Summary
A nitrate-reducing enzyme system is active in citrus tree leaf fragments. The system is inactivated in disrupted and damaged cells of leaf macerate. The measurement of nitrite as an indication of nitrate reductase activity is some times misleading because of its rapid disappearance due to high nitrite reductase activity.
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References
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Contribution from the National and University Institute of Agriculture, Rehovot, Israel. 1964 Series, No. 710-E.
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Bar-Akiva, A., Sternbaum, J. Nitrate reduction in citrus tree leaves. Plant Soil 23, 141–144 (1965). https://doi.org/10.1007/BF01349125
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DOI: https://doi.org/10.1007/BF01349125