Abstract To mobilize sparingly available phosphorus (P) in the rhizosphere. many plant species secrete malate to release P sorbed onto (hydr)oxides of aluminum and iron (Fe). In the presence of Fe. malate can provoke Fe over-accumulation in the root apoplast. https://www.markbroyard.com/quick-sale-savannah-tropic-pure-argan-oil-hair-serum-125ml-oos-on-sale-mega-super/