The bacterial sulfur cycle in expanding dysoxic and euxinic marine waters
- van Vliet, Daan M.
- von Meijenfeldt, F. A. Bastiaan
- Dutilh, Bas E.
- Villanueva, Laura
- Sinninghe Damsté, Jaap S.
- Stams, Alfons Johannes Maria
- Sánchez-Andrea, Irene
DOIAbstract
Dysoxic marine waters (DMW, <1 M oxygen) are currently expanding in volume in the oceans, which has biogeochemical, ecological, and societal consequences on a global scale. In these environments, distinct bacteria drive an active sulfur cycle, which has only recently been recognized for openocean DMW. This review summarizes the current knowledge on these sulfurcycling bacteria. Critical bottlenecks and questions for future research are specifically addressed. Sulfatereducing bacteria (SRB) are core members of DMW. However, their roles are not entirely clear, and they remain largely uncultured. We found support for their remarkable diversity and taxonomic novelty by mining metagenomeassembled genomes from the Black Sea as model ecosystem. We...
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