Research Article
A Panax notoginseng Root Tip Meristem Biosensor and Its Sensing Kinetics for Five Important Nitrogen Nutrients
Figure 5
Current change rates and their hyperbolic fitting curves of the biosensors that were constructed with two-year-old P. notoginseng root tip meristems in sensing sodium nitrate at 10−22–10−20 mol/L (a), three-year-old P. notoginseng root tip meristems in sensing sodium nitrate at 10−23–10−21 mol/L (b), and four-year-old P. notoginseng root tip meristems in sensing sodium nitrate at 10−21–10−19 mol/L (c).
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