Results 71 to 80 of about 591 (127)
Tillage does not impact soil greenhouse gas emissions in a Central Texas rainfed maize–cotton system
Abstract Agricultural soils are a significant source of greenhouse gas (GHG) emissions, primarily as N2O. Monitoring how management practices impact soil gas fluxes (CO2, CH4, and N2O) is useful for making sure conservation practices (e.g., no‐till) are sustainable with regards to all potential environmental impacts.
Dorothy Menefee, Hal Collins, Doug Smith
wiley +1 more source
Hydroxylamine as an intermediate in ammonia oxidation by globally abundant marine archaea [PDF]
The ammonia-oxidizing archaea have recently been recognized as a significant component of many microbial communities in the biosphere. Although the overall stoichiometry of archaeal chemoautotrophic growth via ammonia (NH 3 ) oxidation to nitrite (NO 2 −
Neeraja, Vajrala +6 more
openaire +2 more sources
Abundance and diversity of nitrogen-removing microorganisms in the UASB-anammox reactor.
Anaerobic ammonium oxidation is considered to be the most economical and low-energy biological nitrogen removal process. So far, anammox bacteria have not yet been purified from cultures.
Rui Chen +5 more
doaj +1 more source
ABSTRACT The development of biofertilization strategies based on arbuscular mycorrhizal fungi (AMF) represents a promising approach to enhance crop productivity and soil health while reducing the environmental footprint of conventional fertilization. This study evaluated the effects of Glomus iranicum var.
María Patiño‐García +7 more
wiley +1 more source
Serpentine Biocrust Microbes Maintain Nitrogen Cycling Under Drought and Heavy Metal Stress
This study highlights the complex interplay between soil geochemistry and moisture availability in shaping microbial communities within wetter and drier serpentine and non‐serpentine biological soil crusts. It demonstrates that both factors influence the structure of nitrogen‐cycling microbial communities and the processes they mediate.
Sandra Barnard +4 more
wiley +1 more source
Emergent Macrophytes Act Selectively on Ammonia-Oxidizing Bacteria and Archaea [PDF]
ABSTRACT Ammonia-oxidizing bacteria (AOB) and archaea (AOA) were quantified in the sediments and roots of dominant macrophytes in eight neutral to alkaline coastal wetlands. The AOA dominated in most samples, but the bacterial-to-archaeal amoA gene ratios increased with increasing ammonium levels and pH in
Trias Mansilla, Rosalia +7 more
openaire +3 more sources
ABSTRACT Abalone are economically, ecologically and culturally significant marine molluscs, with both wild and farmed populations under pressure due to intrinsic and extrinsic stressors. Abalone performance and health are centred on a highly specialized digestive system supported by a diverse gut microbiome, which enables nutrient assimilation ...
Jinchen Guo +3 more
wiley +1 more source
Environmental factors shaping the ecological niches of ammonia-oxidizing archaea [PDF]
For more than 100 years it was believed that bacteria were the only group responsible for the oxidation of ammonia. However, recently, a new strain of archaea bearing a putative ammonia monooxygenase subunit A (amoA) gene and able to oxidize ammonia was isolated from a marine aquarium tank.
Tuba H, Erguder +4 more
openaire +2 more sources
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 +5 more
doaj +1 more source
Opportunities and Challenges of the Electrosynthesis of Nitrites and Nitrates From Ammonia
Future progress on the electrosynthesis of nitrates and nitrites requires an integrated approach to enable consolidation of the mechanistic understanding in the short‐term, robust operation of all components at the electrolyser prototype level in the medium‐term, and integration into renewable power networks for sustainable fertilizer production in the
Thi Mung Vu +4 more
wiley +1 more source

