Abstract
Marinobacter vinifirmus was shown to degrade toluene as sole carbon and energy source under aerobiosis and at NaCl concentrations in the range 30–150 g/L. Maximum toluene consumption rate, total CO2, and biomass productions were measured in the presence of 60 g/L of NaCl. Under these conditions, 90% of the carbon from toluene was recovered as CO2 and biomass. Maximum specific toluene consumption rate was about 0.12 mgC toluene mgC biomass−1 h−1 at NaCl concentrations between 30 and 60 g/L. It decreased to 0.03 mgC toluene mgC biomass−1 h−1 at 150 g/L. Besides toluene, M. vinifirmus degraded benzene, ethylbenzene, and p-xylene. Benzene and toluene were utilized to a lesser extent by another Marinobacter sp., Marinobacter hydrocarbonoclasticus.
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The authors thank Drs. Pierre Roger and Laurence Casalot from IRD for their suggestions on improving the manuscript, and Ophélie Philipot and Séverine Collin for their technical assistance.
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Berlendis, S., Cayol, JL., Verhé, F. et al. First Evidence of Aerobic Biodegradation of BTEX Compounds by Pure Cultures of Marinobacter . Appl Biochem Biotechnol 160, 1992–1999 (2010). https://doi.org/10.1007/s12010-009-8746-1
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DOI: https://doi.org/10.1007/s12010-009-8746-1