▪ Abstract Uncultured microorganisms comprise the majority of the planet's biological
diversity. Microorganisms represent two of the three domains of life and contain vast …

Small cells dominate photosynthetic biomass and primary production in many marine
ecosystems. Traditionally, picoplankton refers to cells≤ 2 μm. Here we extend the size …

The Cyanobacteria Prochlorococcus and Synechococcus account for a substantial fraction
of marine primary production. Here, we present quantitative niche models for these lineages …

Background Likelihood-based phylogenetic inference is generally considered to be the most
reliable classification method for unknown sequences. However, traditional likelihood-based …

Abstract A quantitative PCR (QPCR) assay based on the use of SYBR Green I was
developed to assess the abundance of specific groups of picoeukaryotes in marine waters …

Comparative genomics gives us a new window into phage–host interactions and their
evolutionary implications. Here we report the presence of genes central to oxygenic …

Cyanophages (cyanobacterial viruses) are important agents of horizontal gene transfer
among marine cyanobacteria, the numerically dominant photosynthetic organisms in the …

Photosynthetic eukaryotes have a critical role as the main producers in most ecosystems of
the biosphere. The ongoing environmental metabarcoding revolution opens the perspective …

Unicellular cyanobacteria constitute a substantial, ecologically important part of freshwater
and marine microflora. Solitary, elongated cyanobacterial cells without apparent slime …

Viruses play important roles in biogeochemical nutrient cycles and act as genomic
reservoirs in marine and freshwater environments, the understanding of which brought …