Special Issue "Selected Papers from the 7th Iberian Congress on Cyanotoxins / 3rd Ibero-American Congress on Cyanotoxin"

A special issue of Toxins (ISSN 2072-6651). This special issue belongs to the section "Marine and Freshwater Toxins".

Deadline for manuscript submissions: closed (15 December 2022) | Viewed by 406

Special Issue Editors

Dr. Vitor Gonçalves
E-Mail Website
Guest Editor
1. CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Pólo dos Açores - Faculdade de Ciências e Tecnologias, Universidade dos Açores, R. Mãe de Deus 13A, 9500-321 Ponta Delgada, Portugal
2. BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Campus de Vairão, 4485-661 Vairão, Portugal
Interests: freshwater ecology; ecological quality assessment; environmental monitoring; environmental reconstruction; cyanobacteria; microalgae; diatoms; blue biotechnology; algae culture; litter decomposition
Special Issues, Collections and Topics in MDPI journals
Dr. Amélia Fonseca
E-Mail Website
Guest Editor
1. CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Pólo dos Açores, 9500-321 Ponta Delgada, Portugal
2. Faculdade de Ciências e Tecnologias, Universidade dos Açores, 9500-321 Ponta Delgada, Açores, Portugal
Interests: molecular biology; genetics; biodiversity; cyanobacteria; cyanotoxins; microalgae; phylogeny; blue biotechnology; culture collections
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Although cyanobacteria are recognized for their role in forming the aerobic atmosphere that enabled the evolution of superior life forms, they are probably more commonly known for their occurrence in algae blooms associated with the eutrophication of aquatic ecosystems. In the last decades, the synergy between eutrophication and climate change is leading to the rapid increase in cyanobacteria dominance and the frequency of cyanobacterial harmful blooms (cHABs). During their long evolutionary history, cyanobacteria were able to adapt to different habitats and environmental conditions by developing a great morphological and physiological diversity, including the capacity to synthesize a very high number of compounds, both beneficial and harmful.

Cyanotoxins are one of the major health risks associated with water resources. They have toxic effects on humans and animals exposed through drinking water, aquaculture, recreation, and other contamination routes. Most cyanobacteria toxic events are related to microcystins, anatoxins, saxitoxins, and cylindrospermopsin produced by large planktonic species. Still, the production of toxins by planktonic picocyanobacterial and benthic species and the discovery of new toxins highlight the need for more research on this topic.

This Special Issue will gather selected papers presented in the 7th Iberian Congress of Cyanotoxins / 3rd Ibero-American Congress of Cyanotoxins (https://7cic.com/en/home/) with novel research on cyanotoxins, including their monitoring, mitigation and removal, detection methodologies, and biotechnological applications, among other related topics.

Dr. Vitor Gonçalves
Dr. Amélia Fonseca
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a double-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Toxins is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • cyanobacteria
  • cyanotoxins
  • new toxins and detection methods
  • toxicology of cyanobacteria metabolites
  • monitoring, mitigation, and removal of cyanotoxins
  • cHABs under a changing climate
  • biotechnological applications
  • culture collections

Published Papers (1 paper)

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Research

Article
Determination of Multiclass Cyanotoxins in Blue-Green Algae (BGA) Dietary Supplements Using Hydrophilic Interaction Liquid Chromatography-Tandem Mass Spectrometry
Toxins 2023, 15(2), 127; https://doi.org/10.3390/toxins15020127 - 04 Feb 2023
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Abstract
In recent years, the consumption of blue-green algae (BGA) dietary supplements is increasing because of their health benefits. However, cyanobacteria can produce cyanotoxins, which present serious health risks. In this work we propose hydrophilic interaction liquid chromatography coupled with tandem mass spectrometry (HILIC-MS/MS) [...] Read more.
In recent years, the consumption of blue-green algae (BGA) dietary supplements is increasing because of their health benefits. However, cyanobacteria can produce cyanotoxins, which present serious health risks. In this work we propose hydrophilic interaction liquid chromatography coupled with tandem mass spectrometry (HILIC-MS/MS) to determine cyanotoxins in BGA dietary supplements. Target toxins, including microcystin-leucine-arginine (MC-LR) and microcystin-arginine-arginine (MC-RR), nodularin, anatoxin-a and three non-protein amino acids, β-N-methylamino-L-alanine (BMAA), 2,4-diaminobutyric acid (DAB) and N-(2-aminoethyl)glycine (AEG), were separated using a SeQuant ZIC-HILIC column. Cyanotoxin extraction was based on solid–liquid extraction (SLE) followed by a tandem-solid phase extraction (SPE) procedure using Strata-X and mixed-mode cation-exchange (MCX) cartridges. The method was validated for BGA dietary supplements obtaining quantification limits from 60 to 300 µg·kg−1. Nine different commercial supplements were analyzed, and DAB, AEG, and MCs were found in some samples, highlighting the relevance of monitoring these substances as precaution measures for the safe consumption of these products. Full article
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