Authors: Liu, Sen-Lin¹ liulsl@szu.edu.cn, Chen, Wei-Zhao¹, Liu, Gang¹, Xing, Miao¹

Superior Title: Journal of Industrial Microbiology & Biotechnology. Jul2011, Vol. 38 Issue 7, p855-861. 7p. 1 Color Photograph, 1 Diagram, 2 Charts, 4 Graphs.

Subject Terms: *ESCHERICHIA coli, *CLONING, *BACILLUS (Bacteria), *ETHYLENEDIAMINETETRAACETIC acid, *CELL culture, *PH effect, *METAL ions, *ENZYMES