TY - JOUR
T1 - Effect of substrate interaction on oxidation of methane and benzene in enriched microbial consortia from landfill cover soil
AU - Lee, Eun Hee
AU - Park, Hyunjung
AU - Cho, Kyung Suk
N1 - Funding Information:
This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (MEST) (NRL program, R0A-2008-000-20044-0). It was also supported through the Advanced Environmental Biotechnology Research Center at Pohang University of Science and Technology (2009-0079504) by the NRF, MEST.
PY - 2011/1
Y1 - 2011/1
N2 - The interaction of methane and benzene during oxidation in enriched methane-oxidizing consortium (MOC) and in benzene-oxidizing consortium (BOC) from landfill cover soil was characterized. Oxidation of both methane and benzene occurred in the MOC due to the coexistence of bacteria responsible for benzene oxidation, as well as methanotrophs, whereas in the BOC, only benzene was oxidized, not methane. Methane oxidation rates in the MOC were decreased with increasing benzene/methane ratio (mol/mol), indicating its methane oxidation was inhibited by the benzene coexistence. Benzene oxidation rates in the MOC, however, were increased with increasing benzene/methane ratio. The benzene oxidation in the BOC was not affected by the coexistence of methane or by the ratio of methane/benzene ratio (mol/mol). No effect of methane or benzene was found on the dynamics of functional genes, such as particulate methane monooxygenase and toluene monooxygenase, in association with oxidation of methane and benzene in the MOC and BOC.
AB - The interaction of methane and benzene during oxidation in enriched methane-oxidizing consortium (MOC) and in benzene-oxidizing consortium (BOC) from landfill cover soil was characterized. Oxidation of both methane and benzene occurred in the MOC due to the coexistence of bacteria responsible for benzene oxidation, as well as methanotrophs, whereas in the BOC, only benzene was oxidized, not methane. Methane oxidation rates in the MOC were decreased with increasing benzene/methane ratio (mol/mol), indicating its methane oxidation was inhibited by the benzene coexistence. Benzene oxidation rates in the MOC, however, were increased with increasing benzene/methane ratio. The benzene oxidation in the BOC was not affected by the coexistence of methane or by the ratio of methane/benzene ratio (mol/mol). No effect of methane or benzene was found on the dynamics of functional genes, such as particulate methane monooxygenase and toluene monooxygenase, in association with oxidation of methane and benzene in the MOC and BOC.
KW - Methane
KW - benzene
KW - biodegradation
KW - interaction
KW - particulate methane monooxygenase (pmoA)
KW - toluene monooxygenase (tmoA)
UR - http://www.scopus.com/inward/record.url?scp=79960696170&partnerID=8YFLogxK
U2 - 10.1080/10934529.2011.586266
DO - 10.1080/10934529.2011.586266
M3 - Article
C2 - 21847790
AN - SCOPUS:79960696170
SN - 1093-4529
VL - 46
SP - 997
EP - 1007
JO - Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
JF - Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
IS - 9
ER -