| one publication added to basket [120232] | Ultrastructure of the red tide dinoflagellate Gymnodinium breve 1. General description
Steidinger, K.A.; Truby, E.W.; Dawes, C.J. (1978). Ultrastructure of the red tide dinoflagellate Gymnodinium breve 1. General description. J. Phycol. 14(1): 72-79
In: Journal of Phycology. Blackwell Science: New York. ISSN 0022-3646; e-ISSN 1529-8817, more
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| Keywords |
Aquatic communities > Plankton > Phytoplankton
Aquatic organisms > Noxious organisms
Cell constituents > Chromosomes
Cell constituents > Cytoplasm
Cell constituents > Nuclei
Chemical compounds > Organic compounds > Carbohydrates > Saccharides > Polysaccharides > Starch
Chloroplasts
Dinoflagellates
Organelles
Red tides
Ultrastructure
Gymnodinium F.Stein, 1878 [WoRMS]; Gymnodinium breve C.C.Davis, 1948 [WoRMS]
Marine/Coastal |
| Authors | | Top |
- Steidinger, K.A.
- Truby, E.W.
- Dawes, C.J.
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| Abstract |
Gymnodimium breve Davis, an unarmored marine dinoflagellate has a cell covering (theca) composed of four membranes. The inner two membranes represent a vesicular layer and in tangential section, the theca appears composed of polygonal areas. Unusual threat ridges are located in the cingular region between the epi- and hypocone. This osmotically sensitive species is extremely vesiculate with dispersed areas of cytoplasm containing typical eukaryotic organelles as well as other organelles found only in dinoflagellates. The non-vesiculated cytoplasm is continuous in serial sections. The chloroplasts can contain either quasi-radial or parallel lamellae typically consisting of three thylakoids each. The pyrenoid is multiple-stalked and lacks a starch cap. The dinophycean pusule is simple and similar to those found in several unarmored marine species. The nucleus is typically dinophycean but the chromosomes appear to lack nonfibrillar material. |
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