Piezophilic activity dominates the Puerto Rico Trench deep subseafloor biosphere
Miguel Desmarais, Corinna Breusing, Anna H. Finch, Chloé M. J. Baumas, William D. Orsi, Álvaro M. Plominsky, Yuki Morono, Laura M. Wehrmann, Dennis Graham, R. A. Pockalny, Arthur J. Spivack, Irita Aylward, Taylor Walton, Barbara Saucedo, Sofia Rivera Soto, , Douglas Hoyt Bartlett
The paper investigates pressure effects on microbial activity in the Puerto Rico Trench, finding that piezophily dominates subseafloor communities below 20 meters below seafloor.
bioRxiv · Oct 18, 2026 · PreprintMicrobiology