Effect of metal-rich sludge amendments on the soil microbial community

Article Abstract:

A study was conducted to determine the impact of metal-rich sludge amendments on various microbial community-based measurements such as phospholipid fatty acid (PLFA), the Biolog system, and the thymidine incorporation technique. Evidence suggests that community tolerance to specific metals such as copper, zinc, and nickel increased when the same metal was added to the soil. Furthermore, there were indications of cotolerance to metals whose concentration had not been heightened by the sludge treatment.

Environmental aspects, Metals, Metals (Materials), Microbial contamination, Microbial populations, Sludge

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Biodegradation of dimethylsilanediol in soils

Article Abstract:

The production of 14CO2 from (14C)dimethylsilanediol in soil indicates that the dimethylsilanediol present in soils is biodegradable. A fungus, Fusarium oxysporum Schlechtendahl, and a bacterium, an Arthrobacter species, which are capable of cometabolizing dimethylsilanediol are isolated. The addition of the dimethylsilanediol analogs, 2-propanol or dimethylsulfone, in soil enhances the rates of degradation.

Analysis, Biodegradation, Soil microbiology

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