CRISPR–Cas systems defend prokaryotic cells from invasive DNA of viruses, plasmids and
other mobile genetic elements. Here, we show using metagenomics, metatranscriptomics …

The Laurentian Great Lakes are vast, spatially heterogeneous, and changing. Across these
hydrologically linked basins, some conditions approach biogeochemical extremes for …

Background Biofilms in sulfide-rich springs present intricate microbial communities that play
pivotal roles in biogeochemical cycling. We studied chemoautotrophically based biofilms …

The continental subsurface houses a major portion of life's abundance and diversity, yet little
is known about viruses infecting microbes that reside there. Here, we use a combination of …

The structure and diversity of microbial community inhabiting coastal sediments reflect the
exposition to contaminants. Aiming to assess the changes in the microbiota from Sepetiba …

Forty years after discovery of chemosynthetic symbiosis in the tubeworm Riftia pachyptila,
how organisms maintain their unique host–symbiont associations at the cellular level is still …

Due to their lithotrophic metabolisms, morphological complexity and conspicuous
appearance, members of the Beggiatoaceae have been extensively studied for more than …

Diatoms are among the few eukaryotes known to store nitrate (NO3−) and to use it as an
electron acceptor for respiration in the absence of light and O2. Using microscopy and 15N …

Tor Caldara is a shallow-water gas vent located in the Mediterranean Sea, with active
venting of CO2 and H2S. At Tor Caldara, filamentous microbial biofilms, mainly composed of …

Fermentative nitrogen-fixing bacteria have not yet been examined in detail in thermal
environments. In the present study, we isolated the thermophilic fermentative bacterium …