Microscale carbon distribution around pores and particulate organic matter varies with soil moisture regime. [PDF]
Nat Commun, 2022 Soil carbon sequestration arises from the interplay of carbon input and stabilization, which vary in space and time. Assessing the resulting microscale carbon distribution in an intact pore space, however, has so far eluded methodological accessibility ...
Schlüter S +9 more
europepmc +2 more sources
Particulate organic matter as a functional soil component for persistent soil organic carbon. [PDF]
Nat Commun, 2021 The largest terrestrial organic carbon pool, carbon in soils, is regulated by an intricate connection between plant carbon inputs, microbial activity, and the soil matrix.
Witzgall K +8 more
europepmc +2 more sources
Bacteria and Archaea Regulate Particulate Organic Matter Export in Suspended and Sinking Marine Particle Fractions [PDF]
mSphere, 2023 The biological carbon pump (BCP) in the Southern Ocean is driven by phytoplankton productivity and is a significant organic matter sink. However, the role of particle-attached (PA) and free-living (FL) prokaryotes (bacteria and archaea) and their ...
Choaro D. Dithugoe +5 more
doaj +2 more sources
Particulate Mercury and Particulate Organic Matter in the Itenez Basin (Bolivia) [PDF]
Applied Sciences, 2020 In rivers and other freshwater bodies, the presence of mercury can be due to direct contamination by anthropic activities such as gold mining. However, it can also be attributed to atmospheric deposition and erosion, runoff, or lixiviation from ...
Fabiola Guzmán-Uria +3 more
doaj +3 more sources
Nutrient ratios in marine particulate organic matter are predicted by the population structure of well-adapted phytoplankton. [PDF]
Sci Adv, 2020 Global patterns in organic matter stoichiometry are predicted by the population structure of well-adapted phytoplankton. A common assumption of a constant nitrogen-to-phosphorus ratio (N:P) of 16:1 in marine particulate organic matter (POM) appears to be
Sharoni S, Halevy I.
europepmc +2 more sources
Origin, trophic transfer and recycling of particulate organic matter in two upwelling bays of Humboldt Current System: Insights from compound-specific isotopic compositions of amino acids. [PDF]
PLoS ONEThe Chilean upwelling bays are highly productive ecosystems shaped by their interactions with the open ocean. Although significant knowledge exists regarding their hydrodynamic and ecological processes, the spatial dynamics of trophic transfer and ...
Benjamín Srain +3 more
doaj +2 more sources
Biocatalytic quantification of α‐glucan in marine particulate organic matter [PDF]
MicrobiologyOpen, 2022 Marine algae drive the marine carbon cycle, converting carbon dioxide into organic material. A major component of this produced biomass is a variety of glycans. Marine α‐glucans include a range of storage glycans from red and green algae, bacteria, fungi,
Nicola Steinke +3 more
doaj +2 more sources
Significant contribution of metastable particulate organic matter to natural formation of silver nanoparticles in soils. [PDF]
Nat Commun, 2019 Particulate organic matter (POM) is distributed worldwide in high abundance. Although insoluble, it could serve as a redox mediator for microbial reductive dehalogenation and mineral transformation.
Huang YN +5 more
europepmc +2 more sources
Biological composition and microbial dynamics of sinking particulate organic matter at abyssal depths in the oligotrophic open ocean. [PDF]
Proc Natl Acad Sci U S A, 2019 Significance Sinking particles composed of both organic and inorganic material feed the deep-sea ecosystem and contribute centrally to ocean carbon sequestration.
Boeuf D +8 more
europepmc +2 more sources
Microscale ecology regulates particulate organic matter turnover in model marine microbial communities. [PDF]
Nat Commun, 2018 The degradation of particulate organic matter in the ocean is a central process in the global carbon cycle, the mode and tempo of which is determined by the bacterial communities that assemble on particle surfaces.
Enke TN +4 more
europepmc +2 more sources