Distribution of Dinophysis species and their association with lipophilic phycotoxins in plankton from the Argentine Sea

Fabro, Elena; Almandoz, Gastón O.; Ferrario, Martha E.; Tillmann, Urban; Cembella, Allan; Krock, Bernd

doi:10.1016/j.hal.2016.09.001

Cited by 36 publications

(23 citation statements)

References 47 publications

(55 reference statements)

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“…D. acuminata cell densities showed a significant correlation with PTX-2 and PTX-2sa concentrations, whereas no DSP toxins were detected in plankton samples. This coincides with previous studies in the Argentinean Sea that showed the main toxins from Dinophysis profiles to be PTX, while OA and its derivatives (DTX) are rarely found (Fabro et al, 2015(Fabro et al, , 2016Gracia Villalobos et al, 2015;Krock et al, 2015). Despite the absence of DSP toxins in plankton samples, OA and DTX-1 were detected in the seawater by SPATT sampling during the present study, suggesting that DSP toxins are indeed part of SJG Dinophysis profiles.…”

Section: Discussionsupporting

confidence: 92%

Toxigenic Dinoflagellates and Associated Toxins in San Jorge Gulf, Argentina

Fus¹,

Krock²,

Torres³

et al. 2018

Oceanog

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and associated economic losses, especially related to fisheries and aquaculture (Lassus et al., 2016). Phycotoxins include a large variety of compounds that are classified as lipoand hydrophilic based on solute characteristics identified by various extraction methods. Within each group there are different compounds, or analogues, that share some chemical characteristics. The proportions of each analogue of the producing cells define different toxin profiles (Gerssen et al., 2010). Some of the common syndromes that may affect human consumers are diarrhetic shellfish poisoning (DSP) caused by lipophilic-toxins (DST) produced by some Dinophysis species, such as okadaic acid (OA) and dinophysistoxins (DTX). Paralytic shellfish poisoning (PSP) is

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Section: Discussionsupporting

confidence: 92%

Toxigenic Dinoflagellates and Associated Toxins in San Jorge Gulf, Argentina

Fus¹,

Krock²,

Torres³

et al. 2018

Oceanog

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“…Whereas the occurrence of D. norvegica seems to be constrained to southern Argentine waters (>52°S; Fabro et al, 2016), consistent with its description as a boreal species, D. acuminata and D. tripos have been found in the entire Argentine Sea (Balech, 1988). D. acuminata has been recorded in plankton samples from the Patagonian coasts and North Patagonian gulfs (Gil et al, 1989;Sastre et al, 1990;Santinelli et al, 1994bSantinelli et al, , 2002Santinelli, 2008;Gracia Villalobos et al, 2015), from the San Jorge Gulf (Akselman, 1996), and from middle shelf waters along the Argentine Sea (Fabro et al, 2015), as well as in stomach contents of the commercially exploited scallop Zygochlamys patagonica (Schejter et al, 2002), while D. tripos was recorded from middle shelf waters (Fabro et al, 2015) and the North Patagonian gulfs (Gracia Villalobos et al, 2015).…”

Section: Diarrhetic Shellfish Poisoning (Dsp)supporting

confidence: 58%

“…Detected DSP toxins included OA, DTX-1, DTX-2, PTX-2, and YTX (Turner and Goya, 2015). In more recent reports, PTX-2 was found in the entire Argentine Sea, associated with several Dinophysis species (Gracia Villalobos et al, 2015;Krock et al, 2015a;Fabro et al, 2016), and PTX-2 seco acid (PTX-2sa) was associated with D. tripos in the northern area (37°-43°S; Fabro et al, 2015). All three known YTX producers (Lingulodinium polyedra, Gonyaulax spinifera, and Protoceratium reticulatum) have been reported in Argentine waters (Balech, 1988).…”

Section: Diarrhetic Shellfish Poisoning (Dsp)mentioning

confidence: 93%

“…Spiroimine shellfish poisoning (SSP) (Almandoz et al, 2014;Fabro et al, 2017), 4. Diarrhetic shellfish poisoning (DSP; Gayoso et al, 2002;Sar et al, 2010Sar et al, , 2012Montoya et al, 2011;Sunesen et al, 2014;Gracia Villalobos et al, 2015;Krock et al, 2015a;Turner and Goya, 2015;Akselman et al, 2015;Fabro et al, 2015Fabro et al, , 2016, and 5. Azaspiracid shellfish poisoning (AZP; Turner and Goya, 2015;.…”

Section: Introductionmentioning

confidence: 99%

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Occurrence of Marine Biotoxins and Shellfish Poisoning Events and Their Causative Organisms in Argentine Marine Waters

Krock¹,

Ferrario²,

Akselman³

et al. 2018

Oceanog

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“…Severe detrimental consequences in the food web, ecosystem services, and human health have been attributed to these toxic events (Benavides et al, 1995;Montoya et al, 1996;Gayoso and Fulco, 2006). Other toxigenic species and associated toxins were registered in the shelf and frontal areas, for instance, dinoflagellates of the genus Dinophysis (Sar et al, 2012;Fabro et al, 2016) and diatoms of the genus Pseudo-nitzschia (Negri et al, 2004;Almandoz et al, 2007Almandoz et al, , 2017. Blooms composed of various species of Azadinium spp.…”

Section: Introductionmentioning

confidence: 99%

Plankton Multiproxy Analyses in the Northern Patagonian Shelf, Argentina: Community Structure, Phycotoxins, and Characterization of Toxic Alexandrium Strains

et al. 2018

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The extensive Argentine continental shelf supports high plankton productivity and fish catches. In particular, El Rincón coastal area and the adjacent shelf fronts (38.5-42 • S, 58.5-62 • W) comprise diverse habitats and hold species of economic and ecological value. So far, studies of the microbial community present at the base of the food web remain scarce. Here, we describe the late winter plankton (5-200 µm) structure in terms of abundance, biomass, species composition, functional groups, and phycotoxin profiles in surface waters of El Rincón in September 2015. Diatoms are the most abundant and the largest contributors to carbon biomass at most stations. They dominated the coastal and inner-shelf (depths <50 m), while dinoflagellates and small flagellates (<15 µm) dominated offshore at the middle-shelf waters (depth ∼100 m). In addition, large (>20 µm) heterotrophic protists such as various ciliates and dinoflagellates species were more abundant offshore. Scanning of phycotoxins disclosed that paralytic shellfish poisoning (PSP) toxins were dominated by gonyautoxins-1/4 (GTX1/4), whereas lipophilic toxins were detected in low abundance, for example, domoic acid (DA). However, a bloom of Pseudo-nitzschia spp. (up to 3.6 × 10 5 cells L −1) was detected at inner-shelf stations. Pectenotoxin-2 (PTX-2) and 13-desmethyl spirolide C (SPX-1) were the most abundant in the field. The PTX-2 cooccurred with Dinophysis spp., mainly D. tripos, while SPX-1 dominated at middle-shelf stations, where cells of Alexandrium catenella (1 strain) and A. ostenfeldii (3 strains) were isolated. The quantitative PSP profiles of the Alexandrium strains differed significantly from the in situ profiles. Moreover, the three A. ostenfeldii strains produced PSP and additionally, five novel spirolides. Phylogenetic analyses of these newly isolated strains

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Distribution of Dinophysis species and their association with lipophilic phycotoxins in plankton from the Argentine Sea

Cited by 36 publications

References 47 publications

Toxigenic Dinoflagellates and Associated Toxins in San Jorge Gulf, Argentina

Toxigenic Dinoflagellates and Associated Toxins in San Jorge Gulf, Argentina

Occurrence of Marine Biotoxins and Shellfish Poisoning Events and Their Causative Organisms in Argentine Marine Waters

Plankton Multiproxy Analyses in the Northern Patagonian Shelf, Argentina: Community Structure, Phycotoxins, and Characterization of Toxic Alexandrium Strains

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