Journal of Food, Agriculture and Environment

Impact of cadmium accumulation on physiological characteristics of two cabbage varieties during phytoremediation

Author(s):

Safwan Shiyab

Recieved Date: 2014-12-11, Accepted Date: 2015-03-20

Abstract:

Two cabbage (Brassica oleracea L.) varieties, green and red, were tested by applying phytoremediate soils contaminated with cadmium. Results of this study indicated that Cd at a higher concentration has a profound impact on physiology and internal structure of plants. Cadmium accumulation was greater in roots than shoots; this discovery indicates that Cd is not easily transferred into shoots from roots. Chlorophyll and relative water content (RWC) were significantly decreased with increasing Cd concentration. The enzyme activities of CAT, SOD and APX increased in seedlings under higher Cd concentrations. On the other hand, H₂O₂ content decreased in cadmium-stressed plants compared to the control. At high concentrations Cd-15 mM, plants showed a reduction in the number of palisade and spongy parenchyma cells and in cell size of leaves. Green cabbage had a higher capacity to uptake and translocation of Cd from contaminated soils than red.

Keywords:

Phytoremediation, cadmium, cabbage, antioxidant enzymes, chlorophyll

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Journal: Journal of Food, Agriculture and Environment
Year: 2015
Volume: 13
Issue: 2
Category: Environment
Pages: 262-268

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