Опубликована: Апрель 1, 2022

Despite their extreme physicochemical conditions, deep-sea hypersaline anoxic basins (DHABs), together with the overlying seawater–brine interfaces, constitute microbiologically diverse and biogeochemically active ecosystems. Extremely high salinity makes brine waters of DHABs immiscible oxic seawaters two water bodies are separated by suboxic interfaces. This salinity-based stratification creates pronounced chemoclines (haloclines) pycnoclines within systems. A comparison all geochemical microbiological data available for global DHAB systems showed that interfaces metabolically most segments these physiographies. While sulfate reduction, methanogenesis autotrophic carbon fixation only metabolic processes have been identified thus far cores Mediterranean Sea, globally harbor diversified microbial communities having potentials sulfide oxidation, methanogenesis, aerobic/anaerobic methane acetogenesis, dioxide ammonia denitrification and/or nitrogen fixation. The overall geomicrobial framework was considered in context comparator marine ecosystems emerging paradigm ecosystem design found to hold implications our understanding ancient microbiomes amidst extremes on a planetary scale.

Язык: Английский