title: Fibrillar pectin and contact cation exchange at the root surface.
mesh_terms: D000327:Adsorption; D004553:Electric Conductivity; D007474:Ion Exchange; D010368:Pectins; D010944:Plants / Q000378:metabolism / Q000648:ultrastructure*; D012987:Soil
chemical_list: D012987:Soil; D010368:Pectins