Adaptive genetic traits in pelagic freshwater microbes

MC Chiriac, M Haber… - Environmental …, 2023 - Wiley Online Library
Pelagic microbes have adopted distinct strategies to inhabit the pelagial of lakes and
oceans and can be broadly categorized in two groups: free‐living, specialized oligotrophs …

Same same but different: ecological niche partitioning of planktonic freshwater prokaryotes

MM Salcher - Journal of Limnology, 2014 - zora.uzh.ch
Lakes and ponds harbour a high number of diverse planktonic microorganisms that are
centrally involved in biochemical cycles and aquatic food webs. Although the open water …

Hidden in plain sight—highly abundant and diverse planktonic freshwater Chloroflexi

M Mehrshad, MM Salcher, Y Okazaki, S Nakano… - Microbiome, 2018 - Springer
Background Representatives of the phylum Chloroflexi, though reportedly highly abundant
in the extensive deep water habitats of both marine (SAR202 up to 30% of total prokaryotes) …

Mixing‐driven changes in distributions and abundances of planktonic microorganisms in a large, oligotrophic lake

KA Evans, LM Peoples, JR Ranieri… - Limnology and …, 2024 - Wiley Online Library
Temperate lakes experience variation in mixing and stratification that affects the
distributions, activities, abundances, and diversity of plankton communities. We examined …

Long-read-resolved, ecosystem-wide exploration of nucleotide and structural microdiversity of lake bacterioplankton genomes

Y Okazaki, S Nakano, A Toyoda, H Tamaki - Msystems, 2022 - Am Soc Microbiol
Reconstruction of metagenome-assembled genomes (MAGs) has become a fundamental
approach in microbial ecology. However, a MAG is hardly complete and overlooks genomic …

Genome‐resolved viral and cellular metagenomes revealed potential key virus‐host interactions in a deep freshwater lake

Y Okazaki, Y Nishimura, T Yoshida… - Environmental …, 2019 - Wiley Online Library
Metagenomics has dramatically expanded the known virosphere, but freshwater viral
diversity and their ecological interaction with hosts remain poorly understood. Here, we …

Ubiquity and quantitative significance of bacterioplankton lineages inhabiting the oxygenated hypolimnion of deep freshwater lakes

Y Okazaki, S Fujinaga, A Tanaka, A Kohzu… - The ISME …, 2017 - academic.oup.com
The oxygenated hypolimnion accounts for a volumetrically significant part of the global
freshwater systems. Previous studies have proposed the presence of hypolimnion-specific …

A single Thaumarchaeon drives nitrification in deep oligotrophic Lake Constance

J Herber, F Klotz, B Frommeyer, S Weis… - Environmental …, 2020 - Wiley Online Library
Ammonia released during organic matter mineralization is converted during nitrification to
nitrate. We followed spatiotemporal dynamics of the nitrifying microbial community in deep …

Chloroflexi CL500-11 Populations That Predominate Deep-Lake Hypolimnion Bacterioplankton Rely on Nitrogen-Rich Dissolved Organic Matter Metabolism and C1 …

VJ Denef, RS Mueller, E Chiang… - Applied and …, 2016 - Am Soc Microbiol
The Chloroflexi CL500-11 clade contributes a large proportion of the bacterial biomass in
the oxygenated hypolimnia of deep lakes worldwide, including the world's largest freshwater …

Metaepigenomic analysis reveals the unexplored diversity of DNA methylation in an environmental prokaryotic community

S Hiraoka, Y Okazaki, M Anda, A Toyoda… - Nature …, 2019 - nature.com
DNA methylation plays important roles in prokaryotes, and their genomic landscapes—
prokaryotic epigenomes—have recently begun to be disclosed. However, our knowledge of …