Fig. 5From: Modelling wood formation and structure: power and limits of a morphogenetic gradient in controlling xylem cell proliferation and growthThree possible concentration profiles using XyDyS-DIF with fixed boundary conditions and parameters. a Without decay and with negligible dilutive effect. The profile is linear and depends on the total length of the file: The longer the file, the flatter the profile. b With decay and negligible dilutive effect. The profile reaches a stationary exponential shape. c With non-negligible dilutive effect and without decay. The profile reaches a stationary exponential shape only in the growing part of the file (CZ + EZ)Back to article page