Spatial variation and metabolic diversity of microbial communities in the surface sediments of the Mariana Trench [PDF]
Frontiers in Microbiology, 2022 Mariana Trench represents the deepest and one of least explored biosphere on Earth, and its carbon sources include euphotic sinking, lateral transportation and diffusion from underlying crust, etc. By far the spatial variation of microbial community with
Fangzhou Wang +6 more
doaj +2 more sources
Alkane degradation mechanism of Mixta calida HXX308 isolated from sediment of the Mariana Trench [PDF]
Frontiers in MicrobiologyThe Challenger Deep of the Mariana Trench, which is the deepest site in the ocean, contains rich deposits of n-alkanes in its sediments. However, the alkane metabolic processes of the bacteria in this extreme environment were not well understood. In this
Yizi Yang +5 more
doaj +2 more sources
High hydrostatic pressure shapes the development and production of secondary metabolites of Mariana Trench sediment fungi [PDF]
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 +4 more
doaj +2 more sources
Phytoplankton-derived polysaccharides and microbial peptidoglycans are key nutrients for deep-sea microbes in the Mariana Trench [PDF]
MicrobiomeBackground The deep sea represents the largest marine ecosystem, driving global-scale biogeochemical cycles. Microorganisms are the most abundant biological entities and play a vital role in the cycling of organic matter in such ecosystems.
Yan-Ru Dang +12 more
doaj +2 more sources
Spatial Variability of Picoeukaryotic Communities in the Mariana Trench. [PDF]
Sci Rep, 2018 AbstractPicoeukaryotes play prominent roles in the biogeochemical cycles in marine ecosystems. However, their molecular diversity studies have been confined in marine surface waters or shallow coastal sediments. Here, we investigated the diversity and metabolic activity of picoeukaryotic communities at depths ranging from the surface to the ...
Jing H, Zhang Y, Li Y, Zhu W, Liu H.
europepmc +5 more sources
Bioactive Metabolites from the Mariana Trench Sediment-Derived Fungus Penicillium sp. SY2107 [PDF]
Marine Drugs, 2020 Mariana Trench sediments are enriched in microorganisms, however, the structures and bioactivities of their secondary metabolites are not very known. In this study, a fungus Penicillium sp.
Sidra Kaleem +4 more
doaj +2 more sources
Particle-Attached and Free-Living Archaeal Communities in the Benthic Boundary Layer of the Mariana Trench [PDF]
Frontiers in Microbiology, 2018 The benthic boundary layer (BBL) is the part of the water column that is situated near to the sediment surface, where active oceanic biogeochemical cycling occurs.
Hongmei Jing +5 more
doaj +2 more sources
Insight Into the Pico- and Nano-Phytoplankton Communities in the Deepest Biosphere, the Mariana Trench [PDF]
Frontiers in Microbiology, 2018 As photoautotrophs, phytoplankton are generally present in the euphotic zone of the ocean, however, recently healthy phytoplankton cells were found to be also ubiquitous in the dark deep sea, i.e., at water depths between 2000 and 4000 m.
Ruoyu Guo +9 more
doaj +2 more sources
Construction of High-Resolution Bathymetric Dataset for the Mariana Trench [PDF]
IEEE Access, 2019 Access to reliable and accurate bathymetric data is fundamental to many marine activities. This paper proposes a merge-normalization (MN) method that is suitable for multisource bathymetric data fusion in deep ocean areas, to solve the problem of ...
Yang Liu +7 more
doaj +2 more sources
Flow Pathways of Abyssal Water in the Yap Trench and Adjacent Channels and Basins
Frontiers in Marine Science, 2022 Abyssal flow pathways in the Yap Trench and adjacent regions were investigated by computing geostrophic flows and analyzing water properties. Using boundary values of potential temperature, salinity, oxygen, and silicate, the upper and lower Circumpolar ...
Xuehai Liu +7 more
doaj +1 more source