Sugar uptake by the dermal transfer cells of developing cotyledons of Vicia faba L.. Mechanism of energy coupling

absorption de substances nutritives atpasa atpase cell membranes cells cellule cotiledones cotyledons cytochemie enzimas enzyme enzymes epiderme epidermis fer floema fructosa fructose glucosa glucose hierro iron membranas celulares membrane cellulaire nutrient uptake pflanzenphysiologie ph phloem plant tissues plasmamembran protoplaste protoplastos protoplasts raffinose rafinosa saccharose sucre sucrosa sucrose sugar tejidos vegetales vicia faba