Nucleohelea

Nucleohelea
	Wagnerella borealis
Systematics
Domain :	Eukaryotes (eukaryota)
without rank:	Diaphoreticks
without rank:	Sar
without rank:	Rhizaria
without rank:	Cercozoa
without rank:	Nucleohelea
Scientific name
	Nucleohelea
	Cavalier-Smith , 1993

The nucleohelea are a group of heterotrophic protists that were systematically regarded as sun animals for a long time, but are now part of the Cercozoa .

features

The nucleohelea are unicellular amoeboid organisms. Their characteristic features are an amorphous centrosome that lies against the nuclear envelope (axoplast); Mitochondria with tubular cristae; their axopods ( pseudopodia ) are reinforced by microtubules .

Systematics

Because of their morphology, the representatives of the nucleohelea were placed among the sun animals earlier . However, molecular genetic studies showed that they belong to the Cercozoa . Today they form part of the core Cercozoa .

The nucleohelea comprise two groups:

Clathrulinidae (= Desmothoracida)
Gymnosphaerida

There are 160 to 180 described species, the total number is estimated at around 200.

supporting documents

Sina M. Adl et al .: The New Higher Level Classification of Eukaryotes with Emphasis on the Taxonomy of Protists. The Journal of Eukaryotic Microbiology, Vol. 52, 2005, pp. 399-451. doi : 10.1111 / j.1550-7408.2005.00053.x .

Individual evidence

^ Jan Pawlowski: The twilight of Sarcodina: a molecular perspective on the polyphyletic origin of amoeboid protists . Protistology, Vol. 5, 2008, pp. 281-302. (pdf, 570 kB)
↑ Adl, Sina M., Leander, Brian S., Simpson, Alastair GB, Archibald, John M., Anderson, O. Roger., Bass, David, Bowser, Samuel S., Brugerolle, Guy, Farmer, Mark A. , Karpov, Sergey, Kolisko, Martin, Lane, Christopher E., Lodge, Deborah J., Mann, David G., Meisterfeld, Ralf, Mendoza, Leonel, Moestrup, Øjvind, Mozley-Standridge, Sharon E., Smirnov, Alexey V. and Spiegel, Frederick: Diversity, Nomenclature, and Taxonomy of Protists. Systematic Biology, Vol. 56, 2007, pp. 684-689.

[Pawlowski-1] Jan Pawlowski: The twilight of Sarcodina: a molecular perspective on the polyphyletic origin of amoeboid protists . Protistology, Vol. 5, 2008, pp. 281-302. (pdf, 570 kB)

[2] Adl, Sina M., Leander, Brian S., Simpson, Alastair GB, Archibald, John M., Anderson, O. Roger., Bass, David, Bowser, Samuel S., Brugerolle, Guy, Farmer, Mark A. , Karpov, Sergey, Kolisko, Martin, Lane, Christopher E., Lodge, Deborah J., Mann, David G., Meisterfeld, Ralf, Mendoza, Leonel, Moestrup, Øjvind, Mozley-Standridge, Sharon E., Smirnov, Alexey V. and Spiegel, Frederick: Diversity, Nomenclature, and Taxonomy of Protists. Systematic Biology, Vol. 56, 2007, pp. 684-689.