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Is Toxin-Producing <i>Planktothrix</i> sp. an Emerging Species in Lake Constance?
Published 2021-09-01“…Recurring blooms of filamentous, red-pigmented and toxin-producing cyanobacteria <i>Planktothrix rubescens</i> have been reported in numerous deep and stratified prealpine lakes, with the exception of Lake Constance. In a 2019 and 2020 Lake Constance field campaign, we collected samples from a distinct red-pigmented biomass maximum below the chlorophyll-a maximum, which was determined using fluorescence probe measurements at depths between 18 and 20 m. …”
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Fate of Planktothrix-derived toxins in aquatic food webs: A case study in Lake Mindelsee (Germany)
Published 2024-03-01“…Using 16 S rRNA gene amplicon sequencing, we found that five sequence variants of Planktothrix spp. were responsible for bloom formation in September and October of 2019, and these MC-producing variants, provisionally identified as P. isothrix and/or P. serta, occurred exclusively in Lake Mindelsee (Germany), while other variants were also detected in nearby Lake Constance. The remaining cyanobacterial community was dominated by Cyanobiaceae species with high species overlap with Lake Constance, suggesting a well-established exchange of cyanobacteria species between the adjacent lakes. …”
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