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- W2357912441 abstract "Radiofrequency low temperature plasma was used to mutate the strain B8 which can adsorb nickel ions,and the adsorptive ability of the mutant was tested.The experiments show that the optimum mutagenic conditions of B8 by plasma are as follows: the mutation time of 3 min,the mutation power of 50~65 W,the carrier gas of N2 and the carrier gas pressure of 20 Pa.The mutant Ni12 with high adsorptive ability was screened from the mutant strains of B8 mutated under above conditions,and the nickel ion adsorption capacity of the mutant Ni12 reaches 136.7 mg g 1(dry bacteria),which is 11.7% higher than that of raw strain B8.The genetic stability of mutant Ni12 can maintain in 5 generations.The mechanism study shows that the extra cellular polymer is an important factor affecting the adsorption of nickel ions.After the formation of mutant Ni12 biofilm on the porous ceramics,from solution with nickel ion concentration of 50 mg L 1,the nickel ion adsorption ratio of Ni12 reaches 86%.The result of 16S rDNA sequence analysis indicates that the mutant Ni12 is Pseudomonas cedrina.The advantage of mutagenesis of raw strain B8 by radiofrequency low temperature plasma is its high efficiency,and the inheritance of mutant strain Ni12 is stable.Therefore,it has promising prospect of using it to treat the wastewater containing nickel ions." @default.
- W2357912441 created "2016-06-24" @default.
- W2357912441 creator A5045516155 @default.
- W2357912441 date "2013-01-01" @default.
- W2357912441 modified "2023-09-23" @default.
- W2357912441 title "Mutation Breeding of Nickel-adsorbed Bacteria B8 by Low Temperature Plasma" @default.
- W2357912441 hasPublicationYear "2013" @default.
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