Nutrient-driven regulation of saxitoxin gene expression and toxin production in Raphidiopsis raciborskii (Cyanobacteria). [PDF]
J PhycolAbstract Raphidiopsis raciborskii is a diazotrophic cyanobacterium, globally distributed in aquatic environments and known for forming toxic blooms, thereby affecting ecosystem services. South American strains are producers of saxitoxins, potent neurotoxins harmful to humans and animals.
Zare M +3 more
europepmc +2 more sources
Saxitoxin linked to deaths of northern fur seals in the Southeast Bering Sea. [PDF]
Mar Mamm SciABSTRACT In August 2024, a northern fur seal mortality event was observed on St. Paul Island, AK in the southeast (SE) Bering Sea. Ten seals in good body condition were found dead along with large accumulations of dead fish on Benson Beach located on St. Paul Island.
Lefebvre KA +18 more
europepmc +2 more sources
Toxins, 2017 The cyanobacterium Aphanizomenon gracile is the most widely distributed producer of the potent neurotoxin saxitoxin in freshwaters. In this work, total and extracellular saxitoxin and the transcriptional response of three genes linked to saxitoxin ...
Samuel Cirés +3 more
doaj +1 more source
Paralytic Shellfish Toxins of Pyrodinium bahamense (Dinophyceae) in the Southeastern Gulf of Mexico
Toxins, 2022 In September and November 2016, eight marine sampling sites along the coast of the southeastern Gulf of Mexico were monitored for the presence of lipophilic and hydrophilic toxins.
Erick J. Núñez-Vázquez +6 more
doaj +1 more source
Structure of the saxiphilin:saxitoxin (STX) complex reveals a convergent molecular recognition strategy for paralytic toxins. [PDF]
, 2019 Dinoflagelates and cyanobacteria produce saxitoxin (STX), a lethal bis-guanidinium neurotoxin causing paralytic shellfish poisoning. A number of metazoans have soluble STX-binding proteins that may prevent STX intoxication.
Du Bois, J +4 more
core +2 more sources
Behavioral alterations induced by repeated saxitoxin exposure in drinking water
Journal of Venomous Animals and Toxins including Tropical Diseases, 2016 Background Blooms of the saxitoxin-producing cyanobacterium Cylindrospermopsis raciborskii have been contaminating drinking water reservoirs in Brazil for many years.
Felipe Diehl +4 more
doaj +1 more source
Phytoplankton Community and Algal Toxicity at a Recurring Bloom in Sullivan Bay, Kabetogama Lake, Minnesota, USA [PDF]
, 2019 Kabetogama Lake in Voyageurs National Park, Minnesota, USA suffers from recurring late summer algal blooms that often contain toxin-producing cyanobacteria.
Christensen, Victoria G. +4 more
core +2 more sources
Toxins, 2023 Marine heatwaves (MHWs) have doubled in frequency since the 1980s and are projected to be exacerbated during this century. MHWs have been shown to trigger harmful algal blooms (HABs), with severe consequences to marine life and human populations.
Vanessa M. Lopes +11 more
doaj +1 more source
Risks for public health related to the presence of tetrodotoxin (TTX) and TTX analogues in marine bivalves and gastropods [PDF]
, 2017 Peer reviewedPublisher ...
EFSA Panel on Contaminants in the Food Chain (CONTAM)
core +1 more source
Outbreak of a neurotoxic side-gilled sea slug (Pleurobranchaea sp.) in Argentinian coasts [PDF]
, 2015 Since 2009 we have been registering the outbreak of an unknown side-gilled sea slug of the genus Pleurobranchaea in coastal waters of Argentina, southwestern Atlantic Ocean.
Farias, Nahuel Emiliano +2 more
core +1 more source