Enora Briand

TL;DR: In GNPS, crowdsourced curation of freely available community-wide reference MS libraries will underpin improved annotations and data-driven social-networking should facilitate identification of spectra and foster collaborations.

TL;DR: It appeared that favorable conditions for Microcystis cell growth led to the selection, within the Micro Cystis population, of a non-microcystin-producing genotype, whereas potentially microcystIn- producing genotypes were dominant in this population before and after the bloom, when environmental conditions were less favorable for growth.

TL;DR: Applying quantitative real-time PCR to the mcyA and phycocyanin genes, it is found that 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 this measurement is not a satisfactory method for use in monitoring programs intended to predict the toxic risk associated with cyanobacterial proliferation.

TL;DR: Environmental factors may have an indirect effect on the microcystin (MC) production rate, and on the selection of MC-producing and non-MC-producing strains, via their direct impact on both the cell growth rate and the cell densities in the cultures.

TL;DR: It is demonstrated that very different results can be found for the proportions of potentially MC-producing and non-MC-producing cells and MC concentrations, even in M. aeruginosa populations living in more or less connected ecosystems, demonstrating the importance of the effect of very local environmental conditions on these parameters and also the difficulty of predicting the potential toxicity of Microcystis blooms.