1. The trench biosphere at the bottom of the ocean: Issues and challenges 2. Geological, Physical, and Chemical Limits to the Trench Biosphere Trenches, serpentinization, and origin of life 3. Research progress on ocean circulation and its dynamics in hadal trenches 4. On the edge of the trench biosphere? Molecular evolution mechanisms of multicellular organisms adapting to the trench environment 5. Microbial life processes and adaptation strategies 6. Microbial biofilms at the bottom of the ocean 7. Microbial adaptation to hydrostatic pressure: A transcriptomic analysis 8.
Microbial Diversity and Biogeochemical Processes Identification of functional microorganisms in the Mariana Trench 9. Archaea diversity in the sediment of the Mariana and Mussau Trenches 10. Geochemical characterization of organic matter in hadal trench sediments: Insights into the food sources for hadal microorganisms 11. Carbon source, distribution and burial flux in global hadal trenches 12. Environmental Pollutants Emerging environmental pollutants in the trench biosphere and anthropogenic impacts 13. Legacy and emerging environmental pollutants in hadal trenches 14. Halogenated organic compounds in hadal trenches and microbial mediated coupled-cycling of carbon and halogens in the ocean 15. Microbial Synthesis of Secondary Metabolites Microbial production of secondary metabolites by Mariana Trench sediment fungi 16.
Natural products from hadal microorganisms 17. Innovative Sampling and Measurement Technologies and Devices, and Data Platforms Pressure-retaining sampling and transfer devices 18. Microbial ectoenzyme activities measured under in-situ conditions reveals varied microbial activities with depth in the water column of the Challenger Deep 19. Basic theory and key technologies for deep-sea observation and exploration equipment and facilities 20. HADAL, a platform for curating and discovering microbiological and genetic resources and analyzing omics and environmental data of the ocean 21. Future Directions Studying the trench biosphere: Scientific and technological advances and applications.