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- Title
AMPHIDINIUM CRYOPHILUM SP. NOV. (DINOPHYCEAE) A NEW FRESHWATER DINOFLAGELLATE. II. ULTRASTRUCTURE.
- Authors
Wilcox, Lee W.; Wedemayer, Gary J.; Graham, Linda E.
- Abstract
The dinoflagellate Amphidinium cryophilum sp. nov is one of the few gymnodinians to be studied at the ultra structural level. It resembles other dinoflagellates in the structure of the nucleus, thrichocyts, storage materials, flagella, mitochondrta, and microbodies. Other features of A. cryphilum less commonly observed in related organisms include a network of small interconnected vesicles, a system of large, peripheral vacuoles, chloroplasts bound by two rather than three membranes, an accumulation body, thylakoid-associated plastoglabidi, a vesiculated nuclear envelope, a complex tubular pusule, striated flagellar collars, collared pits, and a peduncle. The occurrence of a peduncle, a structure implicated in photography, in this autographic organism is noteworthy. The ultrastructure of the peduncle of A. cryophilum differs significantly from that reported in another dinoflagellate.
- Subjects
DINOFLAGELLATES; PHYTOFLAGELLATES; GYMNODINIUM; GYMNODINIACEAE; ORGANELLES; GYMNODINIALES
- Publication
Journal of Phycology, 1982, Vol 18, Issue 1, p18
- ISSN
0022-3646
- Publication type
Article
- DOI
10.1111/j.1529-8817.1982.tb03153.x