Several interelemental relationship have been examined in pot-cultivated wheat (Triticum aestivum, Giza 164) and faba bean (Vicia faba, Giza 461) growing naturally and irrigated by industrial effluents enriched with zinc. Zinc concentrations in this industrial waste water were about 5.5 mg L-1 (0.84 x 10-4 m mol mL-1). In response to industrial effluents, changes in ion distribution, concentration and pigment contents were found in wheat and faba bean plants. Industrial effluents induced an increase of pigment contents in wheat and decrease in faba bean. In all plant organs of wheat and faba bean, Zn concentration increased continuously with irrigation by industrial effluents. The increase in Zn concentration in wheat plants was found to be in the order root > leaf > stem. While, Zn concentrations in faba bean plants was in the order root > stem > leaf. There was also an increase of K and Na except for K in stems and roots of wheat plants. Moreover, Ca decreased except in stem and root in faba bean plants. Accumulation of Mg in wheat root was increased where the transport to leaves and stems was decreased. This situation was different in faba bean. The internal Fe concentration increased in all plant organs except in leaves of wheat, also its content decreased with time except in leaves of faba bean. When the soil was inoculated with vesicular arbuscular mycorrhizae, changes of ion concentration occurred, where both plants reduced their Zn concentrations but in wheat more than faba bean. This could be used for phytoextraction of Zn from soil contaminated by industrial effluents
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Wafaa Mohamed Shukry, 2001. The Effect of Industrial Effluents and Vesicular-Arbuscular Mycorrhizae on Nutrient Distribution and Concentration of Wheat and Bean Plants. Journal of Biological Sciences, 1: 689-693.
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