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  The thecal structure of Peridiniopsis amazonica spec. nov. (Dinophyceae), a new cyst-producing freshwater dinoflagellate from Amazonian floodplain lakes

Meyer, B., Rai, H., & Cronberg, G. (1997). The thecal structure of Peridiniopsis amazonica spec. nov. (Dinophyceae), a new cyst-producing freshwater dinoflagellate from Amazonian floodplain lakes. Nova Hedwigia, 65(1-4), 365-375.

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 Creators:
Meyer, Barbara1, Author           
Rai, Hakumat1, Author           
Cronberg, Gertrud, Author
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1Department Ecophysiology, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_976547              

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Free keywords: dinoflagellates; Peridiniopsis amazonica; new species; thecal plate structure; cysts; Central Amazonian lakes; Brazil
 Abstract: A new peridinioid, cyst-producing dinoflagellate, Peridiniopsis amazonica spec. nov., is described from six Central Amazonian floodplain lakes of different lake water types (white, mixed and dystrophic black water lakes). It is the most common dinoflagellate and is dominant in acidic and circumneutral lakes lateral to Rio Negro and Rio Solimoes at low water levels, low nutrient supply and relatively high water temperatures. The large sized species is distinctive in its rhombic body shape, rigid theca, two prominent antapical spines and offset cingulum. The plate formula is: Po, X, 3', 1a, 6 '', 6c, 4s, 5''' 2''''. Peridiniopsis amazonica forms endogenous resting cysts with unornamented walls reflecting the shape of the vegetative cell. The period of high water level is spent in the cyst stage

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Language(s): eng - English
 Dates: 1997-04
 Publication Status: Issued
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 Rev. Type: -
 Identifiers: eDoc: 207479
Other: 1610/S 37165
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Title: Nova Hedwigia
Source Genre: Journal
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Pages: - Volume / Issue: 65 (1-4) Sequence Number: - Start / End Page: 365 - 375 Identifier: ISSN: 0029-5035