Nitrate Uptake and Induction of Nitrate Reductase in Excised Corn Roots
Open Access
- 1 November 1975
- journal article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 56 (5), 692-695
- https://doi.org/10.1104/pp.56.5.692
Abstract
The characteristics of nitrate uptake and induction of nitrate reductase were studied in excised roots of corn (Zea mays L.). Upon initial exposure to nitrate, the low initial rate of nitrate uptake gradually increased until a steady uptake rate was achieved in 1 to 2 hours depending on the NO3− concentration. The pattern was observed over a wide range (0.2-5 mm) of nitrate concentrations and was independent of the accompanying cation.Keywords
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