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Morphological and molecular phylogenetic identification and record verification of Gambierdiscus excentricus (Dinophyceae) from Madeira Island (NE Atlantic Ocean)

2019Journal article Open access
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dc.contributor.authorHoppenrath, Mona
dc.contributor.authorKretzschmar, A. Liza
dc.contributor.authorKaufmann, Manfred J.
dc.contributor.authorMurray, Shauna A.
dc.date.accessioned2021-10-01T09:07:38Z
dc.date.available2021-10-01T09:07:38Z
dc.date.issued2019
dc.description.abstractThe marine benthic dinoflagellate genus Gambierdiscus currently contains ~ 16 species that can be highly morphologically similar to one another, and therefore molecular genetic characterization is necessary to complement the morphological species determination. Gambierdiscus species can produce ciguatoxins, which can accumulate through the food chain and cause ciguatera fish poisoning. Recent studies have suggested that Gambierdiscus excentricus may be one of the main species responsible for ciguatoxin production in the temperate and tropical regions of the eastern Atlantic. The present study definitively identifies the species, G. excentricus, from Madeira Island, Northeast-Atlantic Ocean (32° 38′ N 16° 56′ W) by examining the morphology of a strain using light and scanning electron microscopy and sequencing regions of the ribosomal DNA (D8-D10 LSU, SSU rDNA). Variability in the shape of the apical pore and the microarchitecture of the apical pore plate were documented for the first time, as well as variability in the width of the second antapical plate. The first SSU rDNA sequence for the species is reported. Because G. excentricus is known to produce high levels of CTX-like compounds, its presence and toxicity should be regularly monitored to establish whether it is the primary cause of the ciguatera poisoning events on Madeira Island.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationHoppenrath, M., Kretzschmar, A. L., Kaufmann, M. J., & Murray, S. A. (2019). Morphological and molecular phylogenetic identification and record verification of Gambierdiscus excentricus (Dinophyceae) from Madeira Island (NE Atlantic Ocean). Marine Biodiversity Records, 12(1), 1-9. https://doi.org/10.1186/s41200-019-0175-4pt_PT
dc.identifier.doi10.1186/s41200-019-0175-4pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.13/3686
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherBMCpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectBenthicpt_PT
dc.subjectEpiphyticpt_PT
dc.subjectGambierdiscuspt_PT
dc.subjectMorphologypt_PT
dc.subjectPhylogenypt_PT
dc.subjectSSU rDNApt_PT
dc.subject.pt_PT
dc.subjectFaculdade de Ciências da Vidapt_PT
dc.titleMorphological and molecular phylogenetic identification and record verification of Gambierdiscus excentricus (Dinophyceae) from Madeira Island (NE Atlantic Ocean)pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue1pt_PT
oaire.citation.titleMarine Biodiversity Recordspt_PT
oaire.citation.volume12pt_PT
person.familyNameKaufmann
person.givenNameManfred
person.identifier.ciencia-idA316-A34A-F7AF
person.identifier.orcid0000-0001-6213-3229
person.identifier.ridA-7561-2013
person.identifier.scopus-author-id35264346100
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication041c8f9b-d342-4678-938d-9c95a4fd19de
relation.isAuthorOfPublication.latestForDiscovery041c8f9b-d342-4678-938d-9c95a4fd19de

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