PubMed · 13628092
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M H PROCTOR, P W WILSON. 1959. Nitrogen fixation by Achromobacter spp.. https://doi.org/10.1007/bf00409346
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The O2 requirements for biomass production and supplying maintenance energy demands during the degradation of both benzene and ethylbenzene by Achromobacter xylosoxidans Y234 were measured using a newly proposed technique involving a bioscrubber. Using this approach, relevant microbial parameter estimates were directly and simultaneously obtained via linear regression of pseudo steady-state data. For benzene and ethylbenzene, the biomass yield on O2, Y(X/O2), was estimated on a cell dry weight (CDW) basis as 1.96 +/- 0.25 mg CDW mgO2(-1) and 0.98 +/- 0.17 mg CDW mgO2(-1), while the specific rate of O2 consumption for maintenance, m(O2), was estimated as 0.041 +/- 0.008 mgO(2) mg CDW(-1) h(-1) and 0.053 +/- 0.022 mgO(2) mg CDW(-1) h(-1), respectively.
Air-born mixed fungal and bacterial culture capable of complete degradation of ciliatine was isolated. The utilization of the natural organophosphonate proceeded in the phosphate independent manner. Enzymatic activity involved in ciliatine degradation studied in the fungal cell-free extract proved to be distinct from bacterial pathway described before.
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