Arabidopsis mutant analysis and gene regulation define a nonredundant role for glutamate dehydrogenase in nitrogen assimilation.

@article{MeloOliveira1996ArabidopsisMA,
  title={Arabidopsis mutant analysis and gene regulation define a nonredundant role for glutamate dehydrogenase in nitrogen assimilation.},
  author={R. Melo-Oliveira and Igor Carboni Oliveira and Gloria M. Coruzzi},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={1996},
  volume={93 10},
  pages={4718-23}
}
Glutamate dehydrogenase (GDH) is ubiquitous to all organisms, yet its role in higher plants remains enigmatic. To better understand the role of GDH in plant nitrogen metabolism, we have characterized an Arabidopsis mutant (gdh1-1) defective in one of two GDH gene products and have studied GDH1 gene expression. GDH1 mRNA accumulates to highest levels in dark-adapted or sucrose-starved plants, and light or sucrose treatment each repress GDH1 mRNA accumulation. These results suggest that the GDH1… CONTINUE READING
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