Physiological Responses of Hydrilla verticillata to Cadmium and Cadmium Bioaccumulation

doi:10.11924/j.issn.1000-6850.2013-1581

Chinese Agricultural Science Bulletin ›› 2014, Vol. 30 ›› Issue (5): 249-253.doi: 10.11924/j.issn.1000-6850.2013-1581

Special Issue: 生物技术

• 23 • Previous Articles Next Articles

Physiological Responses of Hydrilla verticillata to Cadmium and Cadmium Bioaccumulation

Received:2013-06-06 Revised:2013-07-22 Online:2014-02-15 Published:2014-02-15

Abstract

Abstract: In order to evaluate the potential of phytoremediation application of Hydrilla verticillata, The accumulation of heavy metals and the changes of some physiological indexes for Hydrilla vericillata were investigated. The results showed that, compared with stems, leaves of Hydrilla accumulated higher concentrations of heavy metals. Moreover, the activities of SOD, POD and CAT first increased and then decreased as the Cd²⁺ concentration increased. The content of membranous peroxide MDA first decreased, and then remained stable and last increased. It concluded that activate the protective enzyme system could inhibit MDA formation. These results suggested that Hydrilla verticillata could accumulate a certain concentration of heavy metals, in a certain concentration range of heavy metals it exhibitted physiological adaptation. In summary, Hydrilla verticillata had the potential of phytoremediation.

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Physiological Responses of Hydrilla verticillata to Cadmium and Cadmium Bioaccumulation

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