Az Eszterházy Károly Tanárképző Főiskola Tudományos Közleményei. 2004. Sectio Biologiae. (Acta Academiae Paedagogicae Agriensis : Nova series ; Tom. 25)
Zsoldos, F., Vashegyi, Á., Pécsváradi, A. and Bóna, L.: Aluminium toxicity in roots: correlation between root elongation and potassium fluxes in aluminium-sensitive and aluminium-tolerant cereal species
162 Zsoldos, F. et al. Jubilejnaja 50 GK Betadur (common w heat) 12 i (durumwheat) 10 6 4 2 0 4-" I GK Marco (triticale) ÜJU • Root • Shoot GK Wibro (rye) s i 50 0 50 0 50 Al treatments (pM) 50 Figure 1. Effects of Al treatments on the growth of different cereal seedlings. Plants were grown for 7 days in 0.5 mMCaS0 4 + 50 / 1MAICI3 solution as indicated on the graph, pH was 4.1. All data show the means±SD (n=8). Figure 2 shows the effect of short-term (6h) Al exposure on K +( 8 6Rb) influx of the roots and transport toward the shoots in different cereal seedlings at pH 4.1. From the data it is visible that Al treatments increased the K +( 8 6Rb) influx in roots in comparison with control plants. It is noteworthy that Al-induced K7( 8 6Rb) transport toward the shoot in rye was more moderate than in the other species. Figure 2. Effects of Al treatments on the Kf s 6Rb) uptake of the roots and translocation toward the shoots of different cereal seedlings. Plants were grown for 7 days in 0.5 mM CaS0 4 solution at pH 6.5. After the 7 t h day the seedlings were treated for 6h with 1 mM K (* 6Rb)Cl + 0.5 mM CaCl 2 + AICI3 solution as indicated on the graph, pH value was 4.1. All data show the means±SD (n=8).
