File S1 - Pressure–Induced Cell Wall Instability and Growth Oscillations in Pollen Tubes

Appendix S1. Figure S1, Displacement ur[10−3 µm] due to the effective turgor pressure (P = 0.3 MPa, pext = 0.05 MPa) acting on the cell wall as a function of the radial distance r from the pollen tube long axis. Figure S2, Tensile stress σrr (×10) due to the effective turgor pressure acting on the cell wall at the position where (a) the cylinder (shank) joins (b) the hemisphere (apex) as a function of the radial distance r from the pollen tube axis. Figure S3, Tensile stress difference σrr(apex) − σrr(distal) at the apex and the distal part. Figure S4, Tensile stress difference (upper curves) and the opposite case (lower curves) calculated at the boundary zone between the approximately hemispherical apical and the cylindrical distal part of the growing pollen tube. Figure S5, Tensile stress difference (upper curves) and the opposite case (lower curves) calculated at the boundary zone between the semispherical apical and the cylindrical distal part of the growing pollen tube. (PDF)