Results 1 to 10 of about 525 (166)

Viral Infections Boost Prokaryotic Biomass Production and Organic C Cycling in Hadal Trench Sediments. [PDF]

Front Microbiol, 2019
Hadal trenches are among the most remote and least explored ecosystems on Earth and can support high benthic microbial standing stocks and activities. However, information on the role of viruses in such ecosystems and their interactions with prokaryotic ...
Manea E, Dell'Anno A, Rastelli E, Tangherlini M, Nunoura T, Nomaki H, Danovaro R, Corinaldesi C.   +7 more
europepmc   +6 more sources

Genomic Characteristics and Potential Metabolic Adaptations of Hadal Trench Roseobacter and Alteromonas Bacteria Based on Single-Cell Genomics Analyses. [PDF]

Front Microbiol, 2020
Heterotrophic bacteria such as those from the Roseobacter group and genus Alteromonas dominate the hadal zones of oceans; however, we know little about the genomic characteristics and potential metabolic adaptations of hadal trench-dwelling bacteria ...
Chen M, Song Y, Feng X, Tang K, Jiao N, Tian J, Zhang Y.   +6 more
europepmc   +2 more sources

Removal of dissolved organic carbon in the West Pacific hadal zones. [PDF]

Nat Commun
The deep oceans are environments of complex carbon dynamics that have the potential to significantly impact the global carbon cycle. However, the role of hadal zones, particularly hadal trenches (water depth > 6 km), in the oceanic dissolved organic ...
Chu M, Bao R, Strasser M, Ikehara K, Ding Y, Liu K, Liu M, Xu L, Wang Y, Bellanova P, Rasbury T, Kölling M, Riedinger N, Luo M, März C, Jitsuno K, Cai Z, McHugh C, Druffel E.   +18 more
europepmc   +2 more sources

Genomic evidence on the distribution and ecological function of Pseudomonas in hadal zone. [PDF]

BMC Microbiol
The hadal zone is the deepest region on Earth. It serves as a depositional zone for the sinking matter from surface ocean and continental margin, aided by its unique V-shaped structure.
Lv Y, Zhang L, Wang X, Zhang Y.
europepmc   +2 more sources

High hydrostatic pressure stimulates microbial nitrate reduction in hadal trench sediments under oxic conditions. [PDF]

Nat Commun
Hadal trenches are extreme environments situated over 6000 m below sea surface, where enormous hydrostatic pressure affects the biochemical cycling of elements.
Yang N, Lv Y, Ji M, Wu S, Zhang Y.
europepmc   +2 more sources

Depth shapes microbiome assembly and network stability in the Mariana Trench. [PDF]

Microbiol Spectr
The Mariana Trench, a stable marine ecosystem minimally impacted by human activities, has the greatest vertical depth in the ocean. Depth gradients profoundly influence the physical, chemical, and biotic conditions in the deep oceans.
Li Y, Kan J, Liu F, Lian K, Liang Y, Shao H, McMinn A, Wang H, Wang M.   +8 more
europepmc   +2 more sources

Clear niche partitioning of nitrite-oxidizing bacteria from the bottom and the slope of Mariana Trench. [PDF]

Microbiome
Background The hadal zone, characterized by extreme hydrostatic pressure and geographic isolation, hosts microbial communities uniquely adapted to these harsh conditions.
Lv Y, Zhang L, Zhang Y.
europepmc   +2 more sources

Microbial population structure along the water columns and sediments in the Diamantina and Kermadec trenches. [PDF]

BMC Biol
Background Microbes are widespread from the marine surface to the hadal zones and play a significant role in global biogeochemical cycling. Physicochemical properties of hadal zone shift with depth, in turn influencing the distribution profiles ...
Xiao Y, Liu H, Wang P, Zhang Y, Wang F, Jing H.   +5 more
europepmc   +2 more sources

Microbial community structure and functional traits involved in the adaptation of culturable bacteria within the gut of amphipods from the deepest ocean. [PDF]

Microbiol Spectr
The Hadal Zone is acknowledged for its extreme environmental conditions, especially high hydrostatic pressures. The dominant scavengers in the Hadal Zone, Hadal amphipods, fulfill vital roles in the Hadal food web and ecological niches. However, research
Cui Y, Xiao Y, Wang Z, Ji P, Zhang C, Li Y, Fang J, Yu X.   +7 more
europepmc   +2 more sources

Hadal Biodiversity, Habitats and Potential Chemosynthesis in the Java Trench, Eastern Indian Ocean

Frontiers in Marine Science, 2022
The Java Trench is the only subduction trench in the Indian Ocean that extends to the hadal zone (> 6,000 m water depth), and except for sevenbenthic trawls acquired around the 1950s, there has been little to no sampling at hadal depths undertaken ...
Alan J. Jamieson, Alan J. Jamieson, Heather A. Stewart, Heather A. Stewart, Johanna N. J. Weston, Patrick Lahey, Victor L. Vescovo   +6 more
doaj   +1 more source