A new cyst-theca relationship for Protoperidinium parthenopes Zingone & Montresor 1988 (Peridiniales, Dinophyceae)

Organic-walled resting cysts of Protoperidinium parthenopes Zingone & Montresor 1988 were collected from a sediment trap in Omura Bay, western Japan. The cysts are spherical and pale brown in color. The cyst wall has two layers: a thick endophragm with granulate surface, and a thin periphragm. T...

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Bibliographic Details
Published inPalynology Vol. 33; no. 2; pp. 11 - 18
Main Authors Kawami, Hisae, Matsuoka, Kazumi
Format Journal Article
LanguageEnglish
Published American Association of Stratigraphic Palynologists 01.02.2009
American Association of Stratigraphic Palynologists Foundation
Subjects
Asia
Biological taxonomies
Cell motility
Cysts
Dinoflagellata
experimental studies
Far East
Japan
Kyushu
laboratory studies
living taxa
morphology
Nagasaki Japan
Oceans
Omura Bay
Pacific Ocean
Paleobotany
Palynology
palynomorphs
Peridiniales
Plankton
Protoperidinium parthenopes
Rectangular plates
Seas
Sediments
theca
Theca cells
West Pacific
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Summary:Organic-walled resting cysts of Protoperidinium parthenopes Zingone & Montresor 1988 were collected from a sediment trap in Omura Bay, western Japan. The cysts are spherical and pale brown in color. The cyst wall has two layers: a thick endophragm with granulate surface, and a thin periphragm. Three complete and incomplete parasutures appear on the surface of the endocyst. The archeopyle formed on the endocyst is basically saphopylic and compound with some combination of complete and incomplete parasutures. The cyst of Protoperidinium parthenopes closely resembles the cyst of Protoperidinium americanum (Gran & Braarud 1935) Balech 1974, but differs in the shape of the periphragm, the cyst diameter, and in the archeopyle.
ISSN:0191-6122
1558-9188
DOI:10.2113/gspalynol.33.2.11