Effect of heavy-metal on synthesis of siderophores by Pseudomonas aeruginosa ZGKD3

International Conference on Energy Engineering and Environmental Protection 2016

能源学;生态环境科学

Shi, Peili^1 ; Xing, Zhukang^2 ; Zhang, Yuxiu^1 ; Chai, Tuanyao^3

Department of Environmental and Biological Engineering, School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), D11 Xueyuan Road, Beijing

100083, China^1

Huozhou Secondary School of Shanxi, Huozhou

031400, China^2

College of Life Science, University of Chinese Academy of Sciences, A19 Yuquan Road, Beijing

100049, China^3

关键词: CD tolerance;    Contaminated soils;    Heavy metal contaminated soils;    Metal tolerance;    Phytoremediation;    Plant growth;    Pseudomonas aeruginosa;    Siderophores;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/52/1/012103/pdf
DOI  :  10.1088/1742-6596/52/1/012103

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Most siderophore-producing bacteria could improve the plant growth. Here, the effect of heavy-metal on the growth, total siderophore and pyoverdine production of the Cd tolerance Pseudomonas aeruginosa ZGKD3 were investigated. The results showed that ZGKD3 exhibited tolerance to heavy metals, and the metal tolerance decreased in the order Mn2+>Pb2+>Ni2+>Cu2+>Zn2+>Cd2+. The total siderophore and pyoverdine production of ZGKD3 induced by metals of Cd2+, Cu2+, Zn2+, Ni2+, Pb2+and Mn2+were different, the total siderophore and pyoverdine production reduced in the order Cd2+>Pb2+>Mn2+>Ni2+>Zn2+>Cu2+and Zn2+>Cd2+>Mn2+>Pb2+>Ni2+>Cu2+, respectively. These results suggested that ZGKD3 could grow in heavy-metal contaminated soil and had the potential of improving phytoremediation efficiency in Cd and Zn contaminated soils.