منابع مشابه
Analysis of nitrate reductase mRNA expression and nitrate reductase activity in response to nitrogen supply
Nitrate is one of the major sources of nitrogen for the growth of plants. It is taken up by plant roots and transported to the leaves where it is reduced to nitrite in the. The main objective of this research was to investigate stimulatory effects of sodium nitrate, potassium nitrate, ammonia and urea on the production/generation of the nitrate reductase mRNA in Triticum aestivum plants. The pl...
متن کاملIdentification of Ser-543 as the major regulatory phosphorylation site in spinach leaf nitrate reductase.
Spinach leaf NADH:nitrate reductase (NR) responds to light/dark signals and photosynthetic activity in part as a result of rapid regulation by reversible protein phosphorylation. We have identified the major regulatory phosphorylation site as Ser-543, which is located in the hinge 1 region connecting the cytochrome b domain with the molybdenum-pterin cofactor binding domain of NR, using recombi...
متن کاملStudies by electron-paramagnetic-resonance spectroscopy of the molybdenum centre of spinach (Spinacia oleracea) nitrate reductase.
The molybdenum centre of spinach (Spinacia oleracea) nitrate reductase has been investigated by e.p.r. spectroscopy of molybdenum(V) in reduced forms of the enzyme. The resting enzyme gives no signals attributable to Mo(V). However, on reduction with NADH, Mo(V) signals appeared at relatively short reaction times but decreased again on prolonged exposure to excess of the substrate as the enzyme...
متن کاملSpinach Nitrate Reductase : Effects of Ionic Strength and pH on the Full and Partial Enzyme Activities.
Initial velocity studies of immunopurified spinach nitrate reductase have been performed under conditions of controlled ionic strength and pH and in the absence of chloride ions. Increased ionic strength stimulated NADH:ferricyanide reductase and reduced flavin:nitrate reductase activities and inhibited NADH:nitrate reductase, NADH:cytochrome c reductase and reduced methyl viologen:nitrate redu...
متن کاملReconstitution in vitro of nitrate reductase from apoprotein of molybdenum-deficient spinach.
Hirasawa, E. & Suzuki, Y. (1975) Phytochemistry 14,99-101 McGowan, R. E. & Muir, R. M. (1971) Plant Physiol. 47, 644-648 Smith, T. A. (1974) Phytochemiktry 13,1075-1081 Smith, T. A. (1975) Phytochemistry 14,865-890 Smith, T. A. & Bickley, D. A. (1974) Phytochemistry 13, 2437-2443 Tabor, C. W. & Kellogg, P. D. (1970) J. Biol. Chem. 245, 54245433 Weaver, R. H. & Herbst, E. J. (1958) J. Biol. Chem...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1985
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.77.1.124