THE ASSIMILATION OF AMMONIUM AND NITRATE IONS BY TOBACCO PLANTS
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چکیده
منابع مشابه
Steady state analysis of nitrate-ammonium assimilation by phytoplankter? 2
The ammonium:nitrate delivery ratio to cells of Dunaliella tertiolecta in continuous culture had no effect on the ambient nitrate concentrations at steady state, indicating that the assimilation of these radicals is competitive, not suppressive, under nitrogen limiting conditions. The physiological parameters, C : cell and Chl: cell, were invariant over the range of delivery ratios. Cellular gr...
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This work is devoted to a study of the structural changes in a single crystal of ammonium nitrate, NH4NO3, doped with copper(II) cations by electron paramagnetic resonance. Ammonium nitrate crystallizes at atmospheric pressure in several polymorphic forms, phase VII → V → IV → III → II → I → melt, with transition temperatures of 103 K, 255 K, 305 K, 357 K, 398 K, and 443 K, respectively. The ai...
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Sputtering of condensed-phase ammoniumnitrate yields an extensivedistribution of negative cluster ions of the form [(NH4N03),N03]-, n 2 3. Collision-induced dissociation of mass-selected cluster ions suggests that the first two members of the series, n = 1 and n = 2, are missing because the ions rearrange to lose one or more ammonia molecules. Gradient-corrected density-functional calculations ...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1951
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)56106-8