Results 1 to 10 of about 98 (84)

Composition and Ecological Roles of the Core Microbiome along the Abyssal-Hadal Transition Zone Sediments of the Mariana Trench.

Microbiology Spectrum, 2022
The unique geological features of hadal trenches are known to influence both the structure and ecological function of microbial communities. It is also well known that heterotrophs and chemoautotrophs dominate the hadal and abyssal pelagic zones ...
Huahua Jian, Xiang Xiao, Zhiyong Li
exaly   +3 more sources

A Novel Sediment Pressure Sampling Device Carried by a Hadal-Rated Lander

Journal of Marine Science and Engineering, 2020
Reliable sampling technology for deep-sea sediments is a prerequisite for studying the sedimentary environment in the geological history, the mechanical characteristics of sediments and sediment biology. In this study, we develop a new sampling device in
Jiawang Chen
exaly   +3 more sources

Culture Enrichment Combined With Long-Read Sequencing Facilitates Genomic Understanding of Hadal Sediment Microbes

Frontiers in Marine Science, 2021
Culture enrichment was developed to discover the uncharted microbial species in the environmental microbiota. Yet this strategy has not been widely used to study microbes of deep-sea environments.
Rulong Liu, Yi Lan, Jin Sun
exaly   +3 more sources

Metagenomic characterization of a novel non-ammonia-oxidizing Thaumarchaeota from hadal sediment

Microbiome
Background The hadal sediment, found at an ocean depth of more than 6000 m, is geographically isolated and under extremely high hydrostatic pressure, resulting in a unique ecosystem.
Guo-Ping Zhao, Zhe-Xue Quan, Sung-Keun Rhee   +2 more
exaly   +2 more sources

Organic matter degradation causes enrichment of organic pollutants in hadal sediments

Nature Communications, 2023
Burial of persistent organic pollutants (POPs) such as polychlorinated biphenyls (PCBs) in deep-sea sediments contributes to 60% of their historical emissions. Yet, empirical data on their occurrence in the deep-ocean is scarce.
Anna Sobek, Sebastian Abel, Hamed Sanei, Stefano Bonaglia, Zhe Li, Gisela Horlitz, Arka Rudra, Kazumasa Oguri, Ronnie N. Glud   +8 more
doaj   +1 more source

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

Revealing the full biosphere structure and versatile metabolic functions in the deepest ocean sediment of the Challenger Deep

Genome Biology, 2021
Background The full biosphere structure and functional exploration of the microbial communities of the Challenger Deep of the Mariana Trench, the deepest known hadal zone on Earth, lag far behind that of other marine realms.
Ping Chen, Hui Zhou, Yanyan Huang, Zhe Xie, Mengjie Zhang, Yuli Wei, Jia Li, Yuewei Ma, Min Luo, Wenmian Ding, Junwei Cao, Tao Jiang, Peng Nan, Jiasong Fang, Xuan Li   +14 more
doaj   +1 more source

High hydrostatic pressure shapes the development and production of secondary metabolites of Mariana Trench sediment fungi

Scientific Reports, 2021
The hadal biosphere is one of the least understood ecosystems on our planet. Recent studies have revealed diverse and active communities of prokaryotes in hadal sediment. However, there have been few studies on fungi in hadal sediment. Here we report the
Qingqing Peng, Yongqi Li, Ludan Deng, Jiasong Fang, Xi Yu   +4 more
doaj   +1 more source

Distinctive signatures of pathogenic and antibiotic resistant potentials in the hadal microbiome

Environmental Microbiome, 2022
Background Hadal zone of the deep-sea trenches accommodates microbial life under extreme energy limitations and environmental conditions, such as low temperature, high pressure, and low organic matter down to 11,000 m below sea level.
Liuqing He, Xinyu Huang, Guoqing Zhang, Ling Yuan, Enhui Shen, Lu Zhang, Xiao-Hua Zhang, Tong Zhang, Liang Tao, Feng Ju   +9 more
doaj   +1 more source

High Carbon Mineralization Rates in Subseafloor Hadal Sediments—Result of Frequent Mass Wasting

Geochemistry, Geophysics, Geosystems, 2022
In the past 20 years, the exploration of deep ocean trenches has led to spectacular new insights. Even in the deepest canyons, an unusual variety of life and unexpectedly high benthic oxygen consumption rates have been detected while microbial processes ...
M. Zabel, R. N. Glud, H. Sanei, M. Elvert, T. Pape, P.‐C. Chuang, E. Okuma, P. Geprägs, M. Kölling   +8 more
doaj   +1 more source