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Transporters for nitrogenous compounds in plants
Plant Molecular Biology, 1994Cells are surrounded by a membrane which separates intracellular from extracellular processes and allows controlled contact and exchange of the intracellular space with the environment. Communication is made possible by integral membrane proteins at the interface between intra-and extracellular space, thus establishing the contact to neighbouring cells
W B, Frommer +5 more
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Membrane Rejection of Nitrogen Compounds
Environmental Science & Technology, 2001Rejection characteristics of nitrogen compounds were examined for reverse osmosis, nanofiltration, and low-pressure reverse osmosis membranes. The rejection of nitrogen compounds is explained by integrating experimental results with calculations using the extended Nernst-Planck model coupled with a steric hindrance model.
S, Lee, R M, Lueptow
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Selenium-nitrogen and tellurium-nitrogen compounds
Journal of Fluorine Chemistry, 1982Abstract Te-N and Se-N compounds are notoriously unstable. However, starting with H 2 NTeF 5 or (CH 3 ) 3 SiNHTeF 5 a variety of tellurium nitrogen compounds have been prepared, such as F 5 TeNSF 2 , F 5 TeNPF 3 , F 5 TeNCl 2 a.o. A crystal structure is given of F 5 TeNWCl 4 , and an electron diffraction structure of F 5 TeNCO. Whereas
H. Hartl +5 more
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Regulation of the Assimilation of Nitrogen Compounds
Annual Review of Biochemistry, 1978FORMATION OF GLUTAMATE AND GLUTAMINE FROM AMMONIA .... 1131 The Role oj Glutamate Dehydrogenase (GDH) 1131 Biochemistry oj GDH 1131 Physiology oj GDH production ....... .... 1131 Genetics oj GDH jormation .. 1131 The Role o/Glutamate Synthase (GOGAT) 1132 Biochemistry oj GaGA T 1132 Physiology of GOGAT production 1133 Genetics ...
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Journal of Medicinal Chemistry, 1987
New types of bronchodilator agents, bi- and tricyclic nitrogen bridgehead compounds with a pyrimidin-4(3H)-one ring, were synthesized and evaluated for bronchodilator activity against serotonin-, histamine-, and acetylcholine-induced spasms in the guinea pig Konzett-Rössler test. The structure-activity relationships are discussed.
I, Hermecz +6 more
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New types of bronchodilator agents, bi- and tricyclic nitrogen bridgehead compounds with a pyrimidin-4(3H)-one ring, were synthesized and evaluated for bronchodilator activity against serotonin-, histamine-, and acetylcholine-induced spasms in the guinea pig Konzett-Rössler test. The structure-activity relationships are discussed.
I, Hermecz +6 more
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Nitrogen Compounds in Atmospheric Precipitation
Water, Air, & Soil Pollution, 1995The paper presents results of a stoichiometric calculation of a nitrogen (N) compounds in precipitation of World Meteorological Organization's Global Atmosphere Watch (WMO GAW) stations. Long-term trends of ammonium sulphate ((NH4)2SO4) and ammonium nitrate (NH4NO3) contents i the North-West of Russia as well as in Byelorussia, Scandinavia, Western and
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