Ceratium

Ceratium
Ceratium sp., Japan
Systematics
without rank: Dinoflagellates (Dinoflagellata) without rank: Dinophyceae without rank: Peridiniphycidae without rank: Gonyaulacales Family : Ceratiaceae Genre : Ceratium
Scientific name
Ceratium
Cabinet (1793)

Ceratium is a genus of the dinoflagellates from the order Gonyaulacales . The large unicellular organisms live in salt and fresh water.

features

The cells are big. The tip of the episome is strongly raised or even formed into an apical horn , the hyposome has two or more antapical horns . The cingulum is more or less in the middle.

Ceratium species have yellow-brown chloroplasts . In marine species there is anisogamy with a zygotic nuclear phase change. Vegetatively, they multiply through an oblique longitudinal division, in which the armoring is split up obliquely to the sulcus and then supplemented again by the cells.

Occurrence

Ceratium are exclusively aquatic organisms that occur in fresh and salt water. In large quantities, they can trigger a so-called red tide , in which they turn the water brown. Some species are capable of bioluminescence .

Types (selection)

• Ceratium compressum
• Ceratium divaricatum
• Ceratium euarcuatum
• Ceratium furca
• Ceratium fusus
• Ceratium hirundinella
• Ceratium horridum

proof

1. ↑ ^{a b c} John J. Lee, Gordon F. Leedale, Phyllis Bradbury (Eds.): Illustrated Guide to the Protozoa, 2nd Edition . tape 1 . Society of Protozoologists, Lawrence, Kansas 2000, ISBN 1-891276-22-0 , pp. 670 .
2. ^ ^{A b} Andreas Bresinsky , Christian Körner , Joachim W. Kadereit , Gunther Neuhaus , Uwe Sonnewald : Textbook of Botany . Founded by Eduard Strasburger . 36th edition. Spektrum Akademischer Verlag, Heidelberg 2008, ISBN 978-3-8274-1455-7 , p. 703 .

Web links

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