Cadmium accumulation and distribution in cucumber plant
2000
Moreno-Caselles, J. | Moral, R. | Perez-Espinosa, A. | Perez-Murcia, M.D.
An experiment developed in soilless culture was used to study the cadmium (Cd) accumulation, and distribution of Cd in cucumber (Cucumis sativus var. peonero-mixfl) plant. Four treatments were established (0, 5, 10, and 20 mg Cd+2 L-1). Uptake, and transport of Cd were increased with time, and Cd concentration in the nutrient solution. Fruit accumulation of Cd varied from 16 to 92 mg kg-1 depending on the treatments. The fresh weight, and dry matter accumulation of cucumber plant organs (roots, stem, leaves, and fruits) was affected by cadmium treatment. A decrease of the total, a, and b chlorophyll increasing Cd concentration in nutrient solution, and time of experiment were observed. The incidence of this metal on the content of chlorophyll b seem to be faster than chlorophyll a. Cucumber plant could be a feasible plant for pollution experiments due to their high sensibility, and transport efficiency.
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