Nucleophaga

Nucleophaga is a genus of eukaryotic microorganisms that are internal parasites of amoeba, flagellates, and ciliates.[1] [2]

Nucleophaga
Endolimax nana parasitized by Nucleophaga hypertrophica
Scientific classification
Domain:
Eukaryota
Kingdom:
Fungi
Division:
Cryptomycota
Genus:
Nucleophaga

Dangeard 1895
Type species
Nucleophaga amoebae
Dangeard 1895

Morphology and life cycle

Nucleophaga grows within the nucleus of its host cell.[3] Its spores are ingested by the host and migrate to the nucleus. Once in the nucleus, the spores germinate giving rise to naked plasmodia in contact with the host's karyoplasm. It develops pseudopodia-like projections that may be involved in osmotrophy or phagocytosis. The Nucleophaga cells continue to enlarge until a cell wall replaces the projections and the Nucleophaga cytoplasm is divided into spores.[4]

Taxonomy

Described by Dangeard in 1895, Nucleophaga was placed in Olpidiaceae, Chytridiales.[3][1] Molecular phylogenetic studies have placed some members in the Cryptomycota/Rozellomycota.[4][5]

Species

As according to a taxonomic summary.[1]

  • Nucleophaga amoebae Dangeard 1895
  • Nucleophaga hypertrophica Epstein 1922
  • Nucleophaga intestinalis Brug 1926
  • Nucleophaga peranemae Hollande & Balsac 1941
  • Nucleophaga ranarum Lavier 1935
  • Nucleophaga terricolae Corsaro et al. 2006

References
  1. Blackwell, Will H.; Letcher, Peter M.; Powell, Martha J. (2019). "Review of Nucleophaga (a primitive, 'cryptomycotan' genus): Summary of named and unnamed species, with discussion of contemporary and historical observations". Phytologia. 101: 1–18.
  2. Brumpt, E.; Lavier, G. (2017). "Sur une Nucleophaga parasite d'Endolimax nana". Annales de Parasitologie Humaine et Comparée. 13 (5): 439–444. doi:10.1051/parasite/1935135439. ISSN 0003-4150. open access
  3. Sparrow F.K. (1060). Aquatic Phycomycetes (second ed.). The University of Michigan Press.
  4. Corsaro, Daniele; Walochnik, Julia; Venditti, Danielle; Muller, Karl-Dieter; Hauroder, Barbel; Michel, Rolf (2014). "Rediscovery of Nucleophage amoebae, a novel member of the Rozellomycota". Parasitology Research. 113: 4491–4498.
  5. Corsaro, Daniele; Michel, Rolf; Walochnik, Julia; Venditti, Danielle; Muller, Karl-Dieter; Hauroder, Barbel; Wylezich, Claudia (2016). "Molecular identification of Nucelophaga terricolae sp. nov. (Rozellomycota), and new insights on the origin of the Microsporidia". Parasitology Research. 115: 303–3011.
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