Chroomonas
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| Scientific name | ||||||||||||
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Chroomonas is an algae - genus from the class of cryptophyceae .
description
Chroomonas live as oval or at the rear end tapering single-celled organisms with a blue-green to blue plastid and two flagella of different lengths . The flagella arise slightly below the often asymmetrical cell front end from a pharynx opening. There is often a contractile vacuole at the cell front end . The throat is lined with explosive organelles , the so-called ejectosomes , which can be seen as dark spots under the light microscope. The plastid is H- or plate-shaped, often with a central pyrenoid . The diet of Chroomonas is mixotrophic . The blue pigments of the alga are used as fluorescent dyes in microscopy. The cells reach a size of 9 to 16 µm.
Reproduction
The asexual multiplication takes place by longitudinal division, reverses in the polarity (orientation) of the daughter cells.
Sexual reproduction is unknown.
Types (selection)
- Chroomonas acuta
- Chroomonas diplococca
- Chroomonas falcata
- Chroomonas nordstedtii
- Chroomonas virescens
distribution
Croomonas lives mainly in temperate and cold waters, also under ice sheets and at greater depths.
swell
- Karl-Heinz Linne von Berg, Michael Melkonian u. a .: The Kosmos algae guide. The most important freshwater algae under the microscope. Kosmos, Stuttgart 2004, ISBN 3-440-09719-6 .
Web links
- Chroomonas at algaebase.org
- Pictures of Chroomonas dordstedtii