Cadmium phytoremediation potential of Gnaphalium affine D. Don and physiological response in metal tolerance. Issue 4 (July 2020)

• Record Type: Journal Article
• Authors: Li, Qiqian; Liu, Xuhui; Qin, Yongrong
• Is Part Of: IOP conference series. Volume 546:Issue 4(2020)
• Publication Date: 2020-07
• Subjects: Earth sciences -- Periodicals; Environmental sciences -- Congresses; Environmental sciences -- Periodicals; 550.5
• DOI: 10.1088/1755-1315/546/4/042029
• Languages: English
• ISSNs: 1755-1307

Abstract

Abstract: In this study, the plant growth, physiological responses and phytoremediation potential of the herbaceous plant Gnaphalium affine D. Don were evaluated in varying extents of Cd contaminated soil and 40 days cultivation. The results demonstrated that the plant had a high Cd tolerance of up to 300 mg.kg -1 in which Cd content in roots and shoots reached a maximum of 733.9 and 404.6 mg.kg -1 respectively. Cd exposure enhances the malondialdehyde (MDA) level and antioxidative response (SOD, POD and CAT) in shoots of Gnaphalium affine D. Don. The bioconcentration factor (BCF) values in all treatments were greater than 1 and the translocation factor (TF) values were almost 2 at the high Cd concentration treatments. These findings indicated that Gnaphalium affine D. Don as a Cd-accumulator can be considered as a potential candidate for phytoremediation in Cd polluted sites.