Results 31 to 40 of about 2,725 (182)

Behavioral alterations induced by repeated saxitoxin exposure in drinking water

open access: yesJournal 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

Paralytic shellfish toxins and ocean warming: bioaccumulation and ecotoxicological responses in jujvenile Gilthead Seabream (Sparus aurata) [PDF]

open access: yes, 2019
Warmer seawater temperatures are expected to increase harmful algal blooms (HABs) occurrence, intensity, and distribution. Yet, the potential interactions between abiotic stressors and HABs are still poorly understood from ecological and seafood safety ...
Anacleto, Patrícia   +6 more
core   +1 more source

Facile and Cost-Effective Detection of Saxitoxin Exploiting Aptamer Structural Switching

open access: yesFood Technology and Biotechnology, 2015
A simple method to detect saxitoxin (STX), one of the main components of the paralytic shellfish poison from red tide, has been developed. By using a next generation dye for double-stranded DNA we were able to differentiate fluorescence from STX-binding ...
Karol Alfaro   +3 more
doaj   +1 more source

Toxicogenomic Effects of Dissolved Saxitoxin on the Early Life Stages of the Longfin Yellowtail (Seriola rivoliana)

open access: yesMarine Drugs, 2023
Harmful algal blooms (HABs) can produce a variety of noxious effects and, in some cases, the massive mortality of wild and farmed marine organisms. Some HAB species produce toxins that are released into seawater or transferred via food webs (particulate ...
Colleen Guinle   +4 more
doaj   +1 more source

Gustatory Detection of Tetrodotoxin and Saxitoxin, and Its Competitive Inhibition by Quinine and Strychnine in Freshwater Fishes

open access: yesMarine Drugs, 2011
Fish detect extremely low levels of marine toxins tetrodotoxin (TTX) and saxitoxin (STX) via the specialized gustatory receptor(s). Physiological and pharmacological studies show that receptor(s) for TTX and STX are distinct from those which detect ...
Toshiaki J. Hara
doaj   +1 more source

The cyanobacterial saxitoxin exacerbates neural cell death and brain malformations induced by Zika virus.

open access: yesPLoS Neglected Tropical Diseases, 2020
The northeast (NE) region of Brazil commonly goes through drought periods, which favor cyanobacterial blooms, capable of producing neurotoxins with implications for human and animal health.
Carolina da S G Pedrosa   +17 more
doaj   +1 more source

Growth and Saxitoxin Production by Cylindrospermopsis raciborskii (Cyanobacteria) Correlate with Water Hardness

open access: yesMarine Drugs, 2013
The cosmopolitan and increasing distribution of Cylindrospermopsis raciborskii can be attributed to its ecophysiological plasticity and tolerance to changing environmental factors in water bodies.
Sandra Maria Feliciano de Oliveira e Azevedo   +2 more
doaj   +1 more source

Evolutionary acquisition and loss of saxitoxin biosynthesis in dinoflagellates: The second "core" gene, sxtG [PDF]

open access: yes, 2013
Saxitoxin and its derivatives are potent neurotoxins produced by several cyanobacteria and dinoflagellate species. SxtA is the initial enzyme in the biosynthesis of saxitoxin.
Jakobsen, KS   +3 more
core   +1 more source

Prevalence, Variability and Bioconcentration of Saxitoxin-Group in Different Marine Species Present in the Food Chain

open access: yesToxins, 2017
The saxitoxin-group (STX-group) corresponds to toxic metabolites produced by cyanobacteria and dinoflagellates of the genera Alexandrium, Gymnodinium, and Pyrodinium.
Javiera Oyaneder Terrazas   +2 more
doaj   +1 more source

Gene expression and molecular evolution of sxtA4 in a saxitoxin producing dinoflagellate Alexandrium catenella [PDF]

open access: yes, 2014
Copyright © 2014 Elsevier Ltd. All rights reserved. Dinoflagellates of the genus Alexandrium produce the neurotoxin saxitoxin (STX), responsible for paralytic shellfish poisoning (PSP) and accumulates in marine invertebrates. The recent identification of
Alvin, A   +3 more
core   +1 more source

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