Results 21 to 30 of about 7,582 (221)

First report of detection of microcystins in farmed mediterranean mussels Mytilus galloprovincialis in Thermaikos gulf in Greece

Journal of Biological Research - Thessaloniki, 2021
Background Microcystins are emerging marine biotoxins, produced by potentially toxic cyanobacteria. Their presence has been reported in aquatic animals in Greek freshwater, while data are few in marine environments.
Maria P. Kalaitzidou, Christina I. Nannou, Dimitra A. Lambropoulou, Konstantinos V. Papageorgiou, Alexandros M. Theodoridis, Vangelis K. Economou, Ioannis A. Giantsis, Panagiotis G. Angelidis, Spyridon K. Kritas, Evanthia J. Petridou   +9 more
doaj   +1 more source

Simultaneous Removal of the Freshwater Bloom-Forming Cyanobacterium Microcystis and Cyanotoxin Microcystins via Combined Use of Algicidal Bacterial Filtrate and the Microcystin-Degrading Enzymatic Agent, MlrA

Microorganisms, 2021
Freshwater cyanobacterial blooms (e.g., Microcystis blooms) constitute a major global environmental problem because of their risks to public health and aquatic ecological systems.
Suqin Wang, Siyu Yang, Jun Zuo, Chenlin Hu, Lirong Song, Nanqin Gan, Peng Chen   +6 more
doaj   +1 more source

Further characterization of glycine-containing microcystins from the McMurdo Dry Valleys of Antarctica [PDF]

, 2015
Microcystins are hepatotoxic cyclic peptides produced by several cyanobacterial genera worldwide. In 2008, our research group identified eight new glycine-containing microcystin congeners in two hydro-terrestrial mat samples from the McMurdo Dry Valleys ...
Puddick, Jonathan, David Hamilton, Holland, Patrick T., Susanna A. Wood, Michèle R. Prinsep, Patrick Holland, Wood, Susanna A., Stephen Cary, Stephen Craig Cary, Michèle Prinsep, Jonathan Puddick, Cary, S. Craig, David P. Hamilton, Susanna Wood, Prinsep, Michèle R., Patrick T. Holland, Hamilton, David P.   +16 more
core   +1 more source

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

A Review of Common Cyanotoxins and Their Effects on Fish

Toxics, 2023
Global warming and human-induced eutrophication drive the occurrence of various cyanotoxins in aquatic environments. These metabolites reveal diversified mechanisms of action, encompassing cyto-, neuro-, hepato-, nephro-, and neurotoxicity, and pose a ...
Halina Falfushynska, Nadiia Kasianchuk, Eduard Siemens, Eliana Henao, Piotr Rzymski   +4 more
doaj   +1 more source

Chirality in microcystins [PDF]

Journal of the American Society for Mass Spectrometry, 1994
A new method has been developed to identify the isomers of amino acids by derivatization of the corresponding standards with 1-fluoro-2,4-dinitrophenyl-5-L-alanine amide (Marfey's reagent or FDAA) and analysis of the diastereomeric derivatives by a liquid chromatography-thermospray mass spectrometry technique.
openaire   +2 more sources

High ecological and human health risks from microcystins in vegetable fields in southern China

Environment International, 2019
Frequent cyanobacterial blooms in the eutrophic waters produce a variety of toxins such as the monocyclic heptapeptide microcystins, greatly harming aquatic ecosystems and human health.
Lei Xiang, Yan-Wen Li, Bai-Lin Liu, Hai-Ming Zhao, Hui Li, Quan-Ying Cai, Ce-Hui Mo, Ming-Hung Wong, Qing X. Li   +8 more
doaj   +1 more source

Microcystin-Detoxifying Recombinant Saccharomyces cerevisiae Expressing the mlrA Gene from Sphingosinicella microcystinivorans B9

Microorganisms, 2023
Contamination of water by microcystins is a global problem. These potent hepatotoxins demand constant monitoring and control methods in potable water. Promising approaches to reduce contamination risks have focused on natural microcystin biodegradation ...
Fernando de Godoi Silva, Daiane Dias Lopes, Ronald E. Hector, Maikon Thiago do Nascimento, Tatiana de Ávila Miguel, Emília Kiyomi Kuroda, Gisele Maria de Andrade de Nóbrega, Ken-Ichi Harada, Elisa Yoko Hirooka   +8 more
doaj   +1 more source

Cyanopeptide Mixtures Induce Variable Synergistic and Antagonistic Effects Across Diverse Human Cell Lines. [PDF]

Environ Toxicol
ABSTRACT Cyanobacterial harmful algal blooms (cyanoHABs) threaten human, animal, and ecosystem health and safety through production of toxic secondary metabolites. Microcystis, a cosmopolitan bloom‐forming cyanobacterial genus, is well‐known for producing hepatotoxic microcystins (MCs), but it can produce many other bioactive cyanopeptides, such as ...
Hart LN, Lev KL, Hefferan S, Premathilaka SH, Thenuwara SI, Isailovic D, Sherman DH, Dick GJ.   +7 more
europepmc   +2 more sources

An efficient and affordable laboratory method to produce and sustain high concentrations of microcystins by Microcystis aeruginosa

MethodsX, 2019
Microcystis aeruginosa is a cosmopolitan cyanobacteria that continues to jeopardize freshwater ecosystem services by releasing the hepatotoxin microcystin, which can, in some cases, cause death to aquatic fauna and even humans.
René S. Shahmohamadloo, Xavier Ortiz Almirall, Claire Holeton, Richard Chong-Kit, David G. Poirier, Satyendra P. Bhavsar, Paul K. Sibley   +6 more
doaj   +1 more source