0000000000860975

AUTHOR

Mohamed Laabir

showing 2 related works from this author

Alexandrium pacificum Litaker sp. nov (Group IV): Resting cyst distribution and toxin profile of vegetative cells in Bizerte Lagoon (Tunisia, Souther…

2015

International audience; A high spatial resolution sampling of Alexandrium pacificum cysts, along with sediment characteristics (% H2O, % organic matter (OM), granulometry), vegetative cell abundance and environmental factors were investigated at 123 study stations in Bizerte Lagoon (Tunisia). Morphological examination and ribotyping of cells obtained from a culture called ABZ1 obtained from a cyst isolated in lagoon sediment confirmed that the species was A. pacificum. The toxin profile from the ABZ1 culture harvested during exponential growth phase was simple and composed of the N-sulfocarbamoyl toxins C1 (9.82 pg toxin cell−1), the GTX6 (3.26 pg toxin cell−1) and the carbamoyl toxin Neo-S…

0106 biological sciencesPlant ScienceVegetative cells010501 environmental sciencesAquatic ScienceBiologySpatial distribution01 natural sciencesAlexandrium pacificum Litaker sp. nov (Alexandrium catenella-group IV (Whedon & Kofoid)[ SDE ] Environmental SciencesRibotypingMediterranean seaAquatic plantAlexandrium pacificum Litaker sp nov (Alexandrium catenella-group IV (Whedon & Kofoid) Balech)BotanymedicineOrganic matterCyst14. Life underwater0105 earth and related environmental scienceschemistry.chemical_classificationCysts010604 marine biology & hydrobiologyRibotypemedicine.disease6. Clean waterToxin profilechemistryMappingGranulometry[SDE]Environmental SciencesBalech)Taxonomy (biology)
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Metal stresses modify soluble proteomes and toxin profiles in two Mediterranean strains of the distributed dinoflagellate Alexandrium pacificum

2022

WOS:000789651000009; HABs involving Alexandrium pacificum have been reported in metal-contaminated ecosystems, suggesting that this distributed species adapts to and/or can tolerate the effects of metals. Modifications in soluble proteomes and PST contents were characterized in two Mediterranean A. pacificum strains exposed to mono- or polymetallic stresses (zinc, lead, copper, cadmium). These strains were isolated from two anthropized locations: Santa Giusta Lagoon (Italy, SG C10-3) and the Tarragona seaport (Spain, TAR C5-4F). In both strains, metals primarily downregulated key photosynthesis proteins. Metals also upregulated other proteins involved in photosynthesis (PCP in both strains)…

ProteomicsEnvironmental EngineeringProteomeParalytic shellfish toxins[SDE.MCG]Environmental Sciences/Global Changeschemistry.chemical_elementmedicine.disease_causePhotosynthesiscomplex mixturesMicrobiologychemistry.chemical_compoundTar (tobacco residue)BiosynthesismedicineEnvironmental ChemistryWaste Management and DisposalEcosystemCadmiumbiologyStrain (chemistry)Harmful algal bloomToxinChemistryDinoflagellatebiology.organism_classificationPollutionADKMetalsDinoflagellida[SDE.BE]Environmental Sciences/Biodiversity and Ecology
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