Results 171 to 180 of about 11,761 (211)

Temporal and spatial dynamics of harmful algal bloom-associated microbial communities in eutrophic Clear Lake, California. [PDF]

Appl Environ Microbiol
Kalra I, Stewart BP, Florea KM, Smith J, Webb EA, Caron DA.   +5 more
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Zooplankton feeding behaviour and survival to toxic and non-toxic cyanobacteria during the seasonal bloom progression of a eutrophic lake

Ntetsika P, Stauffer S, Eyring S, Reyes M, Wang X, Janssen EM, Pomati F.   +6 more
europepmc   +1 more source

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Purification of microcystins

Journal of Chromatography A, 2001
Microcystins are an increasingly important group of bioactive compounds produced by a number of mainly planktonic cyanobacteria. They are a family of cyclic heptapeptides that cause both acute and chronic toxicity. Purified microcystins are utilised in a range of research applications including toxicological and biochemical studies, development of ...
L A, Lawton, C, Edwards
openaire   +2 more sources

Microcystin-LR and chemically degraded microcystin-LR electrochemical oxidation

The Analyst, 2012
Microcystins (MCs) are cyclic hepatotoxic heptapeptides produced by certain strains of freshwater cyanobacteria toxic for humans and animals. The electrochemical behaviour of microcystin-LR (MC-LR) at a glassy carbon electrode (GCE) was investigated using cyclic voltammetry (CV), square wave voltammetry (SWV) and differential pulse voltammetry (DPV ...
Ilanna C, Lopes, Paulina V F, Santos, Victor C, Diculescu, Francisco M P, Peixoto, Mário C U, Araújo, Auro A, Tanaka, Ana Maria, Oliveira-Brett   +6 more
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Microbial Degradation of Microcystins

Chemical Research in Toxicology, 2013
Hepatotoxic microcystins that are produced by freshwater cyanobacteria pose a risk to public health. These compounds may be eliminated by enzymatic degradation. Here, we review the enzymatic pathways for the degradation of these hepatotoxins, some of which are newly discovered processes.
Dariusz, Dziga, Marcin, Wasylewski, Benedykt, Wladyka, Sonja, Nybom, Jussi, Meriluoto   +4 more
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How microcystin‐degrading bacteria express microcystin degradation activity

Lakes & Reservoirs: Science, Policy and Management for Sustainable Use, 2011
AbstractAlkali tolerance and the mechanism of microcystin (MC) degradation were investigated in the MC‐degrading bacterial species, Sphingopyxis sp. C‐1, to better understand the increased MC degradation under the alkaline conditions that arise during the disappearance of water blooms.
Kazuya Shimizu, Hideaki Maseda, Kunihiro Okano, Tomoaki Itayama, Yukio Kawauchi, Rongzhi Chen, Motoo Utsumi, Zhenya Zhang, Norio Sugiura   +8 more
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Methods for determining microcystins (peptide hepatotoxins) and microcystin-producing cyanobacteria

Water Research, 2006
Episodes of cyanobacterial toxic blooms and fatalities to animals and humans due to cyanobacterial toxins (CBT) are known worldwide. The hepatotoxins and neurotoxins (cyanotoxins) produced by bloom-forming cyanobacteria have been the cause of human and animal health hazards and even death.
Lalita N, Sangolkar, Sarika S, Maske, Tapan, Chakrabarti   +2 more
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Distribution of Microcystin-Producing and Non-Microcystin-Producing Microcystis sp. in European Freshwater Bodies: Detection of Microcystins and Microcystin Genes in Individual Colonies

Systematic and Applied Microbiology, 2004
Microcystis is a well-known cyanobacterial genus frequently producing hepatotoxins named microcystins. Toxin production is encoded by microcystin genes (mcy). This study aims (i) to relate the mcy occurrence in individual colonies to the presence of microcystin, (ii) to assess whether morphological characteristics (morphospecies) are related to the ...
Lorena, Via-Ordorika, Jutta, Fastner, Rainer, Kurmayer, Michael, Hisbergues, Elke, Dittmann, Jiri, Komarek, Marcel, Erhard, Ingrid, Chorus   +7 more
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Accurate LC-MS analyses for microcystins using per-15N-labeled microcystins

Analytical and Bioanalytical Chemistry, 2011
Per-(15)N-labeled microcystins were prepared for use as surrogates for accurate liquid chromatography-mass spectrometry analysis. Two strains of Microcystis aeruginosa were cultured in (15)NO(3)-containing TS-15 medium. To change from the incorporation of (14)N to (15)N into all cell components, cells of Microcystis aeruginosa were precultured in Na(15)
Tomoharu, Sano, Hiroo, Takagi, Kimiyo, Nagano, Masataka, Nishikawa, Kunimitsu, Kaya   +4 more
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