Trachelomonas
Trachelomonas sp.
Trachelomonas is a genus of algae from the order of Euglenida.
Description
Trachelomonas lives as unicellular flagellate with a strikingly long flagellum, which is usually more than twice as long as the cell. The cells reach a length 13-55 microns. They contain two or more marginal, green chloroplasts, often with pyrenoids and a extraplastidiären eyespot. The cells surrounded by a rigid casing, the so-called Lorica. The Lorica is round, elliptical, or vase-shaped, and may be yellowish, reddish, brownish, or black in color, and is ornamented with many types of warts or spines. The outlet for the scourge is often designed as a "collar". Because of manganese and iron compounds in the Lorica the cell contents in the light microscope is often not apparent.
Reproduction
Asexual reproduction occurs by cell division within the housing; one of the two daughter cells slip through the opening and forms a new scourge of Lorica.
Sexual reproduction is not known.
Dissemination
Trachelomonas lives in the plankton and sediment of ponds, especially in organically polluted, oxygen-poor stagnant waters and marshes. The algae can form blooms, which leads to the browning of the water.
Types (selection)
- Trachelomonas armata
- Trachelomonas caudata
- Trachelomonas euchlora
- Trachelomonas hispida
- Trachelomonas hystrix
- Trachelomonas oblonga
- Trachelomonas volvocina
Swell
- Karl -Heinz Linne von Berg, Kerstin Hoef -Emden, Birger Marin, Michael Melkonian: The Cosmos algae leader. The main freshwater algae under the microscope. Franckh Cosmos, 2006, ISBN 3-440-09719-6
- Heinz Streble, Dieter Krauter: The Life in the Water. Microflora and microfauna of fresh water. A field guide. Franckh Cosmos, 2006, ISBN 3-440-10807-4