Nitric oxide inhibits nitrate reductase activity in wheat leaves.

@article{Rosales2011NitricOI,
  title={Nitric oxide inhibits nitrate reductase activity in wheat leaves.},
  author={Eliana Paola Rosales and Mar{\'i}a Florencia Iannone and Mar{\'i}a Daniela Groppa and Mar{\'i}a Patricia Benavides},
  journal={Plant physiology and biochemistry : PPB},
  year={2011},
  volume={49 2},
  pages={
          124-30
        }
}
Nitrate reductase (NR), a committed enzyme in nitrate assimilation, is involved in the generation of nitric oxide (NO) in plants. In wheat leaf segments exposed to sodium nitroprusside (SNP) or S-nitrosoglutathione (GSNO), NR activity was significantly reduced to different degrees between 3 and 21 h, whereas its activity was partially recovered when the NO scavenger cPTIO was used. At 21 h, NR activity decreased from 38% with 10 μM SNP to 91% with 500 μM SNP, respect to the C values. S… CONTINUE READING
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