The marine cyanobacterium Prochlorococcus is the smallest and most abundant
photosynthetic organism on Earth. In this Review, we summarize our understanding of the …

The bacteria that can be grown in the laboratory are only a small fraction of the total diversity
that exists in nature. At all levels of bacterial phylogeny, uncultured clades that do not grow …

Evidence is accumulating to challenge the paradigm that biogenic methanogenesis,
considered a strictly anaerobic process, is exclusive to archaea. We demonstrate that …

Many heterotrophic bacteria are known to release extracellular vesicles, facilitating
interactions between cells and their environment from a distance. Vesicle production has not …

Plastic pollution is a global threat to marine ecosystems. Plastic litter can leach a variety of
substances into marine environments; however, virtually nothing is known regarding how …

Prochlorococcus is a key member of open-ocean primary producer communities. Despite its
importance, little is known about the predators that consume this cyanobacterium and make …

Prochlorococcus is both the smallest and numerically most abundant photosynthesizing
organism on the planet. While thriving in the warm oligotrophic gyres, Prochlorococcus …

The phytoplankton community in the oligotrophic open ocean is numerically dominated by
the cyanobacterium Prochlorococcus, accounting for approximately half of all …

Ocean viruses alter ecosystems through host mortality, horizontal gene transfer and by
facilitating remineralization of limiting nutrients. However, the study of wild viral populations …

Organisms within all domains of life require the cofactor cobalamin (vitamin B12), which is
produced only by a subset of bacteria and archaea. On the basis of genomic analyses …