Results 1 to 10 of about 402,220 (244)

Nitrate reductase activity in cabbage (Brassica oleracae var. capitata) seedlings affected by the different nitrogen fertilizer forms

open access: yesActa Agrobotanica, 2013
The effect of different nitrogen fertilizer (potassium nitrate, ammonium nitrate, ammonium sulphate, urea and farmyard manure) on nitrate reductase activity in cabbage (Brassica oleracea var. capitata) seedlings were studied.
Metin Turan, Yildrum Sezen
doaj   +1 more source

EFFECT OF FOLIAR APPLICATION ON THE HERBICIDE STOMP ON NITRATE REDUCTASE IN THE LEAVES OF Gossypium hirsutum L. [PDF]

open access: yesJournal of Plant Protection and Pathology, 2010
Foliar application of stomp resulted in drastic diminishment of three parameters in leaves of young plants of cotton. The higher dose of the herbicide (15ppm) provoked reduction in nitrate reductase activity  by 46% , 57% after 5, 10 and 15 days ...
Ekhlas Eltahir, M. Wasfi
doaj   +1 more source

Effect of vanadium on nitrate reductase activity in tomato leaves

open access: yesActa Societatis Botanicorum Poloniae, 2015
The activity of nitrate reductase in cell-free extracts from tomato leaves is completely inhibited by 100 μM NaVO3 or VOCl2. In experiments in vivo vanadium ions inhibit the activity of the enzyme in 50 to 60 per cent.
J. Buczek
doaj   +1 more source

Soil acidity as affecting micronutrients concentration, nitrato reductase enzyme activity and yield in upland rice plants

open access: yesSemina: Ciências Agrárias, 2013
The lowest grain yield of rice under no-tillage system (NTS) in relation to the conventional system may be due to the predominance nitrate in the soil and the low nitrate reductase activity.
Edemar Moro   +5 more
doaj   +1 more source

Clustering as a Means To Control Nitrate Respiration Efficiency and Toxicity in Escherichia coli

open access: yesmBio, 2019
Respiration is a fundamental process that has to optimally respond to metabolic demand and environmental changes. We previously showed that nitrate respiration, crucial for gut colonization by enterobacteria, is controlled by polar clustering of the ...
Suzy Bulot   +8 more
doaj   +1 more source

Nitrate and nitrite reductase activities of Mycobacterium avium

open access: yesInternational Journal of Mycobacteriology, 2018
Background: In spite of the fact that the standard test for nitrate reductase activity is negative for Mycobacterium avium, it can grow in a defined minimal medium with either nitrate (NO3) or nitrite (NO2) as sole nitrogen sources.
Nitin S Butala, Joseph Oliver Falkinham
doaj   +1 more source

Microbial Reduction of Chromate in the presence of Nitrate by Three Nitrate Respiring Organisms.

open access: yesFrontiers in Microbiology, 2012
A major challenge for the bioremediation of toxic metals is the co-occurrence of nitrate, as it can inhibit metal transformation. Geobacter metallireducens, Desulfovibrio desulfuricans, and Sulfurospirillum barnesii are three soil bacteria that can ...
Peter eChovanec   +6 more
doaj   +1 more source

Effects of Fertilizer System on Soil Denitrification Enzyme Activity at Different Growth Stages of Maize in Hilly Regions of Middle Sichuan

open access: yesShuitu baochi yanjiu, 2012
The six kinds of fertilizer system are as follows: N(N),organic manure(OM),mixture of N,P and K(NPK),organic manure combined with N,P and K(OMNPK),and straw combined with N,P and K(RSDNPK).The fertilizer of each treatment was applied in the soil at ...
WANG Su-ping1   +4 more
doaj  

Synthesis of Silver Nanoparticles by a Bryophilous Rhizoctonia species

open access: yesNanomaterials and Nanotechnology, 2013
We demonstrate the synthesis of silver nanoparticles by a potentially benign species of bryophilous Rhizoctonia in two different media. The first medium supports fungal growth and the up‐regulation of nitrate reductase, while the second medium supports ...
Daniel B. Raudabaugh   +3 more
doaj   +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

open access: yesFrontiers 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   +8 more
doaj   +1 more source

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