Figure S1. Schematic of the HydR model and detailed illustration of radial water flow between the bark and the xylem in twigs. The apoplastic route refers to the flow through the cell walls around the protoplasts. The cell-to-cell route includes the symplastic pathway through plasmodesmata and the transcellular pathway across cell membranes. Because symplastic and transcellular pathways cannot be separated for water, they are grouped into the cell-to-cell route. Symbols: Ψx = osmotic potential of the perfused solution; Ψb = total bark water potential; Wb = bark water content; and D = twig diameter.

Table S1. Symbol, unit, default value and description of the model parameters and variables.

PCE_2424_sm_FigS1-TableS1.doc791KSupporting info item

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