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Effect of nickel on the proliferation of nitrogen-fixing bacteria

, : Effect of nickel on the proliferation of nitrogen-fixing bacteria. Polish Journal of Natural Sciences 20(2): 595-603

A laboratory experiment was conducted to test the effect of nickel on the proliferation of the following soil bacteria suspended in liquid media: Azotobacter spp., Arthrobacter spp., Rhizobium leguminosarum bv. viciae and Bradyrhizobium spp. (lupini). The experiment was performed on 10 strains of each species, in three replications. Two types of microbiological media were used, i.e. standard and with an additional carbon source. Nickel was applied in the form of two compounds, NiCl2 center dot 6H(2)O and NiSO4 center dot 7H(2)O in the following doses (mg Ni center dot dm(-3) of the medium): 2, 4, 6, 8, 10, 100, 200, 300, 400. Laboratory studies revealed that the tested microorganisms showed various degrees of sensitivity to nickel introduced into the growth media. Among the bacteria analyzed, Azotobacter spp. was found to be most sensitive to nickel compounds, followed by Arthrobacter spp., Bradyrhizobium spp. (lupini) and Rhizobium leguminosarum bv. viciae, which was most nickel-resistant. NiCl2 center dot 6H(2)O was more toxic to Arthrobacter spp. and Rhizobium leguminosarum bv. viciae, while NiSO4 center dot 7H(2)O to Azotobacter spp. and Bradyrhizobium spp. (lupini).


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Kimura, T.; Yagi, F.; Yoshizumi, A., 2013: Application of Level of Care Utilization System for Psychiatric and Addiction Services (LOCUS) to psychiatric practice in Japan: a preliminary assessment of validity and sensitivity to change. We applied an American medical necessity scale, Level of Care Utilization System for Psychiatric and Addiction Services (LOCUS), to psychiatric practice in Japan. This is an exploratory analysis of empirical data of 272 patients. We examined the r...

Vigneron, J., 1978: Brenthis daphne in the cher and indre departments france. The presence of Brenthis daphne Schiff. in the Foret de Choeurs (Cher and Indre Departments) was noted in 1973. In 1977, a specimen was found in the Foret de Saint-Thibault (4 km east of Lignieres, Cher). The species appeared associated with raspb...

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Gallagher J.P.; Phelan K.D.; Twery M.J.; Hasuo H., 1990: Pertussis toxin blocks postsynaptic but not presynaptic actions of baclofen in the rat dorsolateral septal nucleus. Bowery, N G , H Bittiger And H -R Olpe (Ed ) Gaba-B Receptors in Mammalian Function; 1st International Gaba-B Symposium, Cambridge, England, Uk, September 1989 Xviii+442p John Wiley And Sons, Inc : New York, New York, Usa; Chichester, England, Uk Illus 408

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