Apoplasm refers to the extracellular continuum formed by pectocellulosic walls and empty spaces between plant cells. Water and solutes can navigate by non-selective passive diffusion. In the roots, the symplasmic way is made obligatory, during the crossing of the endoderm, to allow the passage of the water and the solutes of the bark towards the central cylinder where the sap-conducting bundles sit, the frames of Caspary cells of the endoderm obstructing the apoplastic pathway for Angiosperms Dicotyledonous. Since the endoderm cells are U-thickened for Angiosperms Monocotyledonous, the passage is therefore symplastic through non-thickened cells of the endoderm, located generally opposite the poles of the conductive tissues. Notes and edit the code Appendicesmodify the code Related Articleschange the code

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