Three growth rate experiments involving several sampling points were performed to investigate the previous finding that very low concentrations of HgCl2 inhibit the growth of murine lymphoblasts in vitro. However, results presented here do not confirm this, there being no significant differences between the three independent growth rate experiments.

Introduction Conclusions References

Introduction Conclusions References

1. The inactivation of antistaphylococcus bacteriophage suspended in infusion broth at pH 7.6 and 22 degrees C. by HgCl(2) proceeds according to the equation dP/dt = k [HgCl(2)] [P(o) - P(i)] over the range studied. 2. This inactivation can be reversed by precipitation of Hg(++) with H(2)S. In the present experiments the inactivation was carried out until only some 5 per cent of the initial pha...

Acidiphilium multivorum AIU 301 isolated from acid mineral water had strong arsenic resistance. This bacterium harbored a number of plasmids with different molecular sizes. A plasmid of 56 kbp, named pKW301, was isolated from A. multivorum AIU 301. When pKW301 was transferred into Escherichia coli JM109 by electroporation, an E. coli transformant carrying pKW301 exhibited resistance to sodium a...

Within ten days of incubation, freshly ripe tomato fruits (Ibadan local variety) obtained from a local market in Ile-Ife, Osun State, Nigeria had completely deteriorated and proteins which possessed cellulolytic activity were released. The enzyme was partially purified by a combination of ammonium sulphate precipitation, molecular exclusion chromatography and ion-exchange chromatography. The en...

Effect of mercury on blood and its components of fish Labeo rohita was carried out in this study. The LC50 dose of 57.074 mg/L and mercuric chloride exposure for 96 h resulted in significant changes in the physico-chemical properties such as hemoglobin, osmotic fragility and blood cell counts. Further, mercury exposure also caused a considerable reduction in the sulf-hydryl group of glutathione...