Data/hora: 07/06/2024 04:31:36

Provedor de dados: 	5	
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; Micro-FTIR; Palynology; Prorocentrales; 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	
Identificador: 	http://archimer.ifremer.fr/doc/00398/50971/51728.pdf

DOI:10.1111/jpy.12582

http://archimer.ifremer.fr/doc/00398/50971/	
Editor: 	Wiley	
Formato: 	application/pdf	
Fonte: 	Journal Of Phycology (0022-3646) (Wiley), 2017-12 , Vol. 53 , N. 6 , P. 1193-1205	
Fonte: 	2017 Phycological Society of America

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