Difflugia

Difflugia
	Difflugia gramen
Systematics
without rank:	Amorphea
without rank:	Amoebozoa
without rank:	Tubulinea
without rank:	Arcellinida
without rank:	Difflugina
Genre :	Difflugia
Scientific name
	Difflugia
	Leclerc , 1815

Difflugia acuminata

The Difflugia are a genus of unicellular , wired amoeba . They are the eponymous genus of the group of Difflugina . With over 300 described species, they are also the most extensive genus of the Arcellinida .

features

The housing of the representatives of the Difflugia is always structured or agglutinated in platelet form from mineral particles or diatoms in an organic binder. With many Difflugia , the selection and arrangement of the material is species-specific. The mouth opening can be round, oval, toothed, lobed or terminal - only split mouth openings do not occur.

The cell nucleus mostly belongs to the ovular type, so it contains many nuclear bodies , only a few types belong to the vesicular type with only one nucleus.

ecology

Difflugia have diverse habitats, many species are found in the sediments of freshwater or between aquatic plants, some live planktonic or in dry mosses. Some freshwater species have photosynthesizing symbionts . They mainly feed on algae and mushrooms .

Systematics

The genus was first described by Leclerc in 1815 , the type species is Difflugia proteiformis . With over 300 described species and over 200 other sub-taxa, they are the most extensive genus of the Arcellinida . However, the internal systematics of the Difflugia is considered to be extremely inconsistent, since many of the taxa are historical and have only inadequate diagnoses.

Some types are:

proof

↑ ^a ^b ^c ^d Ralf Meisterfeld: Arcellinida , In: John J. Lee, GF Leedale, P. Bradbury (Ed.): An Illustrated Guide to the Protozoa . tape 2 . Allen, Lawrence 2000, ISBN 1-891276-23-9 , pp. 837 .

Web links

Commons : Difflugia - collection of images, videos and audio files

[mei-1] Ralf Meisterfeld: Arcellinida , In: John J. Lee, GF Leedale, P. Bradbury (Ed.): An Illustrated Guide to the Protozoa . tape 2 . Allen, Lawrence 2000, ISBN 1-891276-23-9 , pp. 837 .