Dissimilatory nitrate reduction翻译
WebJul 17, 2024 · The biogeochemical consequences of denitrification and dissimilatory nitrate reduction to ammonium (DNRA) have a significant influence on nitrogen (N) cycling in the ecosystem. Many researchers have explored these two pathways in soil and sediment ecosystems under anaerobic conditions. However, limited information is available … WebMay 16, 2024 · To efficiently remove nitrogen from the biofiltration system, the effect of different electron donors and C/N (dissolved organic carbon [DOC]/nitrate) on …
Dissimilatory nitrate reduction翻译
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Web异化性硝酸盐还原作用（dissimilatory nitrate reduction）最终产物为氨氮 NH_4^+ ，因此也可记为dissimilatory nitrate reduction to ammonium (DNRA)。自然界中DNRA已经 … WebDescribe the difference between assimilatory and dissimilatory nitrate reduction: Include in your answer: description of the role that nitrate plays in each case, and b. …
WebJul 11, 2024 · 古菌 和细菌均为土壤中广泛分布的两大微生物类群, 二者的群落结构均受到多种因素的影响, 其中, 土地利用变化带来植被、管理和土壤理化因子等的变化，都会影响到二者的群落结构, 进而对土壤中的物质循环产生影响 [2]。在湿地生态系统中, 古菌 、细菌群落 ...
WebMay 23, 2012 · Dissimilatory nitrate reduction to ammonium was the main pathway of nitrate reduction in the mangrove ecosystem. Nitrate reduction was mainly performed by Desulfobacterales and occurred in the ... WebThe competition between DNF and DNRA controls the dissimilatory reduction pattern and the final fate of nitrate in aquatic ecosystems. In this study, DNF and DNRA processes at the sediment-water interface (SWI) in Lake Kuilei (a shallow freshwater lake in Lake Taihu basin) were studied by using the stable nitrogen isotope tracing method.
Web1. Removal of nitrogen from any material or chemical compound; especially from the soil, as by certain (denitrifying) bacteria that render the nitrogen unavailable for plant growth. …
WebNov 24, 2016 · Denitrification and dissimilatory nitrate reduction to ammonium (DNRA) compete for nitrate in natural and engineered environments. A known important factor in this microbial competition is the ratio of available electron donor and elector acceptor, here expressed as Ac/N ratio (acetate/nitrate-nitrogen). We studied the impact of the Ac/N … jonathan hecht secWebnium, sulphate reduction produces free sulphide, and nitrate reduction produces N 2 gas. Nitrate reduction has been extended (see below) to account for DNRA and is the main subject of this paper. Model equations are similar to those in Table 2 of Kelly-Gerreyn et al. (1999) but have been modified to take in to account temperature changes. To do ... how to insert arrows in illustratorWebOct 26, 2024 · Denitrification and dissimilatory nitrate reduction to ammonium (DNRA) are two competing pathways in nitrate-reducing process. In this study, a series of C/S ratios from 8:1 to 2:4 were investigated in a sequencing biofilm batch reactor (SBBR) to determine the role of reducers (sulfide and acetate) on their competition. The results showed that … how to insert arrows in outlook emailWebimportance of dissimilatory and assimilatory uptake path-ways driving NO 2 3 and NH 1 4 uptake in streams. Nitrate is involved in two microbially mediated biogeo-chemical dissimilatory pathways that occur under sub-oxic to anoxic conditions: denitrification and dissimilatory NO2 3 reduction to NH1 4 (DNRA). In denitrification, NO 2 3 is used as how to insert arrows in google docsWebOct 18, 2012 · The genomes of two phenotypically denitrifying type strains of the genus Bacillus were sequenced and the pathways for dissimilatory nitrate reduction were reconstructed. Results suggest that denitrification proceeds in the periplasmic space and in an analogous fashion as in Gram-negative organisms, yet with the participation of … how to insert arrows in adobe acrobatWebNicholas T. Girkin, Hannah V. Cooper, in Reference Module in Earth Systems and Environmental Sciences, 2024 Dissimilatory nitrate reduction to ammonium. Dissimilatory nitrate reduction to ammonia (DNRA) is an aerobic form of respiration by a number of groups of heterotrophic bacteria and some fungi. These bacteria use NO 3 − … jonathan hedgeWebJan 1, 1992 · Denitrification, dissimilatory reduction of nitrate to ammonium, and nitrification in a bioturbated estuarine sediment as measured with N and microsensor … jonathan hedlund