microcystin

(redirected from Microcystins)

microcystin

(mī-krō-sis'tin),
Those compounds produced by Microcystis aeruginosa: potent hepatotoxins and probable tumor promoters.

microcystin

Any toxic, cyclic, non-ribosomal peptide produced by cyanobacteria, which has anticholinesterase activity or causes severe liver injury through DNA damage by activating endonucleases and inhibiting inhibit protein phosphatases types 1 and 2A. Topical exposure to microcystins causes skin and eye irritation, rhinorrhoea, vertigo and fatigue; parenteral exposure may cause death after initial exposure, often due to intrahepatic haemorrhage and hypovolemic shock. An epidemic of microcystin-related death occurred at a haemodialysis centre in Brazil due to impure water.
References in periodicals archive ?
Bloom conditions and microcystin concentrations vary with time and microcystins can persist for up to two weeks after the bloom has dissipated, officials said.
Harmful blue-green algal blooms and the toxic microcystins that accompany them have been a persistent threat in the lake's western basin but, until this study, bloom-related toxins had not been formally documented and analyzed in the central basin.
Cyanobacteria can produce two primary types of toxins: anatoxins, which cause sudden death due to respiratory paralysis, and microcystins, which lead to liver failure.
Monitoring toxic cyanobacteria and cyanotoxins (microcystins and cylindrospermopsins) in four recreational reservoirs (Khon Kaen, Thailand).
Among the different cyanotoxins, the hepatotoxic microcystins (MC) are considered to be one of the most dangerous groups (De Figueiredo et al.
It can produce toxins such as microcystins and anatoxins that affect people and pets that swim in and drink from the water.
Fluoroprobe was used to determine algal biomass at a coarse taxonomic resolution and used ELISA to test total microcystins of river water samples.
Even when DI is coupled with an ultrafilter, it is unable to remove low molecular weight bacterial by-products such as microcystins (toxins from blue-green algae) that can be deadly to patients.
Microcystins production and antibacterial activity of cyanobacterial strains of Synechocystis, Synechococcus and Romeria from water and coral reef organisms (Brazil)