Diplonema (excavate)

Diplonema is a genus of free living organisms in the Euglenozoa. They are distinguished from Rhynchopus in Class Diplonemea by the absence of a fully flagellate dispersive stage.

Diplonema
Scanning electron micrograph of Diplonema papillatum
Scientific classification
Domain:
Eukaryota
(unranked):
Excavata
Phylum:
Euglenozoa
Class:
Diplonemea
Order:
Diplonemida
Family:
Diplonemidae
Genus:
Diplonema

Griessmann 1913
Type species
Diplonema breviciliata
Griessman 1913
Species
  • D. aggregata Tashyreva et al. 2018
  • D. ambulator Larsen & Patterson 1990
  • D. breviciliata Griessman 1913
  • D. japonica Tashyreva et al. 2018
  • D. nigricans (Schuster, Goldstein & Hershenow 1968) Triemer & Ott 1990
  • D. papillatum (Porter 1973) Triemer & Ott 1990
  • D. metabolicum Larsen & Patterson1990
Synonyms
  • Isonema Schuster, Goldstein & Hershenow 1968 non Brown non Cassini 1817 non Maas 1909 non Meek & Worthen 1865 non Hall 1891
  • Lackeymonas Skvortzov 1969
  • Teixeiramonas Skvortzov 1969
  • ?Flagellamonas Skvortzov 1969
  • ?Kolbeana Skvortzov 1966 ex Skvortzov 1972
  • ?Lowymonas Skvortzov 1969
  • ?Milaneziamonas Skvortzov 1969
  • ?Spira Skvortzov 1969 non Bastian 1865 non Brown 1844

Characteristics

Diplonema feature two short flagella of equal length and two subapical openings. Most are free living, but there have been reported cases of infection in clams and sudden decomposition of aquarium plants. It was described initially in 1914 and later rediscovered in the 60s and called Isonema, wrongly classified among euglenids.[1][2]

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References
  1. W. Marande, J. Lukeš y G. Burger, Unique Mitochondrial Genome Structure in Diplonemids, the Sister Group of Kinetoplastids, Eukaryot Cell. 2005 June; 4(6): 1137–1146.
  2. Brands, S.J. (comp.) 1989-2007. The Taxonomicon. Universal Taxonomic Services, Amsterdam, The Netherlands. , Fecha de acceso: 7 de Febrero del 2016.


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