Results 31 to 40 of about 114,699 (211)

Use of Myriophyllum aquaticum to inhibit Microcystis aeruginosa growth and remove microcystin-LR

Revista Brasileira de Ciências Ambientais, 2022
Harmful algal blooms are one of the greatest challenges when preserving water sources, especially when involving cyanobacteria such as Microcystis aeruginosa.
Rafael Shinji Akiyama Kitamura, Ana Roberta Soares da Silva, Thomaz Aurelio Pagioro, Lucia Regina Rocha Martins   +3 more
doaj   +1 more source

Biomarkers of prolonged exposure to microcystin-LR in mice [PDF]

Toxicon, 2013
The effects of prolonged exposure to microcystins (MCs) on health are not yet sufficiently understood and this type of poisoning is often undiagnosed. Even though chronic exposure has been linked with liver cancer and alterations have been described in liver damage marker enzymes in exposed populations, there are not profile parameters that indicate ...
Sedan, Daniela Yazmine, Giannuzzi, Leda, Rosso, Lorena, Marra, Carlos Alberto, Andrinolo, Darío   +4 more
openaire   +3 more sources

Epitopes prediction for microcystin-LR by molecular docking

Ecotoxicology and Environmental Safety, 2021
Microcystin-LR (MC-LR) is one of the most worldwide harmful cyanobacterial toxins. A lots of antibodies against MC-LR have been generated and characterized. However, the knowledge about the epitopes of MC-LR was still limited. The objective of this study was to analyze the epitopes of MC-LR and demonstrate the binding mode of MC-LR with its antibody ...
Yuan Liu, Shu Liu, Chongxin Xu, Manman Lin, Yihang Li, Cheng Shen, Ying Liang, Xing Sun, Donglan Wang, Peng Lü, Xianjin Liu   +10 more
openaire   +3 more sources

Biodegradation of [D-Leu1] microcystin-LR by a bacterium isolated from sediment of Patos Lagoon estuary, Brazil

Journal of Venomous Animals and Toxins including Tropical Diseases, 2015
Background Toxic cyanobacterial blooms are recurrent in Patos Lagoon, in southern Brazil. Among cyanotoxins, [D-Leu1] microcystin-LR is the predominant variant whose natural cycle involves water and sediment compartments. This study aimed to identify and
Gilmar AF Lemes, Luiza W Kist, Mauricio R Bogo, João S Yunes   +3 more
doaj   +1 more source

Photorelease of microcystin-LR from resuspended sediments [PDF]

Harmful Algae, 2017
A series of ten photolysis experiments was conducted with sediments exposed to Microcystis sp. blooms to determine if sunlight is capable of mobilizing the biotoxin microcystin-LR (MC-LR) into the water column. There was a net photorelease of MC-LR in irradiated suspensions in all cases relative to dark controls, ranging from 0.4 to 192μgL-1g-1 into ...
Robert J, Kieber, Lindsey M, Hartrey, David, Felix, Coleman, Corzine, G Brooks, Avery, Ralph N, Mead, Stephen A, Skrabal   +6 more
openaire   +2 more sources

Widespread distribution and identification of eight novel microcystins in Antarctic cyanobacterial mats [PDF]

, 2008
The microcystin content and cyanobacterial community structure of Antarctic microbial mat samples collected from 40 ponds, lakes and hydro-terrestrial environments were investigated. Samples were collected from Bratina Island and four of the Dry Valleys;
Puddick, Jonathan, Mountfort, Douglas O., Holland, Patrick T., Cary, S. Craig, Wood, Susanna A., Selwood, Andrew I.   +5 more
core   +1 more source

Decomposition of microcystin-LR by Fenton oxidation

Toxicon, 2001
A novel and promising method of microcystin-LR (mcyst-LR) degradation is reported. The decomposition of this cyanobacterial toxin using Fenton reagent has been observed with very low initial concentrations of H2O2 and Fe2+ (Fe3+) in the reaction mixture. Mcyst-LR was isolated from a laboratory culture of Microcystis aeruginosa PCC 7813.
Gajdek, Piotr, Lechowski, Zbigniew, Bochnia, Tadeusz, Kępczyński, Mariusz   +3 more
openaire   +3 more sources

The Effects of Temperature on Microcystin-LR Toxicity to Bosmina Longirostris: Food Web Implications in the Chowan River, North Carolina

, 2023
In the Chowan River, North Carolina, the frequency of Microcystis aeruginosa blooms has increased over recent years with an average 1.9°C rise in June water temperatures since 1975. Zooplankton are an important trophic link for toxins to move up the food
Jupitz, Madison C., NC DOCKS at East Carolina University   +1 more
core  

Studies on the immunosuppressive effects and detection of naturally-occuring toxins [PDF]

, 2012
Episodes of toxin-producing phytoplankton occur worldwide, causing both animal and human fatalities. Toxicity occurs through consumption of phycotoxins, including azaspiracid, which accumulate in filter-feeding shellfish. Microcystins are hepatotoxins,
Stack, Edwina C.
core   +2 more sources

UM BREVE ESTUDO SOBRE A INATIVAÇÃO DA TOXINA MICROCISTINA-LR POR IRRADIAÇÃO GAMA E ANÁLISE POR METODOLOGIAS HPLC-SPE ONLINE E ESPECTROMETRIA DE MASSAS [PDF]

Química Nova
Many of the toxins produced by cyanobacteria have multiple variants, some being more toxic than others. Microcystins are a group of toxins produced by cyanobacteria that have approximately 100 variants with LD50 (lethal dose 50%) values ranging from 25 ...
Paulo C. Brabo, Antônio L. S. Lima, Alexandre L. A. Santos   +2 more
doaj   +2 more sources