Results 71 to 80 of about 254,729 (175)

Prebiotic aqueous reactions catalyzed by native nickel without hydrogen

The FEBS Journal, EarlyView.
Serpentinizing (H2‐producing) hydrothermal vents are candidate environments for metabolic origin. They generate highly reducing conditions that convert CO2 to formate and methane in abiotic reactions resembling reactions of the acetyl‐CoA pathway of CO2 fixation. They also contain natural catalysts. Native nickel (Ni0), like Fe0, Co0, and their alloys,
Carolina Garcia Garcia, Max Brabender, William F. Martin   +2 more
wiley   +1 more source

ADP-dependent Phosphofructokinases in Mesophilic and Thermophilic Methanogenic Archaea [PDF]

, 2001
Phosphofructokinase (PFK) is a key enzyme of the glycolytic pathway in all domains of life. Two related PFKs, ATP-dependent and PPi-dependent PFK, have been distinguished in bacteria and eucarya, as well as in some archaea.
Kengen, S.W.M., Vos, W.M., de, Verhees, C.H., Tuininga, J.E., van der Oost, J., Stams, A.J.M., Oost, J., van der, de Vos, W.M.   +7 more
core   +1 more source

Hydrothermal origin of metabolic phosphorylation

The FEBS Journal, EarlyView.
Serpentinizing hydrothermal vents are candidate sites for biochemical origins. They generate extremely reducing conditions, depositing phosphite (HPO32−) and transition metals, including palladium, in the native (zero‐valent) state. Schlikker et al.
Manon L. Schlikker, Nadja K. Hoffmann, Sabine Metzger, Jorge Moral‐Pombo, Harun Tüysüz, William F. Martin   +5 more
wiley   +1 more source

Ammonia manipulates the ammonia-oxidizing archaea and bacteria in the coastal sediment-water microcosms

, 2015
Ammonia was observed as a potential significant factor to manipulate the abundance and activity of ammonia-oxidizing microorganisms (AOMs) in water environments. For the first time, this study confirmed this phenomenon by laboratory cultivation.
Dai, Tianjiao, Sun, Renhua, Wen, Donghui, Zhang, Yan, Chen, Lujun   +4 more
core   +1 more source

Short‐term effects of Brassicaceae crop residue on soil nitrification and nodulation in the subsequent field pea

Agrosystems, Geosciences &Environment, Volume 9, Issue 4, December 2026.
Abstract Glucosinolates (GLS) in Brassicaceae crops are known to suppress soil nitrification. Despite widespread inclusion of Brassicaceae species in pulse crop rotations, their effects on soil nitrification and root nodulation of subsequent pulse crops are poorly understood.
Piumi N. Gallage, Manjula S. Bandara, Mervin St. Luce, J. Diane Knight   +3 more
wiley   +1 more source

Cultivation of Autotrophic Ammonia-Oxidizing Archaea from Marine Sediments in Coculture with Sulfur-Oxidizing Bacteria

, 2010
The role of ammonia-oxidizing archaea (AOA) in nitrogen cycling in marine sediments remains poorly characterized. In this study, we enriched and characterized AOA from marine sediments. Group I.1a crenarchaea closely related to those identified in marine
Byoung-Joon Park, Stefan Schouten, Sung-Keun Rhee, Jaap S. Sinninghe Damsté, Dae-No Yoon, Soo-Je Park   +5 more
core   +1 more source

Metagenomic Evidence for the Presence of Comammox Nitrospira-Like Bacteria in a Drinking Water System

mSphere, 2016
We report metagenomic evidence for the presence of a Nitrospira-like organism with the metabolic potential to perform the complete oxidation of ammonia to nitrate (i.e., it is a complete ammonia oxidizer [comammox]) in a drinking water system.
Ameet J. Pinto, Daniel N. Marcus, Umer Zeeshan Ijaz, Quyen Melina Bautista-de lose Santos, Gregory J. Dick, Lutgarde Raskin   +5 more
doaj   +1 more source

Recent Advances in Biogas Production and Upgrading Technologies for Sustainable Energy Systems

GCB Bioenergy, Volume 18, Issue 11, November 2026.
Biogas technology is evolving from waste treatment into an intelligent renewable energy platform. Recent advances in anaerobic digestion, pretreatment, reactor design, biomethane upgrading, and AI‐driven process control improve methane recovery, stability, and gas purity.
Temechew Dessie, Kassa Wudineh Liyew, Eshetu Getahun   +2 more
wiley   +1 more source

Ammonia oxidation coupled to CO2 fixation by Archaea and Bacteria in an agricultural soil

, 2011
Ammonia oxidation is an essential part of the global nitrogen cycling and was long thought to be driven only by bacteria. Recent findings expanded this pathway also to the archaea.
Dumont, Marc G., Jennifer Pratscher, Pratscher, J., Dumont, Marc, Dumont, M., Conrad, R., Dumont, Marc G, Marc G. Dumont, Ralf Conrad, Pratscher, Jennifer, Conrad, Ralf, Dumont, M. G.   +11 more
core   +1 more source

Enrichment and characteristics of ammonia-oxidizing archaea in wastewater treatment process

, 2022
High purity ammonia-oxidizing archaea (AOA) culture containing a single AOA strain was enriched from the filtering materials of biological aerated filter. The concentration of AOA reached 3.27 × 107 copies/mL, while its proportion was 91.40%.
Yue, Y, Jin, W, Tu, R, Zhou, X, Du, S, Wang, Q, Han, S, Chen, H, Guo, K, Gao, SH, Xie, GJ   +10 more
core   +1 more source