Nitrogen assimilation in soybean nodules
نویسندگان
چکیده
منابع مشابه
Role of nitrogen assimilation in seed development of soybean.
A nondestructive acetylene reduction assay for nitrogenase activity of soybean (Glycine max L. Merr) field plots is presented. Plots consisted of 120 x 150 x 30 centimeter boxes containing 65 plants. The plants were grown in a medium grade sand under controlled nutrient, moisture, and root temperature conditions. Acetylene at a concentration of 10 milliliters per liter was circulated through ma...
متن کاملEnzymes of ammonia assimilation and ureide biosynthesis in soybean nodules: effect of nitrate.
The effect of nitrate on N(2) fixation and the assimilation of fixed N(2) in legume nodules was investigated by supplying nitrate to well established soybean (Glycine max L. Merr. cv Bragg)-Rhizobium japonicum (strain 3I1b110) symbioses. Three different techniques, acetylene reduction, (15)N(2) fixation and relative abundance of ureides ([ureides/(ureides + nitrate + alpha-amino nitrogen)] x 10...
متن کاملAsparagine biosynthesis in soybean nodules.
Asparagine biosynthesis in soybean (Glycine max [L.] Merr.) nodules has been difficult to demonstrate due to the poor conversion of suspected immediate precursors to asparagine and the instability of the key enzyme asparagine synthetase. The present study was designed to explore the effects of two ammonium assimilation inhibitors on the metabolism of (14)CO(2) to [(14)C]asparagine and to demons...
متن کاملAsparagine formation in soybean nodules.
(15)NH(4) (+) and [(15)N](amide)-glutamine externally supplied to detached nodules from soybean plants (cv. Tamanishiki) were incorporated within nodule tissues by vacuum infiltration and metabolized to various nitrogen compounds during 60 minutes of incubation time. In the case of (15)NH(4) (+) - feeding, the (15)N abundance ratio was highest in the amide nitrogen of glutamine, followed by glu...
متن کاملExploring Symbiotic Nitrogen Fixation and Assimilation in Pea Root Nodules by in Vivo
Nitrogen (N) fixation and assimilation in pea (Pisum sativum) root nodules were studied by in vivo N nuclear magnetic resonance (NMR) by exposing detached nodules to N2 via a perfusion medium, while recording a time course of spectra. In vivo P NMR spectroscopy was used to monitor the physiological state of the metabolically active nodules. The nodules were extracted after the NMR studies and a...
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ژورنال
عنوان ژورنال: Soil Science and Plant Nutrition
سال: 1981
ISSN: 0038-0768,1747-0765
DOI: 10.1080/00380768.1981.10431260