Centimetre scale functional dispersal limitation of freshwater copiotrophs.

The freshwater microbiome harbours numerous copiotrophic bacteria that rapidly respond to elevated substrate concentrations. We hypothesized that their high centimetre-scale beta diversity in lake water translates into pronounced metabolic variability, and that a large fraction of microbial 'metabolic potential' originates from point sources such as fragile organic aggregates. Three experiments were conducted in pre-alpine Lake Zurich over the course of a harmful cyanobacterial bloom: Spatially explicit 9 ml 'syringe' samples were collected in situ at centimetre distances along with equally sized 'mixed' samples drawn from pre-homogenized lake water and incubated in BIOLOG EcoPlate substrate arrays.

Freshwater genome-reduced bacteria exhibit pervasive episodes of adaptive stasis.

The emergence of bacterial species is rooted in their inherent potential for continuous evolution and adaptation to an ever-changing ecological landscape. The adaptive capacity of most species frequently resides within the repertoire of genes encoding the secreted proteome (SP), as it serves as a primary interface used to regulate survival/reproduction strategies. Here, by applying evolutionary genomics approaches to metagenomics data, we show that abundant freshwater bacteria exhibit biphasic adaptation states linked to the eco-evolutionary processes governing their genome sizes.

Complete genome of str. ZE23VCel01 obtained through Nanopore Q20+ chemistry.

This study reports the complete genome of str. ZE23VCel01 isolated from a freshwater environment. By means of Nanopore Q20+ chemistry, the chromosome was assembled as a circular element with a length of 5.

A high-quality genome of an undescribed species uncovered using Q20+ Nanopore chemistry.

Herein, we document the complete genome of the strain ZE23DGlu08, isolated from Lake Zurich, Switzerland. The circular genome was assembled using long-read Nanopore data (coverage: 226×) with the Q20+ chemistry. The described strain displays a genome size of ~3.

str. Ze23jcel16 complete genome obtained through R10.4.1 Nanopore Flow cell chemistry.

Here, we report the complete genome of str. Ze23jcel16 isolated from a freshwater sample. The high-quality chromosome was obtained employing R10.

Q20+ Nanopore sequencing data recover a high-quality sp. genome.

We present here the complete genome of sp. ZE23SCel15. The strain was isolated from the surface water of Lake Zurich, Switzerland.