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

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 t...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Susanna A Wood, Jonathan Puddick, Ian Hawes, Konstanze Steiner, Daniel R Dietrich, David P Hamilton
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/93dc71b729d44b868f5cd42582d42a87
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:93dc71b729d44b868f5cd42582d42a87
record_format	dspace
spelling	oai:doaj.org-article:93dc71b729d44b868f5cd42582d42a872021-12-02T20:06:42ZVariability in microcystin quotas during a Microcystis bloom in a eutrophic lake.1932-620310.1371/journal.pone.0254967https://doaj.org/article/93dc71b729d44b868f5cd42582d42a872021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0254967https://doaj.org/toc/1932-6203Microcystis 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.Susanna A WoodJonathan PuddickIan HawesKonstanze SteinerDaniel R DietrichDavid P HamiltonPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 7, p e0254967 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Susanna A Wood Jonathan Puddick Ian Hawes Konstanze Steiner Daniel R Dietrich David P Hamilton Variability in microcystin quotas during a Microcystis bloom in a eutrophic lake.
description	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.
format	article
author	Susanna A Wood Jonathan Puddick Ian Hawes Konstanze Steiner Daniel R Dietrich David P Hamilton
author_facet	Susanna A Wood Jonathan Puddick Ian Hawes Konstanze Steiner Daniel R Dietrich David P Hamilton
author_sort	Susanna A Wood
title	Variability in microcystin quotas during a Microcystis bloom in a eutrophic lake.
title_short	Variability in microcystin quotas during a Microcystis bloom in a eutrophic lake.
title_full	Variability in microcystin quotas during a Microcystis bloom in a eutrophic lake.
title_fullStr	Variability in microcystin quotas during a Microcystis bloom in a eutrophic lake.
title_full_unstemmed	Variability in microcystin quotas during a Microcystis bloom in a eutrophic lake.
title_sort	variability in microcystin quotas during a microcystis bloom in a eutrophic lake.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/93dc71b729d44b868f5cd42582d42a87
work_keys_str_mv	AT susannaawood variabilityinmicrocystinquotasduringamicrocystisbloominaeutrophiclake AT jonathanpuddick variabilityinmicrocystinquotasduringamicrocystisbloominaeutrophiclake AT ianhawes variabilityinmicrocystinquotasduringamicrocystisbloominaeutrophiclake AT konstanzesteiner variabilityinmicrocystinquotasduringamicrocystisbloominaeutrophiclake AT danielrdietrich variabilityinmicrocystinquotasduringamicrocystisbloominaeutrophiclake AT davidphamilton variabilityinmicrocystinquotasduringamicrocystisbloominaeutrophiclake
_version_	1718375374042169344

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

Ejemplares similares