Andrea Migge
Bielefeld University
15 Papers
377 Citations
Andrea Migge is an academic researcher from Bielefeld University. The author has contributed to research in topics: Glutamine synthetase & Nitrate reductase. The author has an hindex of 12, co-authored 15 publications.
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Papers
Drought-Induced Effects on Nitrate Reductase Activity and mRNA and on the Coordination of Nitrogen and Carbon Metabolism in Maize Leaves
TL;DR: The coordination of N and C metabolism is retained during drought conditions via modulation of the activities of Suc phosphate synthase and NR commensurate with the prevailing rate of photosynthesis.
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Leaf-specific overexpression of plastidic glutamine synthetase stimulates the growth of transgenic tobacco seedlings.
TL;DR: It is suggested that in tobacco leaves, more Fd-GOGAT is present than required to meet the demands of primary ammonium assimilation and that there is no strong interdependence between GS-2 and Fd, GOGAT protein expression.
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A role for cytosolic glutamine synthetase in the remobilization of leaf nitrogen during water stress in tomato
Diana Bauer,Klaus Biehler,Heinrich P. Fock,Elisa Carrayol,Bertrand Hirel,Andrea Migge,Thomas W. Becker +6 more
TL;DR: A role of GS-I in the generation of glutamine for the transport of the nitrogen that is remobilized in tomato leaves in response to chronic water stress is suggested.
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Negative regulation of nitrate reductase gene expression by glutamine or asparagine accumulating in leaves of sulfur-deprived tobacco
TL;DR: The removal of reduced nitrogen from primary metabolism by redirection and storage as arginine, asparagine or glutamine combined with the down-regulation of nitrate reduction via glutamine- and/or asparagus-mediated repression of NR gene transcription may contribute to maintaining a normal N/S balance during sulfur-deprivation and indicate that the co-ordination of N- and S-metabolism is retained under these conditions.
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Regulation of nitrate reductase transcript levels by glutamine accumulating in the leaves of a ferredoxin-dependent glutamate synthase-deficient gluS mutant of Arabidopsis thaliana, and by glutamine provided via the roots
TL;DR: The ability of a ferredoxin-dependent glutamate synthase-deficient gluS mutant of A. thaliana to accumulate glutamine in the leaves when illuminated under conditions that favour photorespiration indicates that glutamine may not exert a negative control of the leaf nia2 transcript pool, and appears to argue against a role of glutamine as an effective repressor of nIA2 transcript accumulation.
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