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dc.date.accessioned 2023-11-29T17:09:04Z
dc.date.available 2023-11-29T17:09:04Z
dc.date.issued 2023
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/160893
dc.description.abstract In the framework of a monitoring program of harmful microalgae from the marine coastal waters of the Buenos Aires Province, seven strains were isolated and characterized by morphological and molecular analysis (LSU rDNA partial sequencing, D1–D3 regions). Established strains belonged to Alexandrium catenella, Protoceratium reticulatum and Pseudo-nitzschia multiseries. The toxinological profile of the target strains were determined by UHPLC-FLD equipment for paralytic shellfish toxins (PSTs) and LC-MS/MS for lipophilic (LSTs) and amnesic toxins (ASTs). The toxin profile varied in the four strains of A. catenella, the predominant compounds were gonyautoxins (GTXs) GTX2,3 and GTX1,4 for strains LPCc001 and LPCc004, and N-sulfocarbamoyl toxins (Cs) C1,2 and GTX1,4 for strains LPCc002 and LPCc008. The obtained cellular toxicity values were moderate-to-high (12.38–46.40 pg saxitoxin equiv. cell−1). The toxin profile of P. reticulatum was dominated by yessotoxins (YTXs) (up to 94.40 pg cell−1) accompanied by homo-yessotoxin (Homo-YTX) traces. In P. multiseries, the toxin profiles were dominated by domoic acid (DA) (1.62 pg cell−1 and 1.09 pg cell−1) and secondarily by Isomer A (Iso-A), Epi-domoic acid (Epi-DA), Isomer-E (Iso-E) and Isomer-D (Iso-D). This study provides detailed information about representative HAB species in the area, useful for resource management, risk evaluation and related research on toxic dinoflagellates and diatoms. en
dc.language en es
dc.subject Alexandrium catenella es
dc.subject molecular analysis es
dc.subject morphology es
dc.subject Protoceratium reticulatum es
dc.subject Pseudo-nitzschia multiseries es
dc.subject toxinological profiles es
dc.title Morphological, phylogenetic and toxinological characterization of potentially harmful algal species from the marine coastal waters of Buenos Aires Province (Argentina) en
dc.type Articulo es
sedici.identifier.other https://doi.org/10.3390/phycology3010006 es
sedici.identifier.issn 2673-9410 es
sedici.creator.person Tardivo Kubis, Jonás Adrián es
sedici.creator.person Rodríguez, Francisco es
sedici.creator.person Rossignoli, Araceli E. es
sedici.creator.person Riobó, Pilar es
sedici.creator.person Sar, Eugenia Alicia es
sedici.creator.person Sunesen, Inés es
sedici.subject.materias Ciencias Naturales es
sedici.subject.materias Biología es
sedici.description.fulltext true es
mods.originInfo.place Facultad de Ciencias Naturales y Museo es
sedici.subtype Articulo es
sedici.rights.license Creative Commons Attribution 4.0 International (CC BY 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by/4.0/
sedici.description.peerReview peer-review es
sedici.relation.journalTitle Phycology es
sedici.relation.journalVolumeAndIssue vol. 3, no. 1 es


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