Department of Environmental Science and Engineering, Ewha Womans University, Republic of Korea.
J Environ Sci Health A Tox Hazard Subst Environ Eng. 2011;46(9):997-1007. doi: 10.1080/10934529.2011.586266.
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.
研究了富含甲烷氧化菌（MOC）和垃圾填埋场覆盖土壤中苯氧化菌（BOC）中的甲烷和苯在氧化过程中的相互作用。由于存在负责苯氧化的细菌以及甲烷营养菌，因此在 MOC 中同时发生了甲烷和苯的氧化，而在 BOC 中仅发生了苯的氧化，而没有甲烷的氧化。随着苯/甲烷摩尔比（mol/mol）的增加，MOC 中的甲烷氧化速率降低，表明其甲烷氧化受到苯共存的抑制。然而，MOC 中的苯氧化速率随着苯/甲烷摩尔比的增加而增加。BOC 中的苯氧化不受甲烷共存或甲烷/苯摩尔比（mol/mol）的影响。在 MOC 和 BOC 中，甲烷和苯的氧化对功能基因（如颗粒状甲烷单加氧酶和甲苯单加氧酶）的动态没有影响。
