Impact Factor:2.644
DOI number:10.3390/min11060622
Affiliation of Author(s):中南大学
Journal:MINERALS
Abstract:Bioremediation of Cd- (cadmium) contaminated soil using Cd-tolerant fungus is considered an eco-friendly and cost-effective technique. In this study, we isolated one fungal strain that was hyper-tolerant to Cd from a highly polluted river and conducted pot experiments to evaluate its effects on bioremediation. We found that the fungal strain belonging to the genus, Purpureocillium lilacinum, tolerated 12,000 mg/L Cd. SEM manifested that Cd can be bioaccumulated on the crumpled mycelial surface, generating plenty of metal precipitation particles. In addition, pot experiments showed that the inoculation of P. lilacinum N1 could reduce the total Cd content in soil (2.09% in low contaminated soil and 12.56% in high contaminated soil) and greatly promote plant growth (2.16 similar to 3.13 times). Although the Cd concentration of plants was increased by 112.8% in low contaminated soil and decreased by 9.5% in highly contaminated soil with the inoculation of P. lilacinum N1, the total uptake of Cd by plants was greatly improved-1.84 similar to 3.6 times higher than that in CK groups. All our results suggest that P. lilacinum N1 is a valuable candidate for the bioremediation of Cd-contaminated soils because of its dual effects on the total Cd content in soil and Cd uptake in plants.
Co-author:Haonan Huang, Shaodong Fu, Luhua Jiang, Yili Liang, Xueduan Liu, Huidan Jiang, Hongwei Liu*
First Author:Yan Deng
Indexed by:Journal paper
Document Code:622
Document Type:J
Volume:11
Issue:6
ISSN No.:2075-163X
Translation or Not:no
Included Journals:SCI