Microcystis

Microcystis

a genus of the cyanobacteria; produces a peptide toxin, microcystin, which causes acute liver necrosis. Includes M. aeruginosa, M. flosaquae (M. toxica, Anacystis cyanea), M. viridis (Anacystis). Called also Anacystis, Gloeotrichia.
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ABSTRACT In vivo experiments were conducted with laboratory cultures of toxic Microcystis aeruginosa, to assess the potential impacts of microcystins (MC) on the immune system of the freshwater zebra mussel Dreissena polymorpha.
The goal of this project is to (i) determine how (and if) Microcystis is specialized into different ecologically and genetically distinct clusters, (ii) to track how the Microcystis populations (or clusters) respond to environmental changes (pH, temperature, pollution from fertilizer runoff) and biological factors (viruses that prey on bacteria).
The 2008 BiOp explained that the CVP and SWP operations would likely have indirect effects--such as limiting food supply, increasing pollution and contaminants, and bolstering other stressors including predation, aquatic macrophytes, and microcystis.
In Europe, the most common cyanobacteria gena are Microcystis, Anabaena, Aphanizomenon, Oscillatoria, Nodularia and Nostoc.
According to Scheffer (1998), Microcystis blooms are not common in shallow well-mixed lakes (evidently, he considered very shallow Limnothrix-type lakes).
That year, when water was released from Lake Okeechobee to both coasts of Florida in great amounts, a toxic cyanobacterium known as Microcystis (micro = small, cystis = cyst) was also released from the Lake causing significant problems.
Blooms of Microcystis did not return to the western end of Lake Erie and Maumee Bay until late July of 2011, a month later than 2010.
13), (14) It is also important to mention that the potential presence of microcystin does not come from AFA, but rather from co-occurring Microcystis spp.
Microcystis viridis was able to attain similar cell densities on both ammonia and nitrate.