Microbial diversity and toxin risk in tropical freshwater reservoirs of Cape Verde

@article{SemedoAguiar2018MicrobialDA,
  title={Microbial diversity and toxin risk in tropical freshwater reservoirs of Cape Verde},
  author={Ana P Semedo-Aguiar and Jos{\'e} B. Pereira-Leal and R. B. Leite},
  journal={bioRxiv},
  year={2018}
}
The Cape Verde islands are part of the African Sahelian arid belt that possesses an irregular rainy season between August and October. This erratic rain pattern has prompted the need for water reservoirs, now critical for the country’s sustainability. Worldwide, freshwater cyanobacterial blooms are increasing in frequency due to global climate change and eutrophication of water bodies, particularly in reservoirs. To date there have been no risk assessments of cyanobacterial toxin production in… Expand
1 Citations
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References

SHOWING 1-10 OF 117 REFERENCES
Diversity of Microcystis aeruginosa isolates (Chroococcales, Cyanobacteria) from East-African water bodies
TLDR
Only 4 of the 24 isolated strains from East Africa were found to produce microcystins, while oligopeptides belonging to the aeruginosin and cyanopeptolin class were detected in most strains. Expand
Flavobacteria Blooms in Four Eutrophic Lakes: Linking Population Dynamics of Freshwater Bacterioplankton to Resource Availability
TLDR
Both drastic alterations in total Flavobacteria and in community composition of this class significantly correlated with bacterial production, emphasizing that resource availability is an important driver of heterotrophic bacterial succession in eutrophic lakes. Expand
An overview of cyanobacterial bloom occurrences and research in Africa over the last decade.
TLDR
An assessment of the reported blooms found nitrogen concentrations to be higher in the water column of more toxic blooms, validating recent global studies and indicating that phosphorous is not the only factor to be monitored in bloom mitigation. Expand
Occurrence of microcystin‐producing cyanobacteria in Ugandan freshwater habitats
TLDR
It is concluded that Microcystis is the major MC‐producer in Ugandan freshwater. Expand
Seasonal dynamics and toxicity of Cylindrospermopsis raciborskii in Lake Guiers (Senegal, West Africa).
TLDR
Principal component analysis applied to environmental and phytoplankton data showed that high C. raciborskii biomasses were mainly related to high temperature and water column stability, but the limited number of isolates studied, and the occurrence of toxic and nontoxic clones in natural cyanobacterial populations, mean that it cannot conclude that there is no C. raceskii-associated health risk in this drinking water reservoir. Expand
Metagenomic Insights into the Evolution, Function, and Complexity of the Planktonic Microbial Community of Lake Lanier, a Temperate Freshwater Ecosystem
TLDR
This study provides the first comprehensive analysis of the genetic diversity and metabolic potential of a temperate planktonic freshwater community and advances approaches for comparative metagenomics. Expand
The dynamics of toxic Microcystis strains and microcystin production in two hypertrofic South African reservoirs
TLDR
Water-surface temperature correlated strongly with microcystin concentration, mcyE and mcyB copy number, which suggests that should current environmental trends persist with surface water temperatures continuing to rise and more and more nutrients continued to be loaded into fresh water systems toxic Microcystis may outgrow non-toxic Micro Cystis and synthesise even more microcyStins. Expand
Unveiling Distribution Patterns of Freshwater Phytoplankton by a Next Generation Sequencing Based Approach
TLDR
NGS derived phy toplankton composition differed significantly among lakes with different trophic status, showing that the approach can resolve phytoplankon communities at a level relevant for ecosystem management. Expand
Climate change: links to global expansion of harmful cyanobacteria.
TLDR
Overall, stricter nutrient management will likely be the most feasible and practical approach to long-term CyanoHAB control in a warmer, stormier and more extreme world. Expand
A review of current knowledge on toxic benthic freshwater cyanobacteria--ecology, toxin production and risk management.
TLDR
Current knowledge on benthic cyanobacteria: ecology, toxin-producing species, variables that regulate toxin production and bloom formation, their impact on aquatic and terrestrial organisms and current monitoring and management strategies are reviewed. Expand
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