Results 61 to 70 of about 13,733 (224)
Environmental Toxicology, Volume 41, Issue 10, Page 807-821, October 2026.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 ...
Lauren N. Hart +7 more
wiley +1 more source
Antimycobacterial and cytotoxicity activity of microcystins [PDF]
Journal of Venomous Animals and Toxins including Tropical Diseases, 2015 The present work aimed to evaluate the antimycobacterial activity and cytotoxicity of Microcystis aeruginosa toxins, the MC-LR variant and purified extract of [D-Leu(1)] microcystin-LR.The antimicrobial activity of M. aeruginosa extract and microcystin was evaluated by resazurin microtiter assay against Mycobacterium tuberculosis, M.
Ramos, Daniela Fernandes +6 more
openaire +5 more sources
Environmental Microbiology Reports, Volume 18, Issue 5, October 2026.A seasonal time series metatranscriptome dataset suggests that neutralising hydrogen peroxide in Microcystis blooms requires a complex division of labour that is further complicated by seasonality and bloom development. ABSTRACT Cyanobacterial harmful algal blooms (cHABs) are expanding globally and often involve toxin‐producing species such as ...
Chelsea E. Donovan +9 more
wiley +1 more source
Phytotoxicity associated to microcystins: a review [PDF]
Brazilian Journal of Biology, 2014 Microcystins (MC) are the most studied toxins of cyanobacteria since they are widely distributed and account for several cases of human and animal poisoning, being potent inhibitors of the serine/threonine protein phosphatases 1 (PP1) and 2A (PP2A). The phosphatases PP1 and PP2A are also present in plants, which may also suffer adverse effects due to ...
Bittencourt-Oliveira, M. C. +6 more
openaire +7 more sources
Physiological and biochemical microcystin-RR toxicity to the Synechococcus elongatus
, 2004 Freshwater Microcystis may form dense blooms in eutrophic lakes. It is known to produce a family of related cyclic hepatopeptides (microcystins, MC) that constitute a threat to aquatic ecosystems.
Li, DH +3 more
core +1 more source
Variations in the Microcystin Content of Different Fish Species Collected from a Eutrophic Lake
Toxins, 2013 Microcystins produced from cyanobacteria can accumulate in fish tissues. Liquid chromatography coupled with tandem quadrupole mass spectrometry (LC-MS/MS) is an attractive alternative to immunoassays for the determination of low concentrations of ...
Mylynda Shaskus +5 more
doaj +1 more source
How Epitranscriptomic Machinery Senses Environmental Cues
Advanced Biology, Volume 10, Issue 9, September 2026.Exogenous exposures, microenvironmental signals, and intracellular metabolic or redox states can alter RNA‐modification machinery through catalytic chemistry, signaling‐dependent PTMs, compartmental redistribution, or changes in abundance and composition.
Shayan Jalali, Ehsan Pashay Ahi
wiley +1 more source
First report of microcystins in Taiwan [PDF]
Toxicon, 1998 This is the first report on microcystins from Microcystis aeruginosa Kützing in Taiwan. A total of nine strains of cyanobacteria have been isolated from eutrophic aquaculture ponds and water reservoirs. By mouse toxicity assay, six of the nine strains had LD100 in the range of 25-100 mg per kg mouse for dried bacterial mass. Microcystin-LR and -RR were
T H, Lee, Y M, Chen, H N, Chou
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Biological Reviews, Volume 101, Issue 4, Page 1904-1921, August 2026.ABSTRACT One of the major subfields of chemical ecology is the study of toxins and how they mediate interactions between organisms. Toxins produced by harmful algae (phycotoxins) impact a wide variety of organisms connected to the marine food web. Significant research efforts have thus aimed to identify the ecological and evolutionary drivers behind ...
Milad Pourdanandeh, Erik Selander
wiley +1 more source
Adsorption of microcystins by carbon nanotubes [PDF]
Chemosphere, 2006 The production of cyanobacterial toxins microcystins (MCs) by cyanobacterial bloom which may promote the growth of tumor in human liver is a growing environmental problem worldwide. In this paper, the adsorption of MC-RR and LR, which were extracted from cyanobacterial cells in Dianchi Lake in China, by carbon nanotubes (CNTs), wood-based activated ...
Hai, Yan +5 more
openaire +2 more sources