DEGRADATION OF TRIMETHYLBENZENE ISOMERS BY AN ENRICHMENT CULTURE UNDER N2O-REDUCING CONDITIONS

Authors
HANER A HOHENER P ZEYER J
Citation
A. Haner et al., DEGRADATION OF TRIMETHYLBENZENE ISOMERS BY AN ENRICHMENT CULTURE UNDER N2O-REDUCING CONDITIONS, Applied and environmental microbiology, 63(3), 1997, pp. 1171-1174
Citations number
43
Categorie Soggetti
Microbiology,"Biothechnology & Applied Migrobiology
Journal title
Applied and environmental microbiology → ACNP
ISSN journal
00992240
Volume
63
Issue
3
Year of publication
1997
Pages
1171 - 1174
Database
ISI
SICI code
0099-2240(1997)63:3<1171:DOTIBA>2.0.ZU;2-6
Abstract
A microbial culture enriched from a diesel fuel-contaminated aquifer w as able to grow on 1,3,5-trimethylbenzene (1,3,5-TMB) and 1,2,3-TMB un der N2O-reducing conditions, but it did not degrade 1,2,3-TMB. The oxi dation of 1,3,5-TMB to CO2 was coupled to the production of biomass an d the reduction of N2O. N2O was used to avoid toxic effects caused by NO2- accumulation during growth with NO3- as the electron acceptor. In addition to 1,3,5-TMB and 1,2,4-TMB, the culture degraded toluene, m- xylene, p-xylene, 3-ethyltoluene, and 4-ethyltoluene.