Anthracene degradation by an oligotrophic bacterium isolated from refinery soil

Degradation of explosive 2,4,6-trinitrotoluene by s-triazine degrading bacterium isolated from contaminated soil.

2,4,6-Trinitrotolene (TNT) is a military explosive and a predominant contaminant of soil and ground water at many sites of TNT production and processing in many countries. TNT is recalcitrant and has been shown to be toxic to aquatic and terrestrial organisms in the environment (Won et al. 1976). TNT can be degraded, mineralized, or conjugated into more complex products by a variety of microorg...

Isolation of a Dibenzothiophene Desulfurizing Bacterium from Soil of Tabriz Oil Refinery

An extremely oligotrophic bacterium, Rhodococcus erythropolis N9T-4, isolated from crude oil.

Rhodococcus erythropolis N9T-4, which was isolated from crude oil, showed extremely oligotrophic growth and formed its colonies on a minimal salt medium solidified using agar or silica gel without any additional carbon source. N9T-4 did not grow under CO(2)-limiting conditions but could grow on a medium containing NaHCO(3) under the same conditions, suggesting that the oligotrophic growth of N9...

Degradation of Pyridine by Micrococcus luteus Isolated from Soil.

An organism capable of growth on pyridine was isolated from soil by enrichment culture techniques and identified as Micrococcus luteus. The organism oxidized pyridine for energy and released N contained in the pyridine ring as ammonium. The organism could not grow on mono- or disubstituted pyridinecarboxylic acids or hydroxy-, chloro-, amino-, or methylpyridines. Cell extracts of M. luteus coul...

Multiphasic uptake of D-glucose by an oligotrophic marine bacterium

Uptake of D-glucose in the range 2.5 X lOP9 M to 4.0 X I O ~ M by an oligotrophic marine bacterium, LNB-155, could be represented by 4 phases of a single, multiphasic mechanism. Other kinetic models did not give a good fit. Sharp transitions occurred at about 1.6 X 1OV6 M, 10-5 M and 2 X 10-4 M. Values for K, and V,,, increased regularly upon transition to higher phases. Multiphasic uptake mech...

Degradation of anthracene by bacteria isolated from oil polluted tropical soils.

Four bacteria, identified as Pseudomonas aeruginosa, Alcaligenes eutrophus, Bacillus subtilis and Micrococcus luteus were isolated from crude oil polluted soils using anthracene as the sole carbon and energy source. All the organisms utilized n-hexadecane, n-tetradecane, diesel oil, engine oil and naphthalene as sole carbon sources. None could utilize hexane, cycloheptane, xylene, benzene, tolu...