Results 41 to 50 of about 727,566 (361)

Extracellular electron transfer-dependent anaerobic oxidation of ammonium by anammox bacteria

open access: yesNature Communications, 2019
Anaerobic ammonium oxidation (anammox) bacteria contribute significantly to the global nitrogen cycle and play a major role in sustainable wastewater treatment.
D. R. Shaw   +8 more
semanticscholar   +1 more source

DIFFERENT NITRATE AND AMMONIUM LEVELS MEDIA ON CHANGES OF NITROGEN ASSIMILATION ENZYMES IN RICE

open access: yesBiovalentia: Biological Research Journal, 2021
Nitrogen (N) is an important nutrient for the growth and development of rice plants, required in large quantity and often limiting factor of rice yields.
Tri Handoyo   +2 more
doaj   +1 more source

Amine exchange into ammonium bisulfate and ammonium nitrate nuclei [PDF]

open access: yesAtmospheric Chemistry and Physics, 2010
Abstract. The exchange kinetics and thermodynamics of amines for ammonia in small (1–2 nm diameter) ammonium bisulfate and ammonium nitrate clusters were investigated using electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS). Ammonium salt clusters were reacted with amine gas at constant pressure to determine
Bzdek, B. R.   +2 more
openaire   +3 more sources

Endophytic Expression of nif Genes of Azoarcus sp. Strain BH72 in Rice Roots

open access: yesMolecular Plant-Microbe Interactions, 1999
Transcriptional fusions of gusA and gfp to the nifH gene as well as immunogold labeling with antibodies against the iron protein of nitrogenase revealed high nitrogenase gene expression levels of the endophyte Azoarcus sp.
Tanja Egener   +2 more
doaj   +1 more source

Anthocyanin Production through Callus Culture of Apple: Effect of Nitrogen Source and Concentration of Magnesium [PDF]

open access: yesمجله بیوتکنولوژی کشاورزی, 2015
Anthocyanins have attracted a great deal of attention due to their capability in protecting humans from chronic diseases. Production of natural anthocyanins from fresh plant material has many limitations. Therefore, the use of plant biotechnology for the
Farshad Kakavand, Nasser Mahna
doaj   +1 more source

Ammonium scandium tetrafluoride [PDF]

open access: yesActa Crystallographica Section C Crystal Structure Communications, 2006
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Nicholas F. Stephens, Philip Lightfoot
openaire   +4 more sources

Metabolic and Transcriptional Profiles of Dunaliella viridis Supplemented With Ammonium Derived From Glutamine

open access: yesFrontiers in Marine Science, 2018
Algal biofuel production requires an input of synthetic nitrogen fertilizer. Fertilizer synthesized via the Haber-Bosch process produces CO2 as a waste by-product and represents a substantial financial and energy investment.
Jacob Dums   +6 more
doaj   +1 more source

Ammonium Oxathioamidate

open access: yesMolbank
Ammonium oxathioamidate (1) was synthesised by the reaction between O-ethyl-thioxamate (oxalic acid-1-amide-2-O-ethyl ester) and ammonium hydrogen carbonate in water solution. Compound 1 was fully characterised by both microanalytical (elemental analysis, melting point determination) and spectroscopic means (FT-IR and NMR spectroscopy).
M. Carla Aragoni   +7 more
openaire   +5 more sources

Function and Regulation of Ammonium Transporters in Plants

open access: yesInternational Journal of Molecular Sciences, 2020
Ammonium transporter (AMT)-mediated acquisition of ammonium nitrogen from soils is essential for the nitrogen demand of plants, especially for those plants growing in flooded or acidic soils where ammonium is dominant.
Dong-li Hao   +5 more
semanticscholar   +1 more source

Ammonium Does Not Induce Ammonium Absorption in Tomatoes [PDF]

open access: yesJournal of the American Society for Horticultural Science, 1998
We examined root ammonium absorption by tomato seedlings (Lycopersicon esculentum Mill. `T-5') after first exposure of the roots to ammonium. Some plants received a nutrient medium containing nitrate as the sole N source. In a second treatment, the leaves were sprayed daily with a urea solution, while the roots were in N-free medium.
Arnold J. Bloom, Bernard A. L. Nicoulaud
openaire   +2 more sources

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