Results 51 to 60 of about 2,724 (205)

Cyanobacteria and Cyanotoxins in Mediterranean Reservoirs: Ecological Variability, Risks and Implications for Water Quality Assessment

open access: yesEcohydrology, Volume 19, Issue 1, January‐February 2026.
ABSTRACT The increasing demand for freshwater, in combination with climate change and pollution, compromises the quality and quantity of water resources. These pressures have intensified cyanobacterial blooms, including toxic events that threaten human health and aquatic ecosystems. This study complements the objectives of the Water Framework Directive
Ivo Pinto   +6 more
wiley   +1 more source

Successful isolation and cultivation of Cylindrospermopsis raciborskii strains isolated from finished drinking water samples [PDF]

open access: yes, 2019
This work presents the successful establishment of Cylindrospermosis raciborskii cultures isolated from water samples collected at the exit point of Water Treatment Plant (WTP). An intense bloom dominated by filamentous cyanobacteria (Aphanizomenon spp.,
Botelho, Maria João   +4 more
core  

First report about saxitoxins in freshwater fish Hoplias malabaricus through trophic exposure. [PDF]

open access: yes, 2017
Cyanobacterial waterblooms, such as the saxitoxin (STX) producer Cylindrospermopsis raciborskii, have been a worldwide concern in environmental health. However, the bioaccumulation of this neurotoxin in the trophic chain is not completely known.
ASSIS, H. C. S. de   +6 more
core   +1 more source

Grazer‐induced bioluminescence and toxicity in marine dinoflagellates

open access: yesLimnology 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   +3 more
wiley   +1 more source

Marine Toxins as Pharmaceutical Treasure Troves: A Focus on Saxitoxin Derivatives from a Computational Point of View

open access: yesMolecules
This work highlights the significant potential of marine toxins, particularly saxitoxin (STX) and its derivatives, in the exploration of novel pharmaceuticals.
Norma Flores-Holguín   +4 more
doaj   +1 more source

Immunoassays and Biosensors for the Detection of Cyanobacterial Toxins in Water

open access: yesSensors, 2013
Algal blooms are a frequent phenomenon in nearly all kinds of fresh water. Global warming and eutrophication by waste water, air pollution and fertilizers seem to lead to an increased frequency of occurrence.
Michael G. Weller
doaj   +1 more source

Structure of the saxiphilin:saxitoxin (STX) complex reveals a convergent molecular recognition strategy for paralytic toxins. [PDF]

open access: yes, 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

Neurotoxic Alkaloids: Saxitoxin and Its Analogs [PDF]

open access: yesMarine Drugs, 2010
Saxitoxin (STX) and its 57 analogs are a broad group of natural neurotoxic alkaloids, commonly known as the paralytic shellfish toxins (PSTs). PSTs are the causative agents of paralytic shellfish poisoning (PSP) and are mostly associated with marine dinoflagellates (eukaryotes) and freshwater cyanobacteria (prokaryotes), which form extensive blooms ...
Wiese, Maria   +4 more
openaire   +4 more sources

Using environmental DNA to detect Microseira wollei (Oscillatoriales), a benthic harmful algal bloom, in Lake St. Clair (Michigan, USA)

open access: yesLimnology and Oceanography: Methods, Volume 23, Issue 12, Page 949-959, December 2025.
Abstract Microseira wollei is a benthic cyanobacterium that can cause harmful algal blooms (HABs) and often requires management. However, a pervasive challenge for M. wollei management is characterizing the spatial and temporal extent of an impacted area, which can be time and resource intensive.
Alyssa J. Calomeni‐Eck   +3 more
wiley   +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

Home - About - Disclaimer - Privacy