Bioremediation approaches for organic pollutants: a critical perspective

Actinomycetes benefaction role in soil and plant health

During 1914 to 1939, Selman A. Waksman had been consistently systematically screening soil bacteria and fungi to find an antibiotic for tuberculosis. In 1939, he discovers the effect of certain fungi specially actinomycetes on bacterial growth. In 1940, he was able to isolate an effective T.B. antibiotic, actinomycin and for this he got success in 1944, with the discovery of Spectromycin.For all this work in 1952, he got the Noble prize in physiological & medicine. ISSN: 2319-7706 Volume 3 Number 2 (2014) pp. 801-832 http://www.ijcmas.com

https://www.ijcmas.com/vol-3-2/Mukesh%20Sharma.pdf

Actinomycetes: Source, Identification, and Their Applications

Biological degradation of chlorophenols in packed-bed bioreactors using mixed bacterial consortia

Cesium, cadmium, cobalt, and strontium are four contaminants frequently found in soils at biotoxic levels. Introduction of certain nongenetically modified bacteria has been frequently suggested as a method for the immobilization of heavy metal contaminants in soil, thereby reducing runoff and bioavailability. In this study, the authors have used the polymerase chain reaction (PCR) and denaturing gradient gel electrophoresis (DGGE) to track the survival of the five bacterial species added to soil microcosms with and without the addition of a mixture of these metals. The PCR primers targeted conserved regions of the 165 rDNA molecular present in all bacteria. The reaction products were shown to reflect the relative abundance of the bacteria both in mixtures of pure cultures and against a background of all the eubacterial species present in the soil following inoculation. Three of the species (Pseudomonas aeruginosa FRD-1, Shewanella putrifaciens 200, and Desulfovibrio vulgaris Hildenborough) decreased rapidly following inoculation into both soils. The proportion of Alcaligenes eutrophus CH34 remained at a constant level throughout the 8-week experiment in both soil treatments. Sphingomonas aromaticivorans B0695 showed toxic metal-dependent survival in that its relative abundance dropped rapidly in pristine soil but remained at approximately inoculation levels throughout the experiment inmore » contaminated microcosms.« less

Fate of a metal-resistant inoculum in contaminated and pristine soils assessed by denaturing gradient gel electrophoresis

A case study of bioremediation of polluted soil: biodegradation and toxicity of chlorophenols in soil.

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A case study of bioremediation of polluted soil: biodegradation and toxicity of chlorophenols in soil.