Phytoextraction of Heavy Metals from Contaminated Soil by Co-Cropping Solanum nigrum L. with Ryegrass Associated with Endophytic Bacterium

作者：Zou, Xiao-Ling^*

来源：Separation Science and Technology (Philadelphia), 2015, 50(12): 1806-1813.

DOI：10.1080/01496395.2015.1014058

• phytoremediation
• wastewater irrigation
• qPCR
• Solanum nigrum L.
• ryegrass

A laboratorial study was performed to evaluate the impact of Microbacterium sp. JYC17 upon the growth and phytoextraction of heavy metals by a Cd-hyperaccumulator (Solanum nigrum L.) and a low-accumulating pasture grass (perennial ryegrass, Lolium perenne L.) in a co-cropping system in a farm soil that was historically irrigated with heavy metals contaminated wastewaters. The result demonstrated that the co-cropping system associated with JYC17 inoculation gave the highest phytoextraction efficiency of metals and reduced the concentrations of Cd and Pb in ryegrass to conform to the Chinese hygiene standards for animal feeds. This approach not only increased the phytoextraction efficiency of heavy metals but also simultaneously allowed agricultural activities with safe animal feed products in the metal-contaminated soil.

• 出版日期2015-8-13