Alexandrium tamarense
| Alexandrium tamarense | ||||||||||||
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| Alexandrium tamarense | ||||||||||||
| ( M.Lebour ) Balech |
Alexandrium tamarense is a dinoflagellate . It is toxic and causes paralytic mussel poisoning (PSP), a disease that occurs in humans.
features
The theca of Alexandrium tamarense is made up of smooth and thin plates. In the light microscope , they are difficult to see. Special methods of staining, squeezing techniques for theca or scanning electron microscopy are required. The epitheca is broadly conical, the associated shoulders are indistinct. The mortgage is often not recognizable in the profile. It is slightly trapezoidal and concave at the rear end. A pronounced, conspicuous pore can be found in the first apical plate ; however, if the cells are still intact, they cannot be recognized. Antapical thorns or apical horns are absent.
Life cycle
The life cycle is heteromorphic . There are benthic rest stages. They are smooth and elliptical. A layer of mucus surrounds them.
Occurrence
Alexandrium tamarense is common in Mediterranean coastal areas.
Individual evidence
- ↑ Liang, Zhongxiu; Li, Jian; Li, Jitao; Tan, Zhijun; Reindeer, shark; Zhao, Fazhen (July 8, 2014). Toxic Dinoflagellate Alexandrium tamarense Induces Oxidative Stress and Apoptosis in Hepatopancreas of Shrimp (Fenneropenaeus chinensis . Ocean University of China 13 (6): 1005-1011. Doi : 10.1007 / s11802-014-2397-8 .
Used literature
- Robert Hofrichter (Ed.): The Mediterranean II / 1 . 2003, ISBN 3827410908 .