Results 41 to 50 of about 609 (132)

Singlet Oxygen-Mediated Synthesis of Bis-spiroketals Found in Azaspiracids [PDF]

, 2014
Conversion of a simple furan into the ABCD-ring skeleton of the azaspiracids via a singlet oxygen-initiated one-pot process has been accomplished.Note: This document is the Accepted Manuscript version of a Published Work that appeared in final form in ...
Montagnon, Tamsyn, Vassilikogiannakis, Georgios, Tofi, Maria, Kouridaki, Antonia, Triantafyllakis, Myron   +4 more
core   +1 more source

Extended Targeted and Non-Targeted Strategies for the Analysis of Marine Toxins in Mussels and Oysters by (LC-HRMS)

Toxins, 2018
When considering the geographical expansion of marine toxins, the emergence of new toxins and the associated risk for human health, there is urgent need for versatile and efficient analytical methods that are able to detect a range, as wide as possible ...
Inès Dom, Ronel Biré, Vincent Hort, Gwenaëlle Lavison-Bompard, Marina Nicolas, Thierry Guérin   +5 more
doaj   +1 more source

Distribution and abundance of azaspiracid-producing dinophyte species and their toxins in North Atlantic and North Sea waters in summer 2018.

PLoS ONE, 2020
Representatives of the marine dinophyte family Amphidomataceae produce lipophilic phycotoxins called azaspiracids (AZA) which may cause azaspiracid shellfish poisoning (AZP) in humans after consumption of contaminated seafood.
Stephan Wietkamp, Bernd Krock, Dave Clarke, Daniela Voß, Rafael Salas, Jane Kilcoyne, Urban Tillmann   +6 more
doaj   +1 more source

Multiple global change factors and the long‐term dynamics of harmful algal blooms in the North Sea

Limnology and Oceanography, Volume 70, Issue 5, Page 1267-1282, May 2025.
Abstract The North Sea has been identified as an area where the impacts of climate change and de‐eutrophication efforts are already apparent, specifically on phytoplankton communities, with shifts in biogeography, altered species composition, and increased biomass of harmful algal bloom (HAB) species.
Karen M. Brandenburg, Julian Merder, Andrea Budiša, Anne Marie Power, Catharina J. M. Philippart, Anna M. Michalak, Tim J. van den Broek, Dedmer B. Van de Waal   +7 more
wiley   +1 more source

The fragmentation pathways of azaspiracids elucidated using positive nanospray hybrid quadrupole time-of-flight (QqTOF) mass spectrometry

, 2004
The azaspiracids, AZA1, AZA2 and AZA3, are the predominant shellfish toxins responsible for the human toxic syndrome, azaspiracid poisoning. Collision induced dissociation (CID) mass spectra were generated for azaspiracids using nano-electrospray ...
Sierra, Mónica Díaz, Lehane, Mary, Furey, Ambrose, James, Kevin J., Hamilton, Brett   +4 more
core   +1 more source

Environmental and Biological Factors of Relevance to Shellfish Production in Northern Ireland: Insights From 20 Years of Regional Monitoring Data

Reviews in Aquaculture, Volume 17, Issue 1, January 2025.
ABSTRACT A historical analysis was conducted to evaluate monitoring data in the coastal and estuarine waters of Northern Ireland over the 20‐year period between 2001 and 2022 to identify current and emerging concerns and gaps in analysis relative to the sustainability of the aquaculture industry.
Diana Senovilla‐Herrero, Yuwei Chen, Chaoran Liu, Subbulakshmi Suresh, Heather Moore, April McKinney, Matt Service, Sarah Helyar, Lenka Mbadugha, Katrina Campbell   +9 more
wiley   +1 more source

Two novel azaspiracids from Azadinium poporum, and a comprehensive compilation of azaspiracids produced by Amphidomataceae, (Dinophyceae) [PDF]

, 2019
Two novel azaspiracids (AZA) with a molecular mass of 869 Da were found in Pacific strains of Azadinium poporum and characterized by tandem mass spectrometry and high resolution mass spectrometry (HRMS). One compound, AZA-42, was found in Az.
Gu, Haifeng, Tillmann, Urban, Tebben, Jan, Trefault, Nicole, Krock, Bernd   +4 more
core   +1 more source

Sublethal exposure of eastern oyster Crassostrea virginica to the goniodomin‐producing dinoflagellate Alexandrium monilatum: Fate of toxins, histopathology, and gene expression

Journal of Aquatic Animal Health, Volume 36, Issue 4, Page 374-394, December 2024.
Abstract Objective The dinoflagellate Alexandrium monilatum forms blooms during summer in tributaries of the lower Chesapeake Bay. Questions persist about the potential for A. monilatum to negatively affect aquatic organisms. Its main toxin, goniodomin A (GDA), a polyketide macrolide, has been shown to have adverse effects on animals, for example ...
Sylvain Gaillard, Hamish J. Small, Ryan B. Carnegie, Thomas M. Harris, Simon Tanniou, Damien Réveillon, Philipp Hess, Kimberly S. Reece   +7 more
wiley   +1 more source

Selective Extraction and Purification of Azaspiracids from Blue Mussels (Mytilus edulis) Using Boric Acid Gel

, 2018
Azaspiracids belong to a family of more than 50 polyether toxins originating from marine dinoflagellates such as Azadinium spinosum. All of the azaspiracids reported thus far contain a 21,22-dihydroxy group.
Jane Kilcoyne (1450081), Sabrina D. Giddings (1595293), Kjersti E. Løvberg (1326714), Pearse McCarron (1450078), Ingunn A. Samdal (1326717), Christopher O. Miles (1288326), Thor Waaler (4949197), Thomas Rundberget (1288323)   +7 more
core   +1 more source

Field monitoring of copepodamides using a new application for solid phase adsorption toxin tracking

Limnology and Oceanography: Methods, Volume 22, Issue 12, Page 877-888, December 2024.
Abstract Chemical signaling is ubiquitous in the marine environment. Plankton rely on chemical signals to find mates, hunt prey, and respond to threats, and these small‐scale interactions can propagate into community‐wide cascades and large‐scale ecological changes. The chemical signaling exchange in the open ocean is poorly understood, and fundamental
Aubrey Trapp, Erik Selander, Melissa Peacock, Raphael M. Kudela   +3 more
wiley   +1 more source