Phycotoxins and marine annelids – A global review

Pires, Estela; Lana, Paulo da Cunha; Mafra, Luiz L.

doi:10.1016/j.hal.2022.102373

Cited by 7 publications

(3 citation statements)

References 81 publications

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“…The values detected in polychaetes (44%) and sea squirts (25%) are quite high but the number of samples analyzed in these groups was too low (n = 9 and 4, respectively) to draw robust conclusions. A review of the presence of OA and other phycotoxins from the phylum Annelida was recently published [51]. In our study, OA was found in two species different from those previously reported, Aphrodita aculeata and Sipunculus nudus.…”

Section: Discussioncontrasting

confidence: 55%

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Lipophilic Shellfish Poisoning Toxins in Marine Invertebrates from the Galician Coast

Rossignoli,

Ben-Gigirey,

Cid

et al. 2023

Toxins

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For the purpose of assessing human health exposure, it is necessary to characterize the toxins present in a given area and their potential impact on commercial species. The goal of this research study was: (1) to screen the prevalence and concentrations of lipophilic toxins in nine groups of marine invertebrates in the northwest Iberian Peninsula; (2) to evaluate the validity of wild mussels (Mytilus galloprovincialis) as sentinel organisms for the toxicity in non-bivalve invertebrates from the same area. The screening of multiple lipophilic toxins in 1150 samples has allowed reporting for the first time the presence of 13-desmethyl spirolide C, pinnatoxin G, okadaic acid, and dinophysistoxins 2 in a variety of non-traditional vectors. In general, these two emerging toxins showed the highest prevalence (12.5–75%) in most of the groups studied. Maximum levels for 13-desmethyl spirolide C and pinnatoxin G were found in the bivalves Magallana gigas (21 µg kg−1) and Tellina donacina (63 µg kg−1), respectively. However, mean concentrations for the bivalve group were shallow (2–6 µg kg−1). Okadaic acid and dinophysistoxin 2 with lower prevalence (1.6–44.4%) showed, on the contrary, very high concentration values in specific species of crustaceans and polychaetes (334 and 235 µg kg−−1, respectively), to which special attention should be paid. Statistical data analyses showed that mussels could be considered good biological indicators for the toxicities of certain groups in a particular area, with correlations between 0.710 (for echinoderms) and 0.838 (for crustaceans). Polychaetes could be an exception, but further extensive surveys would be needed to draw definitive conclusions.

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Section: Discussioncontrasting

confidence: 55%

“…Nevertheless, this specimen was the only one among the polychaetes analyzed with OA results above the EU legal limit. As indicated by Pires et al (2023) [51], quick OA accumulation in polychaete tissues has been previously reported for Laeonereis sp. (maximum = 164.5 µg total OA kg −1 ) [43] and Sabella spallanzanii (max.…”

Section: Discussionsupporting

confidence: 52%

Lipophilic Shellfish Poisoning Toxins in Marine Invertebrates from the Galician Coast

Rossignoli,

Ben-Gigirey,

Cid

et al. 2023

Toxins

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“…This leads to massive algal blooms (“red tides”) becoming epidemic in some water bodies [ 2 , 3 ]. Microalgae (as well as cyanobacteria) are producers of aquatic toxins which are highly toxic for humans and animals [ 4 , 5 ]. They are highly likely to enter into fish and shellfish through food chains and accumulate in them.…”

Section: Introductionmentioning

confidence: 99%

A Sensitive Fluorescence Polarization Immunoassay for the Rapid Detection of Okadaic Acid in Environmental Waters

et al. 2023

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In this study, a homogeneous fluorescence polarization immunoassay (FPIA) for the detection of hazardous aquatic toxin okadaic acid (OA) contaminating environmental waters was for the first time developed. A conjugate of the analyte with a fluorophore based on a fluorescein derivative (tracer) was synthesized, and its interaction with specific anti-OA monoclonal antibodies (MAbs) was tested. A MAbs–tracer pair demonstrated highly affine immune binding (KD = 0.8 nM). Under optimal conditions, the limit of OA detection in the FPIA was 0.08 ng/mL (0.1 nM), and the working range of detectable concentrations was 0.4–72.5 ng/mL (0.5–90 nM). The developed FPIA was approbated for the determination of OA in real matrices: river water and seawater samples. No matrix effect of water was observed; therefore, no sample preparation was required before analysis. Due to this factor, the entire analytical procedure took less than 10 min. Using a compact portable fluorescence polarization analyzer enables the on-site testing of water samples. The developed analysis is very fast, easy to operate, and sensitive and can be extended to the determination of other aquatic toxins or low-molecular-weight water or food contaminants.

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ROS meditated paralytic shellfish toxins production changes of Alexandrium tamarense caused by microplastic particles

Li,

Liu,

Zhao

et al. 2023

Environmental Pollution

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Phycotoxins and marine annelids – A global review

Cited by 7 publications

References 81 publications

Lipophilic Shellfish Poisoning Toxins in Marine Invertebrates from the Galician Coast

Lipophilic Shellfish Poisoning Toxins in Marine Invertebrates from the Galician Coast

A Sensitive Fluorescence Polarization Immunoassay for the Rapid Detection of Okadaic Acid in Environmental Waters

ROS meditated paralytic shellfish toxins production changes of Alexandrium tamarense caused by microplastic particles

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