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The effect of extracellular DNA (eDNA) on bacterial attachment was characterized using Escherichia coli, DNase I, and several different kinds of DNA. Here, we showed that eDNA enhanced bacterial attachment to solid surface in a concentration-dependent way. Either plasmid DNA or chromosome DNA, even or eukaryotic DNA fragments showed the promotion effect, suggesting that the effect of DNA on bacterial...
A bacterium(strain DL-1) capable of growing with 1,2-dichlorobenzene as sole carbon and energy sources was isolated from rhizosphere soil in phragmites wetland by using the enrichment culture contaminated with 1,2-dichlorobenzene concentration gradient of 20, 40, 60, 80, 120, 160 and 200 mg·L-1. It was identified as Bacillus cereus by 16S rDNA gene sequence analysis and the bacterial culture characteristics,...
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