Responses of the anaerobic bacterial community to addition of organic C in Chromium(VI)- and Iron(III)- amended microcosms

Article Abstract:

A study was conducted on the effect of various concentrations of Cr(VI) on anaerobic bacterial communities using microcosms amended with either glucose or protein. It was observed that a viable anaerobic bacterial community was present in the Cr(VI)- contaminated soil, but it could affect the soil biodegradation potential when its composition is altered.

Soil pollution, Anaerobic bacteria

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Effect of nutrient periodicity on microbial community dynamics

Article Abstract:

The effect of substrate pulses on the physiological activity and the composition of a mixed microbial community are investigated. The results have shown the dynamic nature of microbial communities exposed to even simple and regular environmental discontinuities when a substantial pool of species that can catabolize the limiting substrate is present.

Microbial populations, Acclimatization, Acclimatization (Biology), Catabolism

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Soil microbial community responses to additions of organic carbon substrates and heavy metals (Pb and Cr)

Article Abstract:

Microcosms are used to segregate the effects of two heavy metals (Pb and Cr) and also explore the impact of aromatic hydrocarbons on microbial community structure and function. One of the two energy substrates (glucose or xylene) is added to provide the necessary force for selection to operate and drive changes in community composition.

Industrial Organic Chemicals, Petrochemical Manufacturing, Cyclic Crude and Intermediate Manufacturing, Aromatic Hydrocarbons, Xylenes, Microbial growth, Xylene, Heavy metals, Chemical properties

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