Results 71 to 80 of about 24,254 (212)

Nitrate ammonification by Nautilia profundicola AmH: experimental evidence consistent with a free hydroxylamine intermediate.

Frontiers in Microbiology, 2013
The process of nitrate reduction via nitrite controls the fate and bioavailability of mineral nitrogen within ecosystems; i.e. whether it is retained as ammonium (ammonification) or lost as nitrous oxide or dinitrogen (denitrification). Here, we present
Thomas E Hanson, Thomas E Hanson, Thomas E Hanson, Barbara J Campbell, Katie M. Kalis, Mark A. Campbell, Martin G Klotz   +6 more
doaj   +1 more source

Proteomics of Nitrotyrosine: Integrating Mass Spectrometry and Immunodetection in Redox‐Driven Pathology

Mass Spectrometry Reviews, EarlyView.
ABSTRACT Nitrooxidative stress, driven by excess reactive nitrogen species like peroxynitrite, contributes to the pathogenesis of many chronic diseases. Among its molecular footprints, 3‐nitrotyrosine (3NT) has emerged as a biologically relevant marker of protein nitration.
Brîndușa Alina Petre
wiley   +1 more source

Plant species are more important to bacterial community composition than seeding ratio in a pea‐canola intercropping system

PLANTS, PEOPLE, PLANET, EarlyView.
Demand for agricultural land has increased due to rising demand for food, potentially leading to expansion into previously untouched habitats, which threatens refugia of native plants. We aimed to provide insight into how variation in seeding ratio may impact soil bacterial communities in a pea‐canola intercropping system, potentially altering crop ...
Janice M. Parks, Braeden J. Stiffler, Maren L. Friesen   +2 more
wiley   +1 more source

Seasonal variation in denitrification and dissimilatory nitrate reduction to ammonia process rates and corresponding key functional genes along an estuarine nitrate gradient

Frontiers in Microbiology, 2015
This research investigated spatial-temporal variation in benthic bacterial community structure, rates of denitrification and dissimilatory nitrate reduction to ammonium (DNRA) processes and abundances of corresponding genes and transcripts at three sites
Cindy J Smith, Cindy J Smith, Liang F Dong, John eWilson, Andrew eStott, Andrew Mark Osborn, Andrew Mark Osborn, Andrew Mark Osborn, David B Nedwell   +8 more
doaj   +1 more source

Sensing Nitrite through a Pseudoazurin–Nitrite Reductase Electron Transfer Relay

ChemPhysChem, 2005
AbstractNitrite is converted to nitric oxide by haem or copper‐containing enzymes in denitrifying bacteria during the process of denitrification. In designing an efficient biosensor, this enzymic turnover must be quantitatively assessed. The enzyme nitrite reductase from Alcaligenes faecalis contains a redox‐active blue copper centre and a nonblue ...
Astier, Y., Canters, G.W., Davis, J.J., Hill, H.A.O., Verbeet, M.P., Wijma, H.J.   +5 more
openaire   +3 more sources

Plant responses to iron nutrition with emphasis on the underutilized crop tef (Eragrostis tef): A review

PLANTS, PEOPLE, PLANET, EarlyView.
Iron (Fe) deficiency limits the physical health, cognitive development, and economic output of billions of people globally, especially children and productive‐age women. Tef is an underutilized and stress‐resilient crop, which is becoming popular for its grains containing high bioavailable Fe and has the potential to mitigate Fe deficiency.
Muhammad Numan, David Remington, Ayalew Ligaba‐Osena   +2 more
wiley   +1 more source

Responsive nitric oxide‐releasing antibacterial materials for biofilm‐associated infections: Mechanisms, design strategies, and applications

Responsive Materials, EarlyView.
This review summarizes the recent progress in responsive NO‐releasing materials and their applications in biofilm‐associated infectious diseases. The design principles and response mechanisms are given to provide inspiration toward the future development of multi‐responsive NO‐releasing materials.
Wenyue Sun, Meiqi Li, Di Nan, Jiaqi Zhao, Yu Chen, Yao Gao, Shichen Zhang, Kirsten L. Van Landuyt, Manlin Qi   +8 more
wiley   +1 more source

The effect of ionic and non-ionic surfactants on the growth, nitrate reductase and nitrite reductase activities of Spirodela polyrrhiza (L.) Schleiden

Acta Societatis Botanicorum Poloniae, 2014
Inclusion into the medium of 5 mg•dm-3 of non-ionic (ENF) or ionic (DBST) surfactant caused 50-60% inhibition of nitrite reductase MR) activity in S. polyrrhiza.
Józef Buczek
doaj   +1 more source

Methaemoglobinaemia: From pathophysiology to contemporary clinical management

British Journal of Haematology, EarlyView.
Summary Methaemoglobin (MetHb) is an oxidised form of haemoglobin (Hb) unable to bind oxygen. Raised levels of MetHb reduce the blood's oxygen‐carrying capacity, causing potentially severe hypoxaemia and possible death. The condition arises from three main pathologies: mutations in globin genes causing Haemoglobin‐M, inherited deficiency of the enzyme ...
Alexander J. Twine, David C. Rees
wiley   +1 more source

Effects of FACE on denitrification activity in paddy-field soil

浙江大学学报. 农业与生命科学版, 2007
A free-air CO2 enrichment (FACE) experiment was used to investigate the effects of elevated atmospheric CO2 concentration on soil denitrification activities. The FACE system was conducted under a rice/wheat rotation at Jiangdu, China.
WANG Shu-yi, HAN Lin, SHI Yi, MEI Bao-lin, ZHU Jian-guo   +4 more
doaj   +1 more source