Results 71 to 80 of about 1,261,463 (391)

Role of heterotrophic aerobic denitrifying bacteria in nitrate removal from wastewater

open access: yesJournal of Applied Microbiology, 2020
With the increase in industrial and agricultural activities, a large amount of nitrogenous compounds are released into the environment, leading to nitrate pollution.
A. Rajta   +3 more
semanticscholar   +1 more source

Simultaneous Determination of Nitrite and Nitrate in Milk Samples by Ion Chromatography Method and Estimation of Dietary Intake [PDF]

open access: yes, 2016
The presence of nitrate and nitrite in foods may be considered hazardous after ingestion in the gastrointestinal tract due to their reaction with naturally occurred secondary amines to form potentially carcinogenic nitrosamines.
Chamandust, S.   +6 more
core  

Dentrification potential of different landuse types in an agricultural watershed, lower Mississippi valley. [PDF]

open access: yes, 2006
Expansion of agricultural land and excessive nitrogen (N) fertilizer use in the Mississippi River watershed has resulted in a three-fold increase in the nitrate load of the river since the early 1950s.
Faulkner, Stephen, Ullah, Sami
core   +2 more sources

Mechanistic basis for inhibition of the extended‐spectrum β‐lactamase GES‐1 by enmetazobactam and tazobactam

open access: yesFEBS Letters, EarlyView.
Antimicrobial resistance (AMR) is of huge importance, resulting in over 1 million deaths each year. Here, we describe how a new drug, enmetazobactam, designed to help fight resistant bacterial diseases, inhibits a key enzyme (GES‐1) responsible for AMR. Our data show it is a more potent inhibitor than the related tazobactam, with high‐level computation
Michael Beer   +10 more
wiley   +1 more source

Intercropping Lettuce with Alfalfa Under Variable Nitrate Supply: Effects on Growth Performance and Nutrient Dynamics in a Vertical Hydroponic System

open access: yesPlants
Vertical farming systems offer an efficient solution for sustainable food production in urban areas. However, managing nitrate (NO3−) levels remains a significant challenge for improving crop yield, quality, and safety.
Luis D-Andrade   +7 more
doaj   +1 more source

Nitrate Protocol [PDF]

open access: yes, 2003
The purpose of this resource is to measure the nitrate-nitrogen of water. Students will use a nitrate kit to measure the nitrate-nitrogen in the water at their hydrology site.
The GLOBE Program, UCAR (University Corporation for Atmospheric Research)
core  

Influence of different iron availability on phosphoenolpiruvate carboxilase and malate dehydrogenase in roots of maize (Zea Mays L.) plants grown under iron deficiency [PDF]

open access: yes, 2010
The effect of the different nitrate availability on some enzymatic activities has been evaluated in iron deficient and iron sufficient maize plants (Zea mays L.).
Adalgisa Belligno, Marco Antonio Russo
core   +2 more sources

C9orf72 ALS‐causing mutations lead to mislocalization and aggregation of nucleoporin Nup107 into stress granules

open access: yesFEBS Letters, EarlyView.
Mutations in the C9orf72 gene represent the most common genetic cause of amyotrophic lateral sclerosis (ALS), a fatal neurodegenerative disease. Using patient‐derived neurons and C. elegans models, we find that the nucleoporin Nup107 is dysregulated in C9orf72‐associated ALS. Conversely, reducing Nup107 levels mitigates disease‐related changes.
Saygın Bilican   +7 more
wiley   +1 more source

Rapid Griess assay (RGA): a chairside test for ex vivo semi-quantitative oral nitrite measurement and in vitro assessment of nitrite production by oral bacteria

open access: yesJournal of Oral Microbiology
Background Nitrite (NO2−) is produced through enzymatic reduction of dietary nitrate (NO3−) by oral bacteria: a process contributing to cardiovascular – and possibly oral – health.
Simeon K B Mavropoulos   +3 more
doaj   +1 more source

Nitrogen dynamics in the shallow groundwater of a riparian wetland zone of the Garonne, SW France: nitrate inputs, bacterial densities, organic matter supply and denitrification measurements [PDF]

open access: yes, 2003
This study highlights the role of interactions between surface and sub-surface water of the riparian zone of a large river (the Garonne, SW France). Information is given about the role of surface water in supplying Dissolved Organic Carbon (DOC ) to the
F. Garabétian   +8 more
core   +5 more sources

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