Results 21 to 30 of about 564,464 (248)

Organic sulfur was integral to the Archean sulfur cycle [PDF]

Nature Communications, 2019
AbstractThe chemistry of the Early Earth is widely inferred from the elemental and isotopic compositions of sulfidic sedimentary rocks, which are presumed to have formed globally through the reduction of seawater sulfate or locally from hydrothermally supplied sulfide.
Mojtaba Fakhraee, Sergei Katsev
openaire   +3 more sources

Vegetation restoration restructures soil sulfur allocation and sulfur-cycling functional potential in the Mu Us Sandy Land

Frontiers in Microbiology
Vegetation restoration in semi-arid sandy ecosystems can alter soil sulfur cycling not only through changes in sulfur stocks, but also through shifts in the partitioning between organic sulfur and sulfate and their microbial regulation.
Xuetong Wang, Ning Yang, Yueyue Hu, Xuerong Wang, Xuerong Wang, Yang Wu, Yang Wu, Aiping Zhang, Yanan Wang   +8 more
doaj   +1 more source

Sulfur biogeochemical dynamics of grassland soils in northern China transect along an aridity gradient

Geoderma
As an essential nutrient element for biological growth and metabolism, sulfur is closely interlinked with the carbon and nitrogen cycles, and it is one of the limiting elements for grassland productivity.
Yi-Wen Cao, Xiao-Bo Wang, Chao Wang, Edith Bai, Nanping Wu   +4 more
doaj   +1 more source

Stable High-Capacity Elemental Sulfur Cathodes with Simple Process for Lithium Sulfur Batteries

Molecules, 2023
Lithium sulfur batteries are suitable for drones due to their high gravimetric energy density (2600 Wh/kg of sulfur). However, on the cathode side, high specific capacity with high sulfur loading (high areal capacity) is challenging due to the poor ...
Shunsuke Sawada, Hideki Yoshida, Shalom Luski, Elena Markevich, Gregory Salitra, Yuval Elias, Doron Aurbach   +6 more
doaj   +1 more source

The Biogeochemical Sulfur Cycle of Marine Sediments [PDF]

Frontiers in Microbiology, 2019
Microbial dissimilatory sulfate reduction to sulfide is a predominant terminal pathway of organic matter mineralization in the anoxic seabed. Chemical or microbial oxidation of the produced sulfide establishes a complex network of pathways in the sulfur cycle, leading to intermediate sulfur species and partly back to sulfate.
Jørgensen, Bo Barker, Findlay, Alyssa J., Pellerin, André   +2 more
openaire   +4 more sources

The significance of serine residues 138 on iron regulatory protein 1 to iron-sulfur cluster cycling.

, 2000
The significance of serine residues 138 on iron regulatory protein 1 to iron-sulfur cluster ...
Nina Marie. Brown (7966295)
core   +4 more sources

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

FEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

FEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil, Jeffrey A. Hawkes, Cecilia Blikstad, Pia Lindberg   +3 more
wiley   +1 more source

Stress-tolerant sulfur cathode with a super-stretchable polymer coating via initiated chemical vapor deposition

Communications Materials
The mechanical deterioration of the sulfur cathode during cycling from repeated voltage changes is a limiting factor of the cycling stability of lithium-sulfur batteries.
Jinhong Lee, Myung Seok Oh, Sejin Kim, Ilju Kim, Kyu-Nam Jung, Myung Hyun Ryu, Gisu Doo, Jinkwan Jung, Sung Gap Im, Hee-Tak Kim   +9 more
doaj   +1 more source

Groundwater microbial community structure under contrasting hydrological conditions in a sulfate-rich karst aquifer

Frontiers in Microbiology
Karst aquifers represent dynamic subsurface environments where hydrological fluctuations and redox variability can strongly influence groundwater microbiomes and associated biogeochemical processes. However, microbial sulfur cycling in sulfate-rich karst
Renato Romano, Tom Morita, Francielli Peres, Rebeca Lizárraga, Lucas Padoan, Maria Nascimento, Livia Rocha, Amanda Bendia, Ivo Karmann, Vivian Pellizari   +9 more
doaj   +1 more source