Abstract
ADAPTIVE production of enzymes in higher plants is not widely recognized, although two examples have been reported1. Nitrate reductase systems are adaptive to nitrate and nitrite in micro-organisms2,3 and studies with cauliflower4 have suggested a similar adaptive character in higher plants. Tang and Wu5 obtained more direct evidence of the adaptive character of this enzyme in rice seedlings germinated for five days under sterile conditions and Rijven6 reported similar results for wheat embryos germinated for 24 hr. These experiments, however, involved relatively prolonged periods of contact between inducer and tissues undergoing both rapid cell division and expansion.
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References
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HEWITT, E., AFRIDI, M. Adaptive Synthesis of Nitrate Reductase in Higher Plants. Nature 183, 57–58 (1959). https://doi.org/10.1038/183057a0
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DOI: https://doi.org/10.1038/183057a0
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