Granofilosea

Granofilosea
Systematics
Domain : Eukaryotes (eukaryota) without rank: Diaphoreticks without rank: Sar without rank: Rhizaria without rank: Cercozoa without rank: Granofilosea
Scientific name
Granofilosea
Cavalier-Smith & Bass , 2008

The Granofilosea are a group of predominantly amoeboid protists from the Cercozoa tribe .

features

The representatives generally have very fine, branched or unbranched filopodia , which have conspicuous granules ( extrusomes ). Some forms also form radiating axopodia with similar granules. The filopodia have internal microtubules . They lie on the substrate while they are ingested and are semi-immobile in this state. In most species, the individual filopodia do not network with each other, but in some they do: here in particular the filopodia network between different cells and thus form a meroplasmodium . These include the Leucodictyidae and perhaps also Massisteria .

Many representatives have paired centrioles . They have two flagella : either as short stumps, or as short flagella, or they have their own flagellate stage with one or two long flagella.

Your 18S rRNA sequence has a characteristic signature in Helix 49.

Occurrence and way of life

The known species live in fresh and marine water and feed on bacteria.

Systematics

The group was set up in 2008 in order to take in the representatives of the Proteomyxidea remaining as Filosa , most of which were transferred from the Filosa to the Endomyxa .

• Granofilosea
  • Leucodictyida
    • Leucodictyidae , e.g. B. with:
      • Leucodictyon
      • Reticulamoeba
    • Massisteriidae
      • Massisteria
  • Limnofilida
    • Limnofilidae
      • Limnofila
  • Cryptofilida
    • Nanofilidae
      • Nanofila
    • Mesofilidae
      • Mesofila
  • Desmothoracida
    • Clathrulinidae
  • Heliomonadida
    • Heliomorphidae
      • Heliomorpha
    • Acinetactidae
      • Acinetactis
    • Tetradimorphidae
      • Tetradimorpha

Only a small part of the biodiversity of the Granofilosea has so far been described as a species. Analyzes of environmental DNA samples reveal a large number of species as well as higher taxa that have not yet been described or morphologically characterized.

supporting documents

• 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