Flamella
| Flamella | |
|---|---|
| Flamella fuviatilis | |
| Scientific classification | |
| Domain: | Eukaryota |
| Phylum: | Amoebozoa |
| Class: | Variosea |
| Family: | Flamellidae |
| Genus: | Flamella Schaeffer, 1926 |
| Type species | |
| Flamella magnifica Schaeffer, 1926
| |
Flamella is a genus of fan-shaped amoebae belonging to the class Variosea within the Amoebozoa. It was described in 1926 by Asa Arthur Schaeffer.
Description
Flamella is a genus of naked flattened amoebae[1] that appear fan-shaped, semicircular or diadem-shaped during locomotion. They develop a wide forward-facing hyaloplasm, from which blunt finger-shaped pseudopodia are produced, as well as trailing filaments facing backwards. Species of Flamella may form cysts that are double-walled and present unique structures, namely ostioles and operculae (crescent-shaped), in the cross sections of walls. Its species are similar to each other, but can be distinguished by the thickness and features of the cyst wall.[2]
Taxonomy
Flamella was described in 1926 by Asa Arthur Schaeffer along with its type and, initially, only species F. magnifica.[1] Schaeffer noted a unique irregular morphology, extremely variable during locomotion, and initially classified it in the family Hyalodiscidae (Placopodidae) together with Hyalodiscus[3] (Placopus), a genus of vampyrellid amoebae with slender filopodia.[4]
Molecular phylogenetic analyses eventually revealed that it belongs to the class Variosea within the Amoebozoa.[5]
Flamella contains the following species:
- F. aegyptia Michel & Smirnov, 1999
- F. arnhemensis Kudryavtsev et al. 2009
- F. balnearia Kudryavtsev et al. 2009
- F. citrensis Bovee 1956
- F. fluviatilis Kudryavtsev et al. 2009
- F. lacustris Michel & Smirnov, 1999
- F. magnifica Schaeffer, 1926 — the type species.
- F. piscinae Brown & Walthall in Walthall et al. 2016[6]
- F. tiara Fishbeck & Bovee 1993
References
- ^ a b Michel, Rolf; Smirnov, Alexey V. (1999). "The genus Flamella Schaeffer, 1926 (lobosea, gymnamoebia), with description of two new species". European Journal of Protistology. 35 (4): 403–410. doi:10.1016/S0932-4739(99)80049-2.
- ^ Kudryavtsev, Alexander; Wylezich, Claudia; Schlegel, Martin; Walochnik, Julia; Michel, Rolf (2009). "Ultrastructure, SSU rRNA Gene Sequences and Phylogenetic Relationships of Flamella Schaeffer, 1926 (Amoebozoa), with Description of Three New Species". Protist. 160 (1): 21–40. doi:10.1016/j.protis.2008.09.004.
- ^ Schaeffer, Asa Arthur (1926). Taxonomy of the amebas with descriptions of thirty-nine new marine and freshwater species. Papers from the Department of Marine Biology of the Carnegie Institute of Washington. Vol. 24. Washington: Carnegie Institute of Washington. pp. 1–116.
- ^ Hess, Sebastian; Suthaus, Andreas (2022). "The Vampyrellid Amoebae (Vampyrellida, Rhizaria)". Protist. 173 (1) 125854. doi:10.1016/j.protis.2021.125854. PMID 35091168.
- ^ Adl, Sina M.; Bass, David; Lane, Christopher E.; Lukeš, Julius; Schoch, Conrad L.; et al. (26 September 2018). "Revisions to the Classification, Nomenclature, and Diversity of Eukaryotes". The Journal of Eukaryotic Microbiology. 66 (1): 4–119. doi:10.1111/JEU.12691. PMC 6492006. PMID 30257078.
- ^ Walthall, Austin C.; Tice, Alexander K.; Brown, Matthew W. (25 August 2016). "A New Species of Flamella (Amoebozoa, Variosea, Gracilipodida) Isolated from a Freshwater Pool in Southern Mississippi, USA". Acta Protozoologica. 55 (2): 111–117. doi:10.4467/16890027ap.16.010.4945.