Results 61 to 70 of about 4,015 (236)

Non-competitive ELISA with broad specificity for microcystins and nodularins

open access: yesAdvances in Oceanography and Limnology, 2017
Simple and cost-effective methods with sufficient sensitivities for preliminary screening of cyanobacterial toxins are in high demand for assessing water quality and safety.
Sultana Akter   +4 more
doaj   +1 more source

Determination of Multiclass Cyanotoxins in Blue-Green Algae (BGA) Dietary Supplements Using Hydrophilic Interaction Liquid Chromatography-Tandem Mass Spectrometry

open access: yesToxins, 2023
In recent years, the consumption of blue-green algae (BGA) dietary supplements is increasing because of their health benefits. However, cyanobacteria can produce cyanotoxins, which present serious health risks.
María del Mar Aparicio-Muriana   +3 more
doaj   +1 more source

Evolution and detection of cyanobacterial hepatotoxin synthetase genes [PDF]

open access: yes, 2007
Mass occurrences (blooms) of cyanobacteria are common in aquatic environments worldwide. These blooms are often toxic, due to the presence of hepatotoxins or neurotoxins. The most common cyanobacterial toxins are hepatotoxins: microcystins and nodularins.
Rantala, Anne
core  

Incorporation of diazotrophically fixed nitrogen by juvenile fish in a coastal sea

open access: yesLimnology and Oceanography, Volume 70, Issue 10, Page 2968-2981, October 2025.
Abstract Nitrogen‐fixing cyanobacterial blooms worldwide have been shown to support production in primary consumers such as zooplankton and benthic invertebrates, but there have been few estimates of how much of the cyanobacterial nitrogen ends up in secondary consumers, such as fish.
John M. Taylor   +3 more
wiley   +1 more source

Determination of microcystins, nodularin, anatoxin-a, cylindrospermopsin, and saxitoxin in water and fish tissue using isotope dilution liquid chromatography tandem mass spectrometry.

open access: yesJournal of Chromatography A, 2019
Cyanobacteria can form dense blooms under specific environmental conditions, and some species produce secondary metabolites known as cyanotoxins, which present significant risks to public health and the environment.
S. Haddad   +6 more
semanticscholar   +1 more source

Assessing the Impacts of Land‐Use Change and Climate Variability on Cyanobacterial Abundance and Toxicity in Shallow Lakes

open access: yesFreshwater Biology, Volume 70, Issue 7, July 2025.
ABSTRACT The global increase in the frequency and intensity of cyanobacteria blooms has been widely attributed to changes in land‐use practices and climate variability, yet little is known of how toxicity has varied historically relative to cyanobacteria abundance.
David A. Hatton   +8 more
wiley   +1 more source

Towards a Better Quantification of Cyanotoxins in Fruits and Vegetables: Validation and Application of an UHPLC-MS/MS-Based Method on Belgian Products

open access: yesSeparations, 2022
Vegetables and fruits can potentially accumulate cyanotoxins after water contaminated with cyanobacteria is used for irrigation. We developed and validated an analytical method to quantify eight microcystin congeners (MCs) and nodularin (NOD) using ultra
Wannes Hugo R. Van Hassel   +3 more
doaj   +1 more source

Rapid purification of the peptide toxins microcystin-LR and nodularin [PDF]

open access: yesFEMS Microbiology Letters, 1990
An isolation procedure was developed to provide within one day microcystin-LR, a cyclic heptapeptide toxin from Microcystis aeruginosa PCC 7806. After ODS (octadecylsilyl) solid phase extraction, the crude toxin fraction was chromatographed using a strong anion exchange column. The toxin was eluted with 0.02 M ammonium bicarbonate.
C, Martin   +4 more
openaire   +2 more sources

Rekombination hybrider Megasynthasen als Schlüssel für die Evolution metabolischer Diversität in Cyanobakterien

open access: yesAngewandte Chemie, Volume 137, Issue 26, June 24, 2025.
Natürliche Kombinatorik: Die evolutionäre Rekombination und Anpassung von drei cyanobakteriellen Biosynthese‐Genclustern führte zur Entstehung von Minutumamiden, einer neuen Familie von Peptid‐Polyketid‐Hybriden. Mittels retro‐evolutionärer Analyse gelang die Entdeckung des Nostopeptolids KVJ3, einem evolutionären Vorfahren, der die Biosynthese von ...
Keishi Ishida   +6 more
wiley   +1 more source

Mixing and Matching of Hybrid Megasynthases is a Hub for the Evolution of Metabolic Diversity in Cyanobacteria

open access: yesAngewandte Chemie International Edition, Volume 64, Issue 26, June 24, 2025.
Natural combinatorics: Evolutionary mixing and matching of three cyanobacterial biosynthetic gene clusters resulted in the emergence of minutumamides, a novel family of peptide‐polyketide hybrids. Retro‐evolutionary analysis led to the discovery of nostopeptolide KVJ3, an evolutionary ancestor that links nostopeptolide and minutumamide biosynthesis and
Keishi Ishida   +6 more
wiley   +1 more source

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