Results 11 to 20 of about 2,784 (221)

Occurrence and Diversity of Cyanotoxins and Retinoid Compounds in Antarctic Microbial Mats: Evidence From James Ross Island. [PDF]

open access: yesEnviron Microbiol Rep
Occurrence and distribution of cyanotoxins and retinoids across different Antarctic ecosystems at James Ross Island. These ecosystems harbour diverse microbial communities dominated by autotrophic cyanobacteria and algae, which can produce hazardous compounds for animals.
Sehnal L   +5 more
europepmc   +2 more sources

Nutrient-driven regulation of saxitoxin gene expression and toxin production in Raphidiopsis raciborskii (Cyanobacteria). [PDF]

open access: yesJ Phycol
Abstract 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

Statewide Intensification of Harmful Algal Blooms Across California Lakes and Reservoirs. [PDF]

open access: yesGeohealth
Abstract Monitoring cyanobacteria is crucial for assessing water quality, safeguarding public health, and understanding ecosystem dynamics impacted by harmful algal blooms. This study explores the potential of satellite remote sensing (SRS) to assess risks of cyanotoxin exposure in California's recreational waters from 2002 to 2011 and 2016 to 2023 ...
Barreto Martinez BN   +3 more
europepmc   +2 more sources

First Toxicological Analysis of the Pufferfish Sphoeroides pachygaster Collected in Italian Waters (Strait of Sicily): Role of Citizens Science in Monitoring Toxic Marine Species

open access: yesAnimals, 2023
Pufferfish (Tetraodontidae) inhabiting the Mediterranean Sea may represent an emerging public health risk due to the possible accumulation of marine neurotoxins such as tetrodotoxin (TTXs) and saxitoxin (STXs) in their tissues.
Chiara Malloggi   +6 more
doaj   +1 more source

Cation-Exchange Resin Applied to Paralytic Shellfish Toxins Depuration from Bivalves Exposed to Gymnodinium catenatum

open access: yesFoods, 2023
The accumulation of marine biotoxins in shellfish and their consumption causes serious food safety problems, threatening human health and compromising the availability of protein-based food.
Joana F. Leal   +4 more
doaj   +1 more source

Cyanotoxins Occurrence in Portugal: A New Report on Their Recent Multiplication

open access: yesToxins, 2020
Historical reports show that in Portugal, cyanotoxins reports were mainly in the Center (cylindrospermopsins) and South (cylindrospermopsins, saxitoxins) regions of the country apart from the well distributed microcystins.
Cristiana Moreira   +3 more
doaj   +1 more source

Microcystin Prevalence throughout Lentic Waterbodies in Coastal Southern California. [PDF]

open access: yes, 2017
Toxin producing cyanobacterial blooms have increased globally in recent decades in both frequency and intensity. Despite the recognition of this growing risk, the extent and magnitude of cyanobacterial blooms and cyanotoxin prevalence is poorly ...
Brown, Jeff   +9 more
core   +3 more sources

A Stereocontrolled Synthesis of (+)-Saxitoxin [PDF]

open access: yesJournal of the American Chemical Society, 2011
A concise stereoselective total synthesis of (+)-saxitoxin is described. A silver(I)-initiated hydroamination cascade constructs the bicyclic guanidinium ion core from a alkynyl bisguanidine. This sequence creates two C-N bonds, one C-O bond, and three rings and forms a single stereoisomer in a single synthetic transformation.
Vasudev R, Bhonde, Ryan E, Looper
openaire   +2 more sources

Latitudinal Variation in the Toxicity and Sexual Compatibility of Alexandrium catenella Strains from Southern Chile

open access: yesToxins, 2021
The bloom-forming toxic dinoflagellate Alexandrium catenella was first detected in southern Chile (39.5–55° S) 50 years ago and is responsible for most of the area’s cases of paralytic shellfish poisoning (PSP).
Camilo Rodríguez-Villegas   +9 more
doaj   +1 more source

Latitudinal Differentiation in the Effects of the Toxic Dinoflagellate Alexandrium spp. on the Feeding and Reproduction of Populations of the Copepod Acartia Hudsonica [PDF]

open access: yes, 2002
Blooms of the dinoflagellate Alexandrium spp. increase in their frequency, toxicity and historical presence with increasing latitude from New Jersey (USA) to the Gaspé peninsula (Canada).
Colin, Sean, Dam, Hans G.
core   +2 more sources

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