Publikation:

Variability in microcystin quotas during a Microcystis bloom in a eutrophic lake

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2021

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Wood, Susanna A.
Puddick, Jonathan
Hawes, Ian
Hamilton, David P.

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http://nbn-resolving.de/urn:nbn:de:bsz:352-2-1pcobg0sycm6t5
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https://doi.org/10.1371/journal.pone.0254967
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CC BY 4.0

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Open Access-Veröffentlichung
Open Access Gold

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Biologie: Publikationen
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Published

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PLoS one. Public Library of Science (PLoS). 2021, 16(7), e0254967. eISSN 1932-6203. Available under: doi: 10.1371/journal.pone.0254967

Zusammenfassung

Microcystis is a bloom-forming genus of cyanobacteria with some genotypes that produce highly toxic microcystin hepatotoxins. In waterbodies where biological and physical factors are relatively homogenous, toxin quotas (the average amount of toxin per cell), at a single point in time, are expected to be relatively constant. In this study we challenged this assumption by investigating the spatial distribution of microcystin quotas at a single point in time on two separate occasions in a lake with a major Microcystis bloom. Microcystis cell concentrations varied widely across the lake on both sampling occasions (730- and 137-fold) together with microcystin quotas (148- and 362-fold). Cell concentrations and microcystin quotas were strongly positively correlated (R2 = 0.89, P < 0.001, n = 28; R2 = 0.67, P < 0.001, n = 25). Analysis of Microcystis strains using high-throughput sequencing of the 16S-23S rRNA intergenic spacer region showed no relationship between microcystin quota and the relative abundance of specific sequences. Collectively, the results of this study indicate an association between microcystin production and cell density that magnifies the potential for bloom toxicity at elevated cell concentrations.

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570 Biowissenschaften, Biologie

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ISO 690WOOD, Susanna A., Jonathan PUDDICK, Ian HAWES, Konstanze STEINER, Daniel R. DIETRICH, David P. HAMILTON, 2021. Variability in microcystin quotas during a Microcystis bloom in a eutrophic lake. In: PLoS one. Public Library of Science (PLoS). 2021, 16(7), e0254967. eISSN 1932-6203. Available under: doi: 10.1371/journal.pone.0254967
BibTex
@article{Wood2021Varia-54426,
  year={2021},
  doi={10.1371/journal.pone.0254967},
  title={Variability in microcystin quotas during a Microcystis bloom in a eutrophic lake},
  number={7},
  volume={16},
  journal={PLoS one},
  author={Wood, Susanna A. and Puddick, Jonathan and Hawes, Ian and Steiner, Konstanze and Dietrich, Daniel R. and Hamilton, David P.},
  note={Article Number: e0254967}
}
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