Abstract. The Tibetan Plateau harbors the largest number of glaciers outside polar regions, which are source several major rivers in Asia. These also sources nutrients for downstream ecosystems, while there is a little amount data available on nutrient transformation processes glacier surface. Here, we monitored carbon and nitrogen concentration changes snowpit following snowfall Dunde Glacier ...

A bacterial strain S-51T was isolated from rhizospheric forest soil at Kyonggi University during the study of previously uncultured bacterium. The phylogenetic analysis based on 16S rRNA gene sequences that indicated belonged to genus Rhizobium within family Rhizobiaceae. closest members were naphthalenivorans TSY03bT (98.2% sequence similarity) and selenitireducens ATCC BAA-1503T (98.1%). simi...

Coupling of nitrogen removal processes with nitrification (NRn) are vital synergistic elimination mechanisms in aquatic environments. However, the effects antibiotics on NRn not well known. In present work, 20-day continuous-flow experiments combined 15N tracing techniques and quantitative PCR were performed to simulate impact sulfamethoxazole (SMX, a sulfonamide antibiotic) near situ concentra...

Both, 3,4-dimethylpyrazole phosphate (DMPP) and N-(n-butyl) thiophosphoric triamide (NBPT) are commonly used as nitrogen (N) stabilizers, often in agriculture to reduce loss from soils by inhibiting soil nitrification slowing down urea hydrolysis, respectively. The current knowledge gap concerns how microbial communities involved N cycling affected the long-term use of DMPP NBPT. present field ...

Biochar application can influence soil nitrogen (N) cycle through biological and abiotic processes. However, studies on comprehensive examination of the effects biochar microbially mediated N-cycling processes (N mineralization, nitrification, denitrification, fixation) N fate (i.e., plant uptake, N2O emission, leaching) are warranted. Therefore, aim this study was to examine transformation, mi...

The soluble tungsten, iron-sulfur enzyme acetylene hydratase (AH) from mesophilic Pelobacter acetylenicus is a member of the dimethyl sulfoxide (DMSO) reductase family. It stands out from its class as it catalyzes a nonredox reaction, the addition of H₂O to acetylene (H-C≡C-H) to form acetaldehyde (CH₃CHO). Caught in its active W(IV) state, the high-resolution three-dimensional structure of AH ...

Archaea are widespread in extreme and temperate environments, and cultured representatives cover a broad spectrum of metabolic capacities, which sets them up for potentially major roles in the biogeochemistry of their ecosystems. The detection, characterization, and quantification of archaeal functions in mixed communities require Archaea-specific primers or probes for the corresponding metabol...

The effect of lesions induced by bilateral intracerebroventricular (i.c.v.) injection of quinolinate (250 nmol of QUIN/ventricle), a selective N-methyl-D-aspartate (NMDA) receptor agonist, on [3H]glutamate ([3H]Glu) binding to the main types of both ionotropic and metabotropic glutamate receptors (iGluR and mGluR) was investigated in synaptic membrane preparations from the hippocampi of 50-day-...

Extant deep-sea invertebrate fauna represent both ancient and recent invasions from shallow-water habitats. Hydrostatic pressure may present a significant physiological challenge to organisms seeking to colonize deeper waters or migrate ontogenetically. Pressure may be a key factor contributing to bottlenecks in the radiation of taxa and potentially drive speciation. Here, we assess shifts in t...