Flow amoeba
Flow amoeba | ||||||||||||
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Flow amoeba ( Vahlkampfia sp.) (Middle) between two Cryptomonads , surrounded by numerous bacteria |
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Systematics | ||||||||||||
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Scientific name | ||||||||||||
Vahlkampfia | ||||||||||||
Chatton & Lalung-Bonnaire , 1912 |
The flowing amoeba ( Vahlkampfia ) are a protozoa genus from the group of the Heterolobosea .
features
In contrast to most Heterolobosea, a flagellated stage is missing in the life cycle of the flow amoeba, nor do they form fruiting bodies. The amoeba always have only one nucleus . The cysts can have a gelatinous covering, pores for the excystation are almost always missing.
Way of life
Flow amoeba feed on bacteria , blue-green algae and organic sludge components, which they absorb into the cell after flowing around.
Systematics
For a long time, the genus was considered to be extremely species-rich, but many species did not belong to the genus, particularly on the basis of molecular biological studies of the rDNA. Some species were transferred to new genera ( Paravahlkampfia , Neovahlkampfia ), others now belong to the genus Tetramitus . The remaining five types are:
- Vahlkampfia avara
- Vahlkampfia inornata
- Vahlkampfia ciguana
- Vahlkampfia orchilla
- Vahlkampfia signyensis
Individual evidence
- ↑ David J. Patterson, A. Rogerson, Naja Vors: Heterolobosea In: John J. Lee, GF Leedale, P. Bradbury (Eds.): An Illustrated Guide to the Protozoa . tape 2 . Allen, Lawrence 2000, ISBN 1-891276-23-9 , pp. 1105 .
- ↑ Werkgymnasium Heidenheim; since 1982, as of 2006; "Water investigation" project; Indicator organisms (saprobia); Online ( Memento of the original from February 28, 2006 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ^ Johan F. De Jonckheere: Heterolobosea Page and Blanton 1985 , Version of September 21, 2008, in The Tree of Life Web Project, http://tolweb.org/ , Online .