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Provedor de dados:  ArchiMer
País:  France
Título:  First record of resting cysts of the benthic dinoflagellate Prorocentrum leve in a natural reservoir in Gujan-Mestras, Gironde, France
Autores:  Mertens, Kenneth
Gu, Haifeng
Pospelova, Vera
Chomerat, Nicolas
Nezan, Elisabeth
Gurdebeke, Pieter
Bogus, Kara
Vrielinck, Henk
Rumebe, Myriam
Meteigner, Claire
Data:  2017-12
Ano:  2017
Palavras-chave:  Cellulosic
Resting stage
Resumo:  The resting cysts of the benthic dinoflagellate Prorocentrum leve from a natural reservoir in Gujan-Mestras (Gironde, France) were described in this study. The incubated urn-shaped cysts gave rise to cells of Prorocentrum leve. Morphological observations through light microscopy and scanning electron microscopy, particularly of the periflagellar platelets, combined with large subunit ribosomal DNA sequences obtained through single-cell analysis confirm their affinity to the species Prorocentrum leve. The cysts are characterized by a specific shape and the presence of an anterior plug. This is the first conclusive evidence for fossilizable resting stages within the Prorocentrales, one of the major orders within the Dinophyceae. Palynological treatments show that the cysts and endospores withstand hydrochloric and hydrofluoric acids. MicroFTIR analysis on single specimens suggests that the composition of the endospore is cellulosic and the cyst wall a more robust, non-cellulosic β-glucan. The spectra overall are similar to other published spectra of resting cysts from autotrophic, planktonic dinoflagellates.
Tipo:  Text
Idioma:  Inglês

Editor:  Wiley
Formato:  application/pdf
Fonte:  Journal Of Phycology (0022-3646) (Wiley), 2017-12 , Vol. 53 , N. 6 , P. 1193-1205
Direitos:  2017 Phycological Society of America


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