Structure and distribution of lignin in primary and secondary cell walls of maize coleoptiles analyzed by chemical and immunologial probes

auxinas auxine auxins biological development cell division cell walls coleoptiles crecimiento croissance darkness division cellulaire elektronenmikroskopie epiderme epidermis fitocroma growth hydrogen peroxide immunological techniques light ligninas lignine lignins luz microscopia microscopie microscopy obscuridad pared celular parenchyma parenchyme parenquima paroi cellulaire phytochrome plant tissues plantule seedlings technique immunologique tejidos vegetales zea mays