Spironemidae

Spironemidae
Systematics
Domain : Eukaryotes (eukaryota) without rank: Hemimastigophora Order : Hemimastigida Family : Spironemidae
Scientific name
Spironemidae
Doflein , 1916

Hemimastix amphikineta (Foissner et al., 1988.)

Spironemidae is a family of organisms in the order Hemimastigida in the group of Hemimastigophora . The family was first described by Franz Theodor Doflein in 1916 .

features

Spironemidae are small to medium-sized, multiple flagellated organisms about 10 to 60 micrometers in length. They are vermiform (worm-shaped) to egg-shaped (ovoid), more or less clearly flattened and at the front with a more or less clear constriction which gives this section a head-like appearance (capitulum). The individual cell nucleus contains a distinct central nuclear body ( nucleolus ) that is retained during division. The flagella (flagella) run in two rows along the cell.

Systematics

The family has four genera:

• Hemimastix
  • Hemimastix amphikineta (Foissner, Blatterer & Foissner, 1988)
  • Hemimastix kukwesjijk (Eglit & Simpson, 2018)
• Stereonema
  • Stereonema geiseri (Foissner & Foissner, 1993)
• Spironema
  • Spironema multiciliatum (Klebs, 1893)
  • Spironema terricola (Foissner & Foissner, 1993)
  • Spironema goodeyi (Foissner & Foissner, 1993)
• Paramastix (Skuja 1948)
  • Paramastix lata (Skuja 1956)
  • Paramastix minuta (Skuja 1964)
  • Paramastix conifera (Skuja 1948)
  • Paramastix truncata (Skuja 1948)

See also

• Systematics of the eukaryotes

literature

• Heinrich Skuja : Taxonomy of the phytoplankton of some lakes in Uppland, Sweden. Symbolae Botanicae Upsalienses 9 (3): 1-399, 39 pls.
• Georg Albrecht Klebs : Flagellate Studies. Part 1. In: Journal of Scientific Zoology , Volume 55, 1893, pp. 265–351
• Georg Albrecht Klebs: About the organization of some flagellate groups and their relationship to algae and infusoria. In: Unters. bot. Inst. Tübingen. Vol. 1. 1888. p. 288.
• Franz Theodor Doflein : Textbook of Protozoic Studies - a presentation of the natural history of the protozoa with special consideration of the parasitic and pathogenic forms. Fischer, Jena 1906. page 637

Individual evidence

1. ↑ ^{a b} Laura Katz, Debashish Bhattacharya: Genomics and Evolution of Microbial Eukaryotes. 2008, Oxford University Press, ISBN 978-0199229055 , p. 26.
2. ^ National Institute for Environmental Studies (NIES), Japan: Systematics of Protozoa, Subphylum Hemimastigophora. ( Online )
3. ↑ Ilse Foissner & Wilhelm Foissner: Revision of the family Spironemidae Doflein (Protista, Hemimastigophora), with description of two new species, Spironema terricola n. Sp. and Stereonema geiseri ng, n. sp. . In: Journal of Eukaryotic Microbiology . 40, No. 4, 1993, pp. 422-438. doi : 10.1111 / j.1550-7408.1993.tb04936.x . ( Full text )
4. ↑ Gordon Lax, Yana Eglit, Laura Eme, Erin M. Bertrand, Andrew J. Roger, Alastair GB Simpson: Hemimastigophora is a novel supra-kingdom-level lineage of eukaryotes . In: Nature . November 14, 2018, ISSN  0028-0836 . doi : 10.1038 / s41586-018-0708-8 .
5. ↑ algaebase.org: Paramastix Skuja, 1948