Abstract
The presence of Cd (control, 0.15, 1.50 and 15.0 mg Cd L−1) in the growing medium of two maize cultivars (Dekalb XL 72 AA and Paolo) lead to a decrease in the NO3¯ content in plant tissues. As a consequence, there was a loss of nitrate reductase activity. The results of a shock treatment with 15 mg Cd L−1 (after 24 h) and the assesment of the effect of Cd on the nitrate reductase de novo synthesis and stability suggest that Cd influences on the NO3¯ root uptake and translocation to the shoot, thereafter nitrate reductase activity loss.
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Abbreviations
- LSD0.05 :
-
less significant difference with 0.05 of limit of confidence, calculated by using the test of Duncan
- NR:
-
nitrate reductase
- gDW :
-
dry weight
- gFW :
-
fresh weight
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© 1996 Springer Science+Business Media Dordrecht
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Hernández, L.E., Carpena-Ruiz, R., Gárate, A. (1996). Influence of cadmium on the NO −3 assimilation of two cultivars of Zea mays . In: Van Cleemput, O., Hofman, G., Vermoesen, A. (eds) Progress in Nitrogen Cycling Studies. Developments in Plant and Soil Sciences, vol 68. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5450-5_34
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DOI: https://doi.org/10.1007/978-94-011-5450-5_34
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