Paul Layoun
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Paul Layoun has a total of 34 co-authors. Here are the top co-authors by number of shared publications:
- Michaela M. Salcher
Department of Aquatic Microbial Ecology, Institute of Hydrobiology, Biology Centre of the Czech Academy of Sciences, České Budějovice, Czech Republic
2 shared publications - Rohit Ghai
Department of Aquatic Microbial Ecology, Institute of Hydrobiology, Biology Centre of the Czech Academy of Sciences, České Budějovice, Czech Republic
2 shared publications - Adam Woźniczka
National Marine Fisheries Research Institute, Research Station in Świnoujście, Świnoujście, Poland
1 shared publication - Adrian-Stefan Andrei
Limnological Station, Department of Plant and Microbial Biology, University of Zurich, Kilchberg, Switzerland
1 shared publication - Anna Bednarska
Department of Hydrobiology, Institute of Ecology, Faculty of Biology, University of Warsaw , Żwirki i Wigury 101, 02-089 Warszawa
1 shared publication - Bettina Sonntag
Research Department for Limnology, Mondsee, University of Innsbruck, A-5310 Mondsee, Austria
1 shared publication
Latest Publications
- Open Access
- 12 December 2025
- Published by Springer Nature in Microbiome
- Vol. 14 (1)
Ecological success in freshwater lakes: insights from novel cultivated lineages of the abundant Nanopelagicales order
The order Nanopelagicales is the most abundant bacterioplankton lineage in freshwater lakes and exhibits typical streamlined genomic characteristi
- 12 December 2025
- Published by Springer Nature in Microbiome
- Vol. 14 (1)
Open AccessEcological success in freshwater lakes: insights from novel cultivated lineages of the abundant Nanopelagicales order
The order Nanopelagicales is the most abundant bacterioplankton lineage in freshwater lakes and exhibits typical streamlined genomic characteristi
- Open Access
A freshwater radiation of diplonemids
Diplonemids are considered marine protists and have been reported among the most abundant and diverse eukaryotes in the world oceans. Recently we detected the presence of freshwater diplonemids in Lake Biwa, Japan. However, their distribution and abundances in freshwater ecosystems remain unknown. We assessed abundance and diversity of diplonemids from several geographically distant deep freshwater lakes of the world by amplicon-sequencing, shotgun metagenomics and CARD-FISH. We found diplonemids in all the studied lakes, albeit with low abundances and diversity. We assembled long 18S rRNA sequences from freshwater diplonemids and showed that they form a new lineage distinct from the diverse marine clades. Freshwater diplonemids are a sister-group to marine isolates from coastal and bay areas, suggesting a recent habitat transition from marine to freshwater habitats. Images of CARD-FISH targeted freshwater diplonemids suggest they feed on bacteria. Our analyses of 18S rRNA sequences retrieved from single cell genomes of marine diplonemids shows they encode multiple rRNA copies that may be very divergent from each other, suggesting that marine diplonemid abundance and diversity both have been overestimated. These results have wider implications on assessing eukaryotic abundances in natural habitats by using amplicon-sequencing alone.
Open AccessA freshwater radiation of diplonemids
Diplonemids are considered marine protists and have been reported among the most abundant and diverse eukaryotes in the world oceans. Recently we detected the presence of freshwater diplonemids in Lake Biwa, Japan. However, their distribution and abundances in freshwater ecosystems remain unknown. We assessed abundance and diversity of diplonemids from several geographically distant deep freshwater lakes of the world by amplicon-sequencing, shotgun metagenomics and CARD-FISH. We found diplonemids in all the studied lakes, albeit with low abundances and diversity. We assembled long 18S rRNA sequences from freshwater diplonemids and showed that they form a new lineage distinct from the diverse marine clades. Freshwater diplonemids are a sister-group to marine isolates from coastal and bay areas, suggesting a recent habitat transition from marine to freshwater habitats. Images of CARD-FISH targeted freshwater diplonemids suggest they feed on bacteria. Our analyses of 18S rRNA sequences retrieved from single cell genomes of marine diplonemids shows they encode multiple rRNA copies that may be very divergent from each other, suggesting that marine diplonemid abundance and diversity both have been overestimated. These results have wider implications on assessing eukaryotic abundances in natural habitats by using amplicon-sequencing alone.