نتایج جستجو برای: cyanotoxins
تعداد نتایج: 324 فیلتر نتایج به سال:
Abstract Hunting down the eagle killer: Vacuolar myelinopathy is a neurological disease affecting wildlife — including iconic bald in United States. Its cause has been elusive for decades, but its occurrence linked to cyanobacterium Aetokthonos hydrillicola colonizing invasive aquatic plant Hydrilla verticillata . In recent study, we found that A. produces novel highly toxic biindole alkaloid (...
The phytoplankton community in three small (0.065-0.249 km2) reservoirs in the stepped plateau landscape in the Kinangop area above the Rift Valley floor in Kenya were studied between 1998 and 2000. Approximately 70 species of phytoplankton were identified. The community was dominated by chlorophytes, cyanobacteria and chrysophytes. Diatoms were rare. The phytoplankton assemblage was frequently...
Cyanobacteria are known to produce secondary metabolites which are toxic to mammals, commonly known as “toxins”. These have been described as having neurotoxic, hepatotoxic and dermatotoxic effects, being a hazard also to humans. Cyanobacteria blooms may represent a hazard to aquatic organisms, when cells collapse, releasing cyanotoxins to the water. Toxins, though, have a dramatic influence on...
Cyanobacteria, also known as blue-green algae, are photosynthetic bacteria that can colonize different habitats, including extreme ones. They of great interest to the scientific community, especially because their ability produce cyanotoxins: toxic secondary metabolites potentially harmful organisms when released surface waters.
the presence of cyanobacteria (blue-green algae) is a significant indicator of water quality,having in mind that several genera have the quality of producing cyanotoxins, which are harmful to animals,plants and humans. seven lakes in vojvodina (republic of serbia) were examined in may and september 2007 for cyanobacterial presence and cyanotoxins content, chl a concentration and index of phosph...
Cyanobacteria are highly prevalent in slow-moving and nutrient-rich water bodies due to changing climatic conditions, eutrophication, anthropogenic activities. Toxins of cyanobacterial blooms, i.e., cyanotoxins also increasing at alarming rates freshwater. Several efforts being taken detect using molecular analytical techniques understand their occurrence distribution, however, these studies di...
Harmful cyanobacteria have been an important concern for drinking water quality for quite some time, as they may produce cyanotoxins and odorants. Microcystis and Cylindrospermopsis are two common harmful cyanobacterial genera detected in freshwater lakes and reservoirs, with microcystins (MCs) and cylindrospermopsin (CYN) as their important metabolites, respectively. In this study, two sets of...
Expansion of aquaculture around the world has heavily impacted the environment. Because fertilizers are needed to raise fish, one of the main impacts is eutrophication, which lowers water quality and increases the frequency of algal blooms, mostly cyanobacteria. To evaluate whether the water quality in 30 fishponds in southeastern Brazilian met the requirements of Brazilian legislation, we anal...
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