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Community Structure and Toxicity Potential of Cyanobacteria during Summer and Winter in a Temperate-Zone Lake Susceptible to Phytoplankton Blooms.
Wejnerowski, Lukasz; Dulic, Tamara; Akter, Sultana; Font-Nájera, Arnoldo; Rybak, Michal; Kaminski, Oskar; Czerepska, Anna; Dziuba, Marcin Krzysztof; Jurczak, Tomasz; Meriluoto, Jussi; Mankiewicz-Boczek, Joanna; Kokocinski, Mikolaj.
Afiliación
  • Wejnerowski L; Department of Hydrobiology, Institute of Environmental Biology, Faculty of Biology, Adam Mickiewicz University, Uniwersytetu Poznanskiego 6, 61-614 Poznan, Poland.
  • Dulic T; Biochemistry and Cell Biology, Faculty of Science and Engineering, Åbo Akademi University, Tykistökatu 6A, 20520 Turku, Finland.
  • Akter S; Biotechnology, Department of Life Technologies, Faculty of Technology, University of Turku, 20520 Turku, Finland.
  • Font-Nájera A; European Regional Centre for Ecohydrology of the Polish Academy of Sciences, Tylna 3, 90-364 Lódz, Poland.
  • Rybak M; Department of Water Protection, Institute of Environmental Biology, Faculty of Biology, Adam Mickiewicz University, Uniwersytetu Poznanskiego 6, 61-614 Poznan, Poland.
  • Kaminski O; Department of Hydrobiology, Institute of Environmental Biology, Faculty of Biology, Adam Mickiewicz University, Uniwersytetu Poznanskiego 6, 61-614 Poznan, Poland.
  • Czerepska A; Department of Hydrobiology, Institute of Environmental Biology, Faculty of Biology, Adam Mickiewicz University, Uniwersytetu Poznanskiego 6, 61-614 Poznan, Poland.
  • Dziuba MK; Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI 48109, USA.
  • Jurczak T; UNESCO Chair on Ecohydrology and Applied Ecology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland.
  • Meriluoto J; Biochemistry and Cell Biology, Faculty of Science and Engineering, Åbo Akademi University, Tykistökatu 6A, 20520 Turku, Finland.
  • Mankiewicz-Boczek J; UNESCO Chair on Ecohydrology and Applied Ecology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland.
  • Kokocinski M; Department of Hydrobiology, Institute of Environmental Biology, Faculty of Biology, Adam Mickiewicz University, Uniwersytetu Poznanskiego 6, 61-614 Poznan, Poland.
Toxins (Basel) ; 16(8)2024 Aug 14.
Article en En | MEDLINE | ID: mdl-39195767
ABSTRACT
Cyanobacterial blooms are increasingly common during winters, especially when they are mild. The goal of this study was to determine the summer and winter phytoplankton community structure, cyanotoxin presence, and toxigenicity in a eutrophic lake susceptible to cyanobacterial blooms throughout the year, using classical microscopy, an analysis of toxic cyanometabolites, and an analysis of genes involved in biosynthesis of cyanotoxins. We also assessed whether cyanobacterial diversity in the studied lake has changed compared to what was reported in previous reports conducted several years ago. Moreover, the bloom-forming cyanobacterial strains were isolated from the lake and screened for cyanotoxin presence and toxigenicity. Cyanobacteria were the main component of the phytoplankton community in both sampling times, and, in particular, Oscillatoriales were predominant in both summer (Planktothrix/Limnothrix) and winter (Limnothrix) sampling. Compared to the winter community, the summer community was denser; richer in species; and contained alien and invasive Nostocales, including Sphaerospermopsis aphanizomenoides, Raphidiopsis raciborskii, and Raphidiopsis mediterranea. In both sampling times, the blooms contained toxigenic species with genetic determinants for the production of cylindrospermopsin and microcystins. Toxicological screening revealed the presence of microcystins in the lake in summer but no cyanotoxins in the winter period of sampling. However, several cyanobacterial strains isolated from the lake during winter and summer produced anabaenopeptins and microcystins. This study indicates that summer and winter blooms of cyanobacteria in the temperate zone can differ in biomass, structure, and toxicity, and that the toxic hazards associated with cyanobacterial blooms may potentially exist during winter.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Fitoplancton / Estaciones del Año / Lagos / Cianobacterias Idioma: En Revista: Toxins (Basel) Año: 2024 Tipo del documento: Article País de afiliación: Polonia Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Fitoplancton / Estaciones del Año / Lagos / Cianobacterias Idioma: En Revista: Toxins (Basel) Año: 2024 Tipo del documento: Article País de afiliación: Polonia Pais de publicación: Suiza