ArticleApplied and environmental microbiology2008
Temporal variations in the dynamics of potentially microcystin-producing strains in a bloom-forming Planktothrix agardhii (Cyanobacterium) population.
Article in Applied and environmental microbiology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.
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Who cites it
36 citing papers in PubMed, 127 citations in OpenAlex.
- Co-Occurrence of Toxic Bloom-Forming CyanobacteriaToxins · 2025Article
- Cyanobacteria gene expression in response to environmental stress and seasonal changes.World journal of microbiology & biotechnology · 2025Article
- Polyphasic Approach and Potential Cyanotoxin Production byInternational journal of microbiology · 2024Article
- Interactions between chytrids cause variable infection strategies on harmful algal bloom forming species.Harmful algae · 2023Article
- Cyanobacteria and Their Metabolites in Mono- and Polidominant Shallow Eutrophic Temperate Lakes.International journal of environmental research and public health · 2022Article
- Characterizing a subtropical hypereutrophic lake: From physicochemical variables to shotgun metagenomic data.Frontiers in microbiology · 2022Article
- Linear Six-Carbon Sugar Alcohols Induce Lysis ofFrontiers in microbiology · 2022Article
- Preliminary evidence on the presence of cyanobacteria and cyanotoxins from culture enrichments followed by PCR analysis: new perspectives from Africa (Mali) and South Pacific (Fiji) countries.Environmental science and pollution research international · 2021Article
- Article
- Article
- Use of qPCR and RT-qPCR for monitoring variations of microcystin producers and as an early warning system to predict toxin production in an Ohio inland lake.Water research · 2020Article
- Article
- Using quartz sand to enhance the removal efficiency of M. aeruginosa by inorganic coagulant and achieve satisfactory settling efficiency.Scientific reports · 2017Article
- Management of toxic cyanobacteria for drinking water production of Ain Zada Dam.Environmental monitoring and assessment · 2017Article
- Insights into the Planktothrix genus: Genomic and metabolic comparison of benthic and planktic strains.Scientific reports · 2017Article
- Temporal Dynamics of the Microbial Community Composition with a Focus on Toxic Cyanobacteria and Toxin Presence during Harmful Algal Blooms in Two South German Lakes.Frontiers in microbiology · 2017Article
- Review
- Role of toxic and bioactive secondary metabolites in colonization and bloom formation by filamentous cyanobacteria Planktothrix.Harmful algae · 2016Review
- Competition between toxic and non-toxic Microcystis aeruginosa and its ecological implication.Ecotoxicology (London, England) · 2015Article
- Comparison of Quantitative PCR and Droplet Digital PCR Multiplex Assays for Two Genera of Bloom-Forming Cyanobacteria, Cylindrospermopsis and Microcystis.Applied and environmental microbiology · 2015Article
Corrections and comments
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Authors and funding
6 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The concentration of microcystins (MCs) produced during blooms depends on variations in both the proportion of strains containing the genes involved in MC production and the MC cell quota (the ratio between the MC concentration and the density of cells with the mcyA genotype) for toxic strains. In order to assess the dynamics of MC-producing and non-MC-producing strains and to identify the impact of environmental factors on the relative proportions of these two subpopulations, we performed a 2-year survey of a perennial bloom of Planktothrix agardhii (cyanobacteria). Applying quantitative real-time PCR to the mcyA and phycocyanin genes, we found that the proportion of cells with the mcyA genotype varied considerably over time (ranging from 30 to 80% of the population). The changes in the proportion of cells with the mcyA genotype appeared to be inversely correlated to changes in the density of P. agardhii cells and also, to a lesser extent, to the availability of certain nutrients and the abundance of cladocerans. Among toxic cells, the MC cell quota varied throughout the survey. However, a negative correlation between the MC cell quota and the mcyA cell number during two short periods characterized by marked changes in the cyanobacterial biomass was found. Finally, only 54% of the variation in the MC concentrations measured in the lake can be explained by the dynamics of the density of cells with the MC producer genotype, suggesting that this measurement is not a satisfactory method for use in monitoring programs intended to predict the toxic risk associated with cyanobacterial proliferation.
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