Results 61 to 70 of about 6,634 (215)

Molecular Mechanisms of Algicidal Bacteria in Controlling Harmful Algal Blooms: Advances in Bacteria‐Algae Interactions

Environmental Microbiology Reports, Volume 18, Issue 2, April 2026.
This review elucidates the molecular mechanisms of algicidal bacteria, highlighting critical behaviours like chemotaxis, quorum sensing and extracellular vesicle release. It details how these actions disrupt algal cellular integrity, photosynthesis and calcium homeostasis, providing a theoretical foundation for controlling harmful algal blooms ...
Jiaxin Wang, Binfu Xu, Lixing Huang
wiley   +1 more source

Guanadinium toxins and their interactions with voltage-gated sodium ion channels [PDF]

, 2017
Guanidinium toxins, such as saxitoxin (STX), tetrodotoxin (TTX) and their analogs, are naturally occurring alkaloids with divergent evolutionary origins and biogeographical distribution, but which share the common chemical feature of guanidinium ...
Cembella, Allan, Duran, Lorena
core   +2 more sources

Marine Algal Toxins and Public Health: Insights from Shellfish and Fish, the Main Biological Vectors

Marine Drugs
Exposure to toxigenic harmful algal blooms (HABs) can result in widely recognized acute poisoning in humans. The five most commonly recognized HAB-related illnesses are diarrhetic shellfish poisoning (DSP), paralytic shellfish poisoning (PSP), amnesic ...
Kuan-Kuan Yuan, Hong-Ye Li, Wei-Dong Yang   +2 more
doaj   +1 more source

Liquid Chromatographic-Fluorometric Analysis of Paralytic Shellfish Toxins

Agricultural and Biological Chemistry, 1984
Alkaline oxidation of paralytic shellfish toxins with ten-butyl hydroperoxide yielded highly fluorescent derivatives. Even gonyautoxins I and IV and neosaxitoxin, which were nonfluorescing by previously proposed hydrogen peroxide oxidations, were successfully converted to fluorescent compounds.
Yasukatsu OSHIMA, Makoto MACHIDA, Kazuo SASAKI, Yoko TAMAOKI, Takeshi YASUMOTO   +4 more
openaire   +2 more sources

Ingestion of Alexandrium pacificum Cysts by a Deposit Feeder: An Option for Ecosystem‐Based Approach Benefiting Aquaculture and Coastal Communities?

New Zealand Journal of Marine and Freshwater Research, Volume 60, Issue 1, March 2026.
Harmful algal blooms caused by the paralytic shellfish toxin‐producing species Alexandrium pacificum have increased in recent years in one of the most important aquaculture regions of New Zealand, the Marlborough Sounds. Reoccurring blooms have created large cysts beds in the sediments throughout the sounds. In this region, large populations of the sea
Leonardo N. Zamora, Kirsty F. Smith, Jacqui Stuart, D. Tim Harwood, Shenae L. Wales, Emillie M. F. Passfield, Lincoln Mackenzie   +6 more
wiley   +1 more source

Human intoxication with paralytic shellfish toxins: Clinical parameters and toxin analysis in plasma and urine

Biological Research, 2005
This study reports the data recorded from four patients intoxicated with shellfish during the summer 2002, after consuming ribbed mussels (Aulacomya ater) with paralytic shellfish toxin contents of 8,066 ± 61.37 mg/100 gr of tissue.
CARLOS GARCÍA, MARCELO LAGOS, DOMINIQUE TRUAN, KARINNA LATTES, OMAR VÉJAR, BEATRIZ CHAMORRO, VERÓNICA IGLESIAS, DARÍO ANDRINOLO, NÉSTOR LAGOS   +8 more
doaj  

Grazer‐induced bioluminescence and toxicity in marine dinoflagellates

Limnology and Oceanography, Volume 70, Issue 12, Page 3769-3783, December 2025.
Abstract Marine copepods are the most abundant multicellular zooplankton in the global oceans. They imprint their surrounding waters with a unique bouquet of chemical compounds, including polar lipids such as copepodamides. Prey organisms can detect copepodamides and respond by inducing defensive traits including bioluminescence, toxin production ...
Paula Gonzalo‐Valmala, Milad Pourdanandeh, Sandra Lage, Erik Selander   +3 more
wiley   +1 more source

Paralytic shellfish poison algal biotoxins: Sardinia report 2002-2011 and non-compliance management

Italian Journal of Food Safety, 2013
Several microalgae of the genus Alexandrium (Alexandrium minutum and Alexandrium catenelle) can produce an algal biotoxin, the paralytic shellfish poison (PSP) that can be accumulated in the shellfish edible tissues making them hazardous to the consumer ...
Giuseppa Lorenzoni, Igor Arras, Giovanna Sanna, Pietro Delogu, Alessandro Mudadu, Antonio Piras, Antonio Mura, Edoardo Marongiu, Sebastiano Virgilio   +8 more
doaj   +1 more source

Changing Trends in Paralytic Shellfish Poisonings Reflect Increasing Sea Surface Temperatures and Practices of Indigenous and Recreational Harvesters in British Columbia, Canada

Marine Drugs, 2021
Paralytic shellfish poisoning (PSP) occurs when shellfish contaminated with saxitoxin or equivalent paralytic shellfish toxins (PSTs) are ingested. In British Columbia, Canada, documented poisonings are increasing in frequency based on 62 investigations ...
Lorraine McIntyre, Aroha Miller, Tom Kosatsky   +2 more
doaj   +1 more source

Comparative paralytic shellfish toxin accumulation in three important Aotearoa New Zealand marine invertebrate species: kina (Evechinus chloroticus), pāua (Haliotis iris) and hohehohe (Panopea zelandica)

New Zealand Journal of Marine and Freshwater Research, Volume 59, Issue 5, Page 1252-1264, December 2025.
ABSTRACT This study investigated the potential for paralytic shellfish toxin (PST) accumulation in three of Aotearoa New Zealand's (NZ) taonga seafood species: kina (urchin; Evechinus chloroticus), pāua (abalone; Haliotis iris) and hohehohe (geoduck; Panopea zelandica) in laboratory exposures to the dinoflagellate Alexandrium pacificum.
Hannah Greenhough, Anne Rolton, Kirsty F. Smith, Laura Biessy, Andrew I. Selwood   +4 more
wiley   +1 more source