Effect of Cadmium on Ion Uptake, Transpiration and Cytokinin Content in Wheat Seedlings
نویسندگان
چکیده
Sumarry. In wheat seedlings (Triticum durum), uptake of potassium and nitrate, transpiration and shoot growth were inhibited by adding cadmium to the nutrient medium. A sharp reduction in cytokinin content was observed within two hours of supplying cadmium. The reduction in cytokinin content was probably a result of hormone breakdown. In support of this, Cd-treatment elevated cytokinin oxidase activity. Similarities between the effects of cadmium on both cytokinin content and transpiration are discussed in terms of an involvement of the hormone in protecting plants from the toxic action of this heavy metal.
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