Results 111 to 120 of about 78,037 (160)

Glutamate synthase and nitrogen assimilation

Trends in Plant Science, 1998
The assimilation of ammonia by a wide variety of organisms is the primary route for the introduction of nitrogen into the biosphere. The assimilatory enzymes glutamine synthetase and glutamate synthase catalyze reactions that convert α-ketoglutarate and ammonia to glutamate, which is then used in a wide variety of biosynthetic reactions.
Stephen J. Temple, Carroll P. Vance, J. Stephen Gantt   +2 more
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Cd-Stress on Nitrogen Assimilation

Journal of Plant Physiology, 1999
Summary Nitrate assimilation in higher plants is the principal biosynthetic pathway leading to glutamate, required for synthesis of particular metabolites that participate in mechanisms of biochemical adaptation to heavy metal stress such as cadmium.
N. Boussama, O. Ouariti, A. Suzuki, M.H. Ghorbal   +3 more
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Nitrogen Fixation and Assimilation

2013
New crop plants suited to grow in semiarid environments will be fundamental to the future of agriculture. The interactions between nitrogen supply and water availability that determine yield and quality in crops grown in semiarid environments are being elucidated.
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Plant assimilation and nitrogen cycling

Plant and Soil, 1982
Nitrogen, an abundant and yet limiting nutrient for crop and food production, enters the plant as nitrate or ammonium, or as dinitrogen through biological fixation by procaryotes associated with the plant. Nitrogen incorporation into the soil-plant-animal system is ultimately restricted by rates of biological and industrial fixation.
A. A. Franco, D. N. Munns
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Regulation of Nitrogen Assimilation

1996
The preferred single nitrogen source for Escherichia coli and other enteric bacteria is ammonia, in at least 1 mM concentration. Although a number of other nitrogen containing compounds for example arginine, proline, glutamine, glutamate and aspartate in the case of E.
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Biochar leachate reduces primary nitrogen assimilation by inhibiting nitrogen fixation and microbial nitrate assimilation

Science of The Total Environment
Biochar contains biotoxic aromatic compounds, and their influence on nitrogen-fixing cyanobacteria, the critical nitrogen fixer in paddy soil, has never been tested. Here, the physiological, metabolomic, and transcriptomic analyses of Nostoc sp. PCC7120 in response to biochar leachate were performed.
Yuexi, Jiang, Ji, Liu, Xiaomeng, Wei, Rumeng, Wang, Yanyan, Li, Yang, Liu, Peng, Xiao, Yixiang, Cai, Jihai, Shao, Zhenhua, Zhang   +9 more
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Nitrogen assimilation in citrus trees

Physiologia Plantarum, 1980
AbstractAssimilation of 15N‐ammonium and 15N‐nitrate was examined in 3‐year‐old satsuma mandarin (Citrus unshiu Marcovitch) trees. Experiments were designed to establish the time course of incorporation of nitrogen just taken up into amino compounds.In fine roots, absorbed 15N‐ammonium was actively incorporated into glutamine and then into glutamic ...
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Nitrogen assimilation gets a HY5

Science Signaling, 2016
A transcription factor translocates from shoots to roots to coordinate carbon and nitrogen metabolism in plants.
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Nitrogen Assimilation: Enzymology in Ectomycorrhizas

1995
Ectomycorrhizas are symbiotic associations between woody plant roots, mainly trees, and fungi that form spontaneously under natural conditions and contribute to host growth.The beneficial effects of ectomycorrhizas are mainly due to the enhanced nutrient acquisition by the host as a result of nutrient uptake by the fungal symbionts (Melin and Nilsson ...
B. Botton, M. Chalot
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Ecological Aspects of Nitrogen Assimilation

1979
Publisher Summary Nitrogen assimilation has received considerable attention by plant physiologists in recent years, and this has resulted in a number of interesting and important discoveries. However, the majority of these investigations have been confined to crop plants and relatively little regard has been paid to ecological considerations.
J.A. Lee, G.R. Stewart
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