This paper describes the purification of two antibiotic substances produced by strains of Actinomyces isolated from soil. Both organisms were isolated and studied by Dr. Albert Iielner of the University of Pennsylvania for their cultural characteristics and conditions for maximum production of the antibiotic substances. Animal experiments, determination of antibacterial spectrum, etc., were con...

The renewed interest in exploring various natural habitat/environments for discovering novel microbial sources as stable cholesterol oxidase producers is on the incline due to its broad-range of clinical and industrial applications. A search was conducted to isolate cholesterol oxidase producing bacteria from samples collected from different environments. A total of 98 bacterial isolates capabl...

Phi-3-T is a Bacillus subtifis temperate bacteriophage, isolated by Tucker (11) from the soil. Tucker has shown that infection by this phage causes, by lysogenic conversion of thyB. subtifis clones, prototrophy. The phage carries genetic information specifying the thymidylate synthetase activity, the thyP gene. Recently, we have reported purification of B. subtilis DNA segments achieved by EcoR...

Lignin is a major component of all plants, the degradation of which remains a major challenge to date owing to its recalcitrant nature. Several classes of fungi have been studied to carry out this process to some extent, but overall the process remains inefficient. We have isolated a novel alkalophilic dimorphic lignin-degrading Deuteromycete from soil, identified as "uncultured" and coded as M...

Following the Fukushima nuclear accident of March 11, 2011, soil and water were contaminated by radioactive cesium. Moreover, radioactive cesium was found in the ocean sludge in Tokyo Bay, carried by rivers flowing into the bay. The cesium adsorbed in the sludge cannot easily be removed. The objective of this study was to investigate the effect of the addition of bacteria to the micro-bubble ci...

As a national key protection and restoration project, ecological of Baiyangdian Wetland has an important significance for environmental management. the research area in Zaozhadian wetland, purification effect warm season cold aquatic plants was studied under different overflying water qualities. It provides theoretical experimental basis environment management wetlands. The results showed that ...

in this paper the risk of heavy metals discharged from the acidic sludge leachate into groundwater in a landfill located in fajr industrial area )garmsar( has been assessed using iwem software. acidic sludge as one of the industrial hazardous wastes is produced during purification of used oil with mienken )acidic( method. the concentrations of heavy metals )cd, ni, co, pb, zn, mn, cu( in the ac...

in order to detect hydrogen cyanide gene and to determine pseudomonas fluorescent efficiency in producing hydrogen cyanide for controlling the growth of rhizoctonia solanipathogen (the causal agent of sugar beet root and crown rot), samples were collected from sugar beet rhizosphere in sabzevar fields. after soil sampling and purification, 31 pseudomonas spp. isolates were separated on specific...

On the basis of key ways of oily waste treatment in Russia which has been described in the article and on the example of oil-contaminated soil (OCS) treatment there can be considered two most widespread technologies: bioremediation and thermal recovery. We developed the process flow sheet of the equipment (UT-2S) for industrial oily wastes treatment on the basis of high temperature air tight de...