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. 2022 Mar 10;12:3992. doi: 10.1038/s41598-022-06737-z

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Plant stem electrical equivalent circuit. The epidermis is a single protective hard layer represented with a resistor. While, the cortex and vascular bundle elements consist of a membrane and inner fluid responsible for storing carbohydrates and the flow of water, nutrients, food, and organic materials represented by a resistor and a fractional-order capacitor. The pith is a spongy structured tissue described by a fractional-order capacitor.