microcystin content Articles | Environmental XPRT

Toxicity and Microcystin Content of Extracts from a Planktothrix Bloom and Two Laboratory Strains

Abstract : Toxic effects and microcystin content from various extracts of aPlanktothrix agardhiibloom and two different strains ofPlanktothrix agardhii, HUB 076, and NIVA 34 were investigated. Extracts were obtained with solvents of different polarity such as hexane, dichloromethane, methanol, and water. Additionally, different pre-treatments were used to break the cells before extraction. Acute ...

Jan. 8, 2020

By Microbiotests Inc.

Human health risk assessment related to blue-green algae mass development in the Kuibyshev Reservoir

Health risk assessment related to water quality and microcystin contamination of water in the Kuibyshev Reservoir was conducted in August 2012 during the period of algal bloom. The health risk during recreational activity was estimated for potential exposure to extracellular microcystins. Microcystin content in water measured by the indirect competitive ELISA method was in the range from 0.21 ...

Jul. 24, 2015

By IWA Publishing

Effect of environmental factors on allelopathic inhibition of <italic>Microcystis aeruginosa</italic> by berberine

Effect of environmental factors on allelopathic inhibition of Microcystis aeruginosa by berberine

To understand how environmental conditions affect the allelopathic inhibition of toxic Microcystis aeruginosa by berberine, the independent effects of some environmental factors, including temperature, light, and aeration, on the growth and extracellular microcystin (MC) content of M. aeruginosa (FACHB 905) treated with 0.000 and 0.001% (w/v) berberine were investigated. The results ...

Jul. 19, 2013

By IWA Publishing

Microbiotests for Cyanobacterial Toxins Screening

Abstract : The development of massive blooms of cyanobacteria (blue-green algae) in eutrophicated fresh and salt waters is an actual problem in many countries. Moreover, many strains of cyanobacteria produce toxins with a specific mode of action, the most studied being hepatotoxins (such as e.g. microcystin) and neurotoxins (e.g. anatoxin-a). Toxicity testing of crude extracts of cyanobacterial ...

Jan. 7, 2020

By Microbiotests Inc.

Comparison of <italic>Microcystis aeruginosa</italic> (PCC7820 and PCC7806) growth and intracellular microcystins content determined by liquid chromatography–mass spectrometry, enzyme-linked immunosorbent assay anti-Adda and phosphatase bioassay

Comparison of Microcystis aeruginosa (PCC7820 and PCC7806) growth and intracellular microcystins content determined by liquid chromatography–mass spectrometry, enzyme-linked immunosorbent assay anti-Adda and phosphatase bioassay

Cyanobacteria are able to produce several metabolites that have toxic effects on humans and animals. Among these cyanotoxins, the hepatotoxic microcystins (MC) occur frequently. The intracellular MC content produced by two strains of Microcystis aeruginosa, PCC7806 and PCC7820, and its production kinetics during the culture time were studied in order to elucidate the conditions that favour the ...

Mar. 19, 2014

By IWA Publishing

Toxicity and Microcystin Content of Extracts from a Planktothrix Bloom and Two Laboratory Strains

Human health risk assessment related to blue-green algae mass development in the Kuibyshev Reservoir

Effect of environmental factors on allelopathic inhibition of Microcystis aeruginosa by berberine

Microbiotests for Cyanobacterial Toxins Screening

Comparison of Microcystis aeruginosa (PCC7820 and PCC7806) growth and intracellular microcystins content determined by liquid chromatography–mass spectrometry, enzyme-linked immunosorbent assay anti-Adda and phosphatase bioassay

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