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We examined the extent of biodegradation of benzene, toluene, ethylbenzene and the three isomers of xylene (BTEX) as a mixture and from gasoline in four different sediments: the New York/New Jersey Harbor estuary (polluted); Tuckerton, N.J. (pristine); Onondaga Lake, N.Y. (polluted) and Blue Mtn. Lake, N.Y. (pristine). Enrichment cultures were established with each sediment using denitrifying, sulfidogenic,...
A stable and sediment-free, benzene mineralizing, sulfate-reducing culture that resisted repeated attempts at isolation was examined using molecular approaches such as traditional cloning and sequencing and a direct PCR fingerprinting method for 16S rRNA genes. Despite the culture's long exposure to benzene as the only carbon and energy source (over 3 years) and repeated dilutions of the original...
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