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The influence of lead on structure of Cucumis sativus L. leaves

Mirosława Chwil

Department of Botany
Agricultural University in Lublin
Akademicka 15, 20-950 Lublin, Poland
e-mail: miroslawa.chwil@ar.lublin.pl

The cucumber seedlings were cultivated in the aquaculture at the Pb presence. Lead was applied as PbCl2 at four following rates: 0, 10, 20 and 40 mg dm-3. At every Pb level the comparison of the leaf blade morphology as well as density of stoma and trichomes distribution was made. The structure of the epidermis surface covering leaves was analysed in the scanning electron microscope. The plants examined at 40 mg PbCl2 dm-3 presence developed thinner leaf blades of considerably limited area as against the control group. Lead induced the changes in stoma distribution and trichomes. Area of epidermis cells covering the cucumber leaves showed less abundant cutin in relation to the control.

Chwil M., 2005. The influence of lead on structure of Cucumis sativus L. leaves. Folia Horticulturae 17/2: 11-22.