Results 31 to 40 of about 89,325 (290)

HARMFUL ALGAL BLOOMS IN THE MEDITERRANEAN SEA: EFFECTS ON HUMAN HEALTH.

Euromediterranean Biomedical Journal, 2013
A harmful algal bloom (HAB) is defined as a bloom that has deleterious effects on plants, animals or humans. Marine algal toxins are responsible for an array of human illnesses associated with consumption of seafood or exposure to aerosolized toxins ...
Margherita Ferrante
doaj   +1 more source

Presence of Cyanotoxins in a Mexican Subtropical Monomictic Crater Lake

Applied Sciences, 2020
Microcystins (MCs) produced by cyanobacteria are a ubiquitous worldwide problem because some MCs can cause tumor formation and are hepatotoxic. In the Santa María del Oro crater lake, Mexico, plankton scums are recurrent during most of the year and are ...
José Jesús Bustillos-Guzmán, Andrew Turner, Oscar Ubisha Hernández-Almeida, Christine Johanna Band-Schmidt, Carlos Alberto Romero-Bañuelos, Francisco Eduardo Hernández-Sandoval, Erick Julián Núñez-Vázquez, Yolotzin Apatzingan Palomino-Hermosillo   +7 more
doaj   +1 more source

Changes in Toxin Production, Morphology and Viability of Gymnodinium catenatum Associated with Allelopathy of Chattonella marina var. marina and Gymnodinium impudicum

Toxins, 2022
Allelopathy between phytoplankton organisms is promoted by substances released into the marine environment that limit the presence of the dominating species. We evaluated the allelopathic effects and response of cell-free media of Chattonella marina var.
Leyberth José Fernández-Herrera, Christine Johanna Band-Schmidt, Tania Zenteno-Savín, Ignacio Leyva-Valencia, Claudia Judith Hernández-Guerrero, Francisco Eduardo Hernández-Sandoval, José Jesús Bustillos-Guzmán   +6 more
doaj   +1 more source

Biosynthesis and Molecular Genetics of Polyketides in Marine Dinoflagellates

Marine Drugs, 2010
Marine dinoflagellates are the single most important group of algae that produce toxins, which have a global impact on human activities. The toxins are chemically diverse, and include macrolides, cyclic polyethers, spirolides and purine alkaloids ...
Ralf Kellmann, Anke Stüken, Russell J. S. Orr, Helene M. Svendsen, Kjetill S. Jakobsen   +4 more
doaj   +1 more source

Aptamer Sensor Based on Hybrid Chain Reaction and CRISPR-Cas9 System for STX Detection

Chemosensors, 2023
In recent years, pollution incidents caused by red tide occur frequently, and the red tide biotoxins brought by it make the food safety problem of seafood become a difficult problem to be solved urgently, which has caused great damage to the mariculture ...
Qinguo Zhao, Guizhen Li, Xuemei Li
doaj   +1 more source

LC-HRMS Profiling of Paralytic Shellfish Toxins in Mytilus galloprovincialis after a Gymnodinium catenatum Bloom [PDF]

, 2022
Saxitoxin and its more than 50 analogues are a group of naturally occurring neurotoxins collectively designated as paralytic shellfish toxins (PSTs).
Lage, Sandra, Canario, Adelino, Costa, Pedro Reis, Reis Costa, Pedro, Adelino V. M. Canário, Da Silva, José P., Pedro Reis Costa, Sandra Lage, Canário, Adelino V. M., José P. Da Silva, Da Silva, José Paulo   +10 more
core   +1 more source

Structural basis for divergent C–H hydroxylation selectivity in two Rieske oxygenases

Nature Communications, 2020
Rieske oxygenases are iron-dependent enzymes that catalyse C–H mono- and dihydroxylation reactions. Here, the authors characterise two cyanobacterial Rieske oxygenases, SxtT and GxtA that are involved in the biosynthesis of paralytic shellfish toxins and
April L. Lukowski, Jianxin Liu, Jennifer Bridwell-Rabb, Alison R. H. Narayan   +3 more
doaj   +1 more source

Tetrodotoxin and paralytic shellfish toxins in Philippine crabs.

Agricultural and Biological Chemistry, 1986
The frequent occurrence of lethal specimens of Zosimus aeneus and Atergatis floridus on southern Negros Island, Philippines, was confirmed by mouse lethality tests. Among eight specimens of Z. aeneus analyzed by fluorometric liquid chromatography, tetrodotoxin and its derivatives were dominant in five indicating the possible involvement of tetrodotoxin
YASUMURA, Daisuke, OSHIMA, Yasukatsu, YASUMOTO, Takeshi, ALCALA, Angel C., ALCALA, Lawton C.   +4 more
openaire   +2 more sources

Acute Toxicities of the Saxitoxin Congeners Gonyautoxin 5, Gonyautoxin 6, Decarbamoyl Gonyautoxin 2&3, Decarbamoyl Neosaxitoxin, C-1&2 and C-3&4 to Mice by Various Routes of Administration

Toxins, 2017
Paralytic shellfish poisoning results from consumption of seafood naturally contaminated by saxitoxin and its congeners, the paralytic shellfish toxins (PSTs).
Andrew I. Selwood, Craig Waugh, David T. Harwood, Lesley L. Rhodes, John Reeve, Jim Sim, Rex Munday   +6 more
doaj   +1 more source

C–H Hydroxylation in Paralytic Shellfish Toxin Biosynthesis [PDF]

Journal of the American Chemical Society, 2018
The remarkable degree of synthetic selectivity found in Nature is exemplified by the biosynthesis of paralytic shellfish toxins such as saxitoxin. The polycyclic core shared by saxitoxin and its relatives is assembled and subsequently elaborated through the installation of hydroxyl groups with exquisite precision that is not possible to replicate with ...
April L. Lukowski, Duncan C. Ellinwood, Meagan E. Hinze, Ryan J. DeLuca, J. Du Bois, Sherwood Hall, Alison R. H. Narayan   +6 more
openaire   +2 more sources