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Seasonality of parasitic and saprotrophic zoosporic fungi: linking sequence data to ecological traits.
Van den Wyngaert, Silke; Ganzert, Lars; Seto, Kensuke; Rojas-Jimenez, Keilor; Agha, Ramsy; Berger, Stella A; Woodhouse, Jason; Padisak, Judit; Wurzbacher, Christian; Kagami, Maiko; Grossart, Hans-Peter.
Afiliación
  • Van den Wyngaert S; Department of Plankton and Microbial Ecology, Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Zur alten Fischerhütte 2, 16775, Stechlin, Germany. silke.vandenwyngaert@utu.fi.
  • Ganzert L; Department of Biology, University of Turku, Vesilinnantie 5, 20014, Turku, Finland. silke.vandenwyngaert@utu.fi.
  • Seto K; Department of Plankton and Microbial Ecology, Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Zur alten Fischerhütte 2, 16775, Stechlin, Germany.
  • Rojas-Jimenez K; GFZ German Research Centre for Geosciences, Section Geomicrobiology, Telegrafenberg, 14473, Potsdam, Germany.
  • Agha R; Marbio, UiT- The Arctic University of Norway, Sykehusveien 23, 9019, Tromsø, Norway.
  • Berger SA; Faculty of Environment and Information Sciences, Yokohama National University, Tokiwadai 79-7, Hodogayaku, Yokohama, Kanagawa, 240-8501, Japan.
  • Woodhouse J; Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, 48109, MI, USA.
  • Padisak J; Escuela de Biología, Universidad de Costa Rica, 11501, San José, Costa Rica.
  • Wurzbacher C; Department of Ecosystem Research, Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Müggelseedamm 301, 12587, Berlin, Germany.
  • Kagami M; Department of Plankton and Microbial Ecology, Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Zur alten Fischerhütte 2, 16775, Stechlin, Germany.
  • Grossart HP; Department of Plankton and Microbial Ecology, Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Zur alten Fischerhütte 2, 16775, Stechlin, Germany.
ISME J ; 16(9): 2242-2254, 2022 09.
Article en En | MEDLINE | ID: mdl-35764676
ABSTRACT
Zoosporic fungi of the phylum Chytridiomycota (chytrids) regularly dominate pelagic fungal communities in freshwater and marine environments. Their lifestyles range from obligate parasites to saprophytes. Yet, linking the scarce available sequence data to specific ecological traits or their host ranges constitutes currently a major challenge. We combined 28 S rRNA gene amplicon sequencing with targeted isolation and sequencing approaches, along with cross-infection assays and analysis of chytrid infection prevalence to obtain new insights into chytrid diversity, ecology, and seasonal dynamics in a temperate lake. Parasitic phytoplankton-chytrid and saprotrophic pollen-chytrid interactions made up the majority of zoosporic fungal reads. We explicitly demonstrate the recurrent dominance of parasitic chytrids during frequent diatom blooms and saprotrophic chytrids during pollen rains. Distinct temporal dynamics of diatom-specific parasitic clades suggest mechanisms of coexistence based on niche differentiation and competitive strategies. The molecular and ecological information on chytrids generated in this study will aid further exploration of their spatial and temporal distribution patterns worldwide. To fully exploit the power of environmental sequencing for studies on chytrid ecology and evolution, we emphasize the need to intensify current isolation efforts of chytrids and integrate taxonomic and autecological data into long-term studies and experiments.
Asunto(s)

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Parásitos / Quitridiomicetos / Diatomeas Tipo de estudio: Risk_factors_studies Límite: Animals Idioma: En Revista: ISME J Asunto de la revista: MICROBIOLOGIA / SAUDE AMBIENTAL Año: 2022 Tipo del documento: Article País de afiliación: Alemania

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Parásitos / Quitridiomicetos / Diatomeas Tipo de estudio: Risk_factors_studies Límite: Animals Idioma: En Revista: ISME J Asunto de la revista: MICROBIOLOGIA / SAUDE AMBIENTAL Año: 2022 Tipo del documento: Article País de afiliación: Alemania