, 1884)(Peloflagellatea, Pelobiontida)." Tsitologiia 47.1 (2005): 89-98.
^Frolov, A. O., L. V. Chistiakova, and M. N. Malysheva. "Light-and electron-microscopical study of Pelomyxa flava sp. n.(archamoebae, pelobiontida)]." Tsitologiia 52.9 (2010): 776.
Pelomyxa is a genus of giant flagellar amoebae, usually 500–800 μm but occasionally up to 5 mm in length, found in anaerobic or microaerobic bottom sediments...
are microscopic, but some species, such as the so-called "giant amoebae" Pelomyxa palustris and Chaos carolinense, can be large enough to see with the naked...
flagella. Most have a single nucleus and flagellum, but the giant amoeba Pelomyxa has many of each. Archamoebae are a diverse group of amoebae. Many have...
eukaryotes, such as the metamonads Giardia and Trichomonas, and the amoebozoan Pelomyxa, appear to lack mitochondria, but all contain mitochondrion-derived organelles...
includes many of the best-known amoeboid organisms, such as Chaos, Entamoeba, Pelomyxa and the genus Amoeba itself. Species of Amoebozoa may be either shelled...
primitively lacked mitochondria. Like Margulis and others before (see Pelomyxa), Cavalier-Smith argued that the initial ancestor of eukaryotes emerged...
small subunit ribosomal RNA gene found in amitochondriate amoeboflagellate Pelomyxa palustris: its rRNA predicted secondary structure and phylogenetic implication"...
excludes some organisms traditionally regarded as "lobosean", such as Pelomyxa and Entamoeba (Amoebozoa) and some Heterolobosea (Excavata). The subphylum...
ago as the split of fungi and animals. Entamoeba histolytica trophozoite Pelomyxa palustris Badhamia utricularis (Myxogastria: Physarales) Cavalier-Smith...
small subunit ribosomal RNA gene found in amitochondriate amoeboflagellate Pelomyxa palustris: its rRNA predicted secondary structure and phylogenetic implication"...
colour in the larvae of lepidoptera, while the other was on an amoeba, Pelomyxa palustris. Veley was a scientist and the director of the Baddow Brewery...
Effect of Weightlessness on Amoeba, Pelomyxa Carolinensis Effects of Weightlessness on the Nutrition and Growth of Pelomyxa carolinensis Biosatellite 1 Biosatellite...
Growth+Induction of Lysogenic Bacteria Effects of Weightlessness on Amoeba, Pelomyxa Carolinensis Wikimedia Commons has media related to Biosatellite 1. "Biosatellite...
Thecamoebae are mononucleate, and in other binucleate amoebae such as Pelomyxa binucleata, the nuclei are not closely apposed. Each nucleus is between...
formerly erected by Dangeard in 1910 based on parasitized individuals of Pelomyxa vorax; he named the species after Penard. Amoebophilus penardii Dangeard...
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