Massisteria marina

Massisteria marina
Systematics
without rank:	Cercozoa
without rank:	Granofilosea
Order :	Leucodictyida
Family :	Massisteriidae
Genre :	Massisteria
Type :	Massisteria marina
Scientific name of the family
	Massisteriidae
	Cavalier-Smith , 1993
Scientific name of the genus
	Massisteria
	Larsen & Patterson, 1990
Scientific name of the species
	Massisteria marina
	Larsen & Patterson, 1990

Massisteria marina is a heterotrophic flagellate from the Cercozoa group . It is the only species of the genus Massisteria and family Massisteriidae , and belongs to the Cercozoa tribe. It is widespread in the oceans and feeds on bacteria .

features

The cells are flattened and have two short, inactive flagella that lie on the cell surface in the amoeboid stage. The cells form very thin, branched pseudopodia that contain small extrusomes and microtubules.

They have a rather complex cell cycle, which includes amoebas, actively swimming two-flagellated cells and plasmodia. There are no known cysts .

Systematics

Massisteria was formerly part of the Cercomonadida. However, according to molecular genetic studies, it definitely does not belong in this group. They put different works in different groups of the Cercozoa, each with little statistical support. Adl et al. therefore they placed incertae sedis in the Cercozoa. Bass et al. In 2008 they placed Massisteriidae in the class Granofilosea as a separate family .

supporting documents

Alexander P. Mylnikov, Serguei A. Karpov: Review of diversity and taxonomy of cercomonads . Protistology, Vol. 3, 2004, pp. 201-217. ISSN 1680-0826

Individual evidence

↑ 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 .
↑ David Bass, Ema E.-Y.Chao, Sergey Nikolaev, Akinori Yabuki, Ken-ichiro Ishida, Cédric Berney, Ursula Pakzad, Claudia Wylezich, Thomas Cavalier-Smith: Phylogeny of Novel Naked Filose and Reticulose Cercozoa: Granofilosea cl.n . and Proteomyxidea Revised . Protist, 2008 doi : 10.1016 / j.protis.2008.07.002

[1] 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 .

[2] David Bass, Ema E.-Y.Chao, Sergey Nikolaev, Akinori Yabuki, Ken-ichiro Ishida, Cédric Berney, Ursula Pakzad, Claudia Wylezich, Thomas Cavalier-Smith: Phylogeny of Novel Naked Filose and Reticulose Cercozoa: Granofilosea cl.n . and Proteomyxidea Revised . Protist, 2008 doi : 10.1016 / j.protis.2008.07.002