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