Results 101 to 110 of about 11,866 (225)

Tissue distributions and seasonal dynamics of the hepatotoxic microcystins-LR and -RR in two freshwater shrimps, Palaemon modestus and Macrobrachium nipponensis, from a large shallow, eutrophic lake of the subtropical China [PDF]

open access: yes, 2005
So far no information is available on microcystin (MC) contents in shrimps, prawns or crayfish from natural freshwaters. Tissue distributions and seasonal dynamics of the hepatotoxic MC-LR and -RR in two freshwater shrimps, Palaemon modestus and ...
Chen, J   +2 more
core   +1 more source

Determination of Eight Microcystins in Water by Ultra-High Performance Liquid Chromatography-Tandem Mass Spectrometry

open access: yesRenmin Zhujiang, 2022
Microcystins (MCs) are a common class of hepatotoxins mainly produced upon the apoptosis of freshwater blue-green algae and are highly poisonous to human beings and aquatic life.It is of great significance to establish an accurate and rapid detection ...
ZHANG Panwei   +6 more
doaj  

MALDI-TOF mass spectrometry of Cyanobacteria: a global approach to the discovery of novel secondary metabolites [PDF]

open access: yes, 2008
Cyanobacteria (blue-green algae) are a group of ancient prokaryotic organisms dating back between three and four billion years.¹ They have been attributed with oxygenating the earth’s atmosphere² but, since the anthropogenic euthrophication of lakes ...
Prinsep, Michèle R., Puddick, Jonathan
core  

The short-term effect of nitrogen on freshwater cyanobacteria and cyanotoxins

open access: yesFrontiers in Water
Toxic cyanobacterial blooms are a worldwide concern. Nutrients are among the numerous factors that trigger cyanobacterial blooms and the production of cyanotoxins. This study aimed to assess the effect of nitrogen on cyanobacteria and cyanotoxins through
Kim Thien Nguyen Le   +13 more
doaj   +1 more source

Nanofiltration performance to remove microcystins from water for human consumption at a pilot scale [PDF]

open access: yes, 2012
The presence of microcystins (MC) in drinking water reservoirs, even at low concentrations, is a problem for all involved in management and water treatment.
Lucas, Helena   +2 more
core  

Microcystins Exposure and the Risk of Metabolic Syndrome: A Cross-Sectional Study in Central China

open access: yesToxins
A growing body of evidence indicates that microcystins (MCs) exposure may cause metabolic diseases. However, studies exploring the effects of MCs exposure on the risk of metabolic syndrome (MetS) in humans are currently lacking, and the underlying ...
Shuidong Feng   +4 more
doaj   +1 more source

Methods for rapid extraction of microcystin-LR and microcystin-RR

open access: yes浙江大学学报. 农业与生命科学版, 2005
Simple analysis methods using microwave and boiling waterbath to solve the problem for microcystin-LR (MCLR) and microcystin-RR (MCRR) extraction from cyanobacteria cells were studied as a substitute for the traditional solvent extraction methods. Standards were used to confirm the feasibility and efficiency of both methods.
ZHANG Hang-jun   +3 more
openaire   +1 more source

Adsorption of microcystins and anatoxin-a on nanofiltration membranes [PDF]

open access: yes, 2012
This work pretends to study the adsorption of microcystin-LR (MC-LR) and anatoxin-a (ATX-a) on nanofiltration membranes and to understand the adsorption behaviour with the solution chemistry (background natural organic matter (NOM) and in the presence ...
Ribau Teixeira, Margarida   +1 more
core  

Toxigenic Cyanobacteria and Microcystins in a Large Northern Oligotrophic Lake Onego, Russia

open access: yesToxins
Toxigenic cyanobacteria and microcystins in the oligotrophic pelagic zone and mesotrophic bay of Lake Onego—the second largest lake in Europe—were found for the first time. Microscopic analysis revealed that Dolichospermum lemmermannii, D.
Elena Tekanova   +6 more
doaj   +1 more source

Reduction in germination rate and elevation of peroxidase activity in Zea mays>/em> seedlings due to exposure to different microcystin analogues and toxic cell free cyanobacterial crude extract

open access: yesJournal of Applied Botany and Food Quality, 2012
Agricultural crop plants may come into contact with cyanobacterial toxins via spray irrigation with water contaminated with cyanobacteria/cyanobacterial toxins.
S. Pflugmacher
doaj  

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