Effect of one night with “low light’on uptake, reduction and storage of nitrate in spinach
✍ Scribed by Eveliene Steingröver; Johan Siesling; Pieter Ratering
- Book ID
- 110898696
- Publisher
- John Wiley and Sons
- Year
- 1986
- Tongue
- English
- Weight
- 667 KB
- Volume
- 66
- Category
- Article
- ISSN
- 0031-9317
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The pericarp of the dormant sugarbeet fruit acts as a storage reservoir for nitrate, ammonium and α-amino-N. These N-reserves enable an autonomous development of the seedling for 8-10 d after imbibition. The nitrate content of the seed (1% of the whole fruit) probably induces nitrate-reductase activ
Michaelis-Menten uptake kinetics were observed at all light intensities. With constant illumination, the Vma x and K I in nitrate uptake over the natural light intensity range of 0 to 2000 pE were 0.343 pg-at NO3-N~g) -1 at protein-N h q and 26 #E, respectively. Nitrate uptake was inhibited at highe