Novel basal, fungal lineages from freshwater phytoplankton and lake samples
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- Seiji Ishida
- Department of Environmental Science Faculty of Science Toho University Funabashi Chiba Japan
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- Daiki Nozaki
- Department of Environmental Science Faculty of Science Toho University Funabashi Chiba Japan
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- Hans‐Peter Grossart
- Department of Experimental Limnology Leibniz‐Institute of Freshwater Ecology and Inland Fisheries Stechlin Brandenburg Germany
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- Maiko Kagami
- Department of Environmental Science Faculty of Science Toho University Funabashi Chiba Japan
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<jats:title>Summary</jats:title><jats:p>Zoosporic fungal parasites are known to control the extent and development of blooms of numerous phytoplankton species. Despite the obvious importance of ecological interactions between parasitic fungi and their phytoplanktonic hosts, their diversity remains largely unknown due to methodological limitations. Here, a method to genetically analyse fungi directly from single, infected colonies of the phytoplanktonic host was applied to field samples of large diatom species from mesotrophic Lake Biwa and eutrophic <jats:styled-content style="fixed-case">L</jats:styled-content>ake <jats:styled-content style="fixed-case">I</jats:styled-content>nba, <jats:styled-content style="fixed-case">J</jats:styled-content>apan. Although previous research on interaction between lacustrine fungi and large phytoplankton has mainly focused on the role of parasitic <jats:styled-content style="fixed-case">C</jats:styled-content>hytridiomycota, our results revealed that fungi attached to large diatoms included not only members of <jats:styled-content style="fixed-case">C</jats:styled-content>hytridiomycota, but also members of <jats:styled-content style="fixed-case">A</jats:styled-content>phelida, <jats:styled-content style="fixed-case">C</jats:styled-content>ryptomycota and yeast. The fungi belonging to <jats:styled-content style="fixed-case">C</jats:styled-content>hytridiomycota and <jats:styled-content style="fixed-case">A</jats:styled-content>phelida form novel, basal lineages. Environmental clone libraries also support the occurrence of these lineages in Japanese lakes. The presented method enables us to better characterize individual fungal specimens on phytoplankton, and thus facilitate and improve the investigation of ecological relationships between fungi and phytoplankton in aquatic ecosystems.</jats:p>
収録刊行物
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- Environmental Microbiology Reports
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Environmental Microbiology Reports 7 (3), 435-441, 2015-03-09
Wiley
