Results 61 to 70 of about 98 (84)

Sediment-modulated seafloor residence time controls efficient organic carbon burial in subduction zones

Nature Communications
The subduction organic carbon (OC) flux is closely linked with seafloor sedimentation processes. In hadal trenches, sediment transport and resuspension caused by turbidity events provide rapid feedback of subducting carbon fate to seafloor sedimentation ...
Mengfan Chu, Kejian Liu, Zhirong Cai, Troy Rasbury, Martin Kölling, Matthias Zabel, Cecilia McHugh, Michael Strasser, Ken Ikehara, Rui Bao   +9 more
doaj   +1 more source

Differential hypo-osmotic stress responses and regulatory mechanisms of Aspergillus sydowii in amphipod guts and hadal sediments

Applied and Environmental Microbiology
Hadal amphipods, which play a vital role in deep-sea ecosystems, harbor gut microbiota that significantly influence host physiology and environmental adaptation.
Zhuo Wang, Yukun Cui, Jiasong Fang, Xi Yu   +3 more
doaj   +1 more source

Design and Experimental Study of Pressure-retaining Sampling Device for Sediments in Hadal Trenches

工程科学与技术, 2023
To realize pressure-retaining sampling of deep-sea sediments, a self-sealing all-depth oceanic sediment pressure retaining sampling system based on the lander is proposed. The sampling system comprises a deep-sea oil-filled motor, transmission machinery,
Peng ZHOU, Hao WANG, Peihao ZHANG, Chen CAO, Yuping FANG, Yue HUANG, Jiawang CHEN   +6 more
doaj  

Comparative Genomics Reveals Evidence of the Genome Reduction and Metabolic Potentials of Aliineobacillus hadale Isolated from Challenger Deep Sediment of the Mariana Trench

Microorganisms
Hadal zones account for the deepest 45% of oceanic depth range and play an important role in ocean biogeochemical cycles. As the least-explored aquatic habitat on earth, further investigation is still required to fully elucidate the microbial taxonomy ...
Shaofeng Yang, Jie Liu, Yang Liu, Weichao Wu, Jiahua Wang, Yuli Wei   +5 more
doaj   +1 more source

Hadal trench microbiomes as models of extreme adaptation and ecosystem function

Communications Earth & Environment
Hadal trenches form where one tectonic plate descends beneath another, creating the deepest ocean habitats. Despite extreme pressure and limited energy supply, their microbiomes sustain biogeochemical cycling and support trench ecosystems. In this Review,
Alexandru S. Barcan, Rares A. Barcan, Lisheng He, Yong Wang   +3 more
doaj   +1 more source

Revealing the metabolic potential and environmental adaptation of nematophagous fungus, Purpureocillium lilacinum, derived from hadal sediment

Frontiers in Microbiology
The extreme environment shapes fungi in deep-sea sediments with novel metabolic capabilities. The ubiquity of fungi in deep-sea habitats supports their significant roles in these ecosystems.
Yongqi Li, Changhao Zhang, Maosheng Zhong, Shenao Hu, Yukun Cui, Jiasong Fang, Jiasong Fang, Xi Yu   +7 more
doaj   +1 more source

Redox-stratified macromolecule degradation supports microbial survival in the oligotrophic Kermadec Trench sediments

Nature Communications
Kermadec Trench is a hadal ecosystem in the South Pacific with the water depth 10,047 m. The trench bottom harbors a highly active and populated microbial community, despite the surface sediment is characterized as extremely pressurized, oligotrophic and
Yongxin Lv, Peiyu Liu, Yan Liu, Liang Dong, Jinhua Li, Yu Zhang   +5 more
doaj   +1 more source

Fungal Abundance and Diversity in the Mariana Trench, the Deepest Ecosystem on Earth

Journal of Fungi
Hadal trenches host abundant and diversified benthic prokaryotic assemblages, but information on benthic fungi is still extremely limited. We investigated the fungal abundance and diversity in the Challenger Deep (at ca.
Stefano Varrella, Giulio Barone, Cinzia Corinaldesi, Alessio Giorgetti, Hidetaka Nomaki, Takuro Nunoura, Eugenio Rastelli, Michael Tangherlini, Roberto Danovaro, Antonio Dell’Anno   +9 more
doaj   +1 more source

Bioturbation in the hadal zone

Nature Communications
The hadal zone, >6 km deep, remains one of the least understood ecosystems on Earth. We address bioturbational structures in sediment cores from depths exceeding 7.5 km, collected during the IODP Expedition 386 in the Japan Trench. Micro-CT imaging on 20
Jussi Hovikoski, Joonas J. Virtasalo, Andreas Wetzel, Mishelle Muthre, Michael Strasser, Jean-Noel Proust, Ken Ikehara   +6 more
doaj   +1 more source

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Revealing the Viral Community in the Hadal Sediment of the New Britain Trench

Genes, 2021
Xuan Li, Jiawang Chen
exaly