title: [Microbial degradation of soil polycyclic aromatic hydrocarbons (PAHs) and its relations to soil bacterial population diversity].
abstract: A laboratory simulation test was conducted to study the microbial remediation of soils contaminated by medium and low concentration polycyclic aromatic hydrocarbons (PAHs), and the relationships between the degradation of PAHs and the inoculated and indigenous microbes. The addition of high-effective PAHs-degrading bacteria promoted the biodegradation of soil PAHs, and the effect was remarkable in the first two weeks. The biodegradation of test PAHs was phenanthrene < anthracene < pyrene < benzo [a] pyrene < chrysene, and negatively correlated with the diversity/abundance of soil bacterial population. In the same treatments, soil bacterial population structure varied less with time, and hence, to increase the activity of indigenous microbes would be an effective way to remediate the farmland soils contaminated by medium and low concentration PAHs.
authors.affiliation: College of Marine Life Sciences, Ocean University of China, Qingdao, Shandong, China. fly830825@hotmail.com
authors.forename: Fei
authors.initials: F
authors.lastname: Wang
authors.forename: Zhen-cheng
authors.initials: ZC
authors.lastname: Su
authors.forename: Hui
authors.initials: H
authors.lastname: Yang
authors.forename: Xiao-jun
authors.initials: XJ
authors.lastname: Li
authors.forename: Guan-pin
authors.initials: GP
authors.lastname: Yang
authors.forename: Dian-bo
authors.initials: DB
authors.lastname: Dong
mesh_terms: D001419:Bacteria / Q000145:classification*; D001673:Biodegradation, Environmental; D044822:Biodiversity; D011084:Polycyclic Aromatic Hydrocarbons / Q000378:metabolism*; D012988:Soil Microbiology; D012989:Soil Pollutants / Q000378:metabolism*
chemical_list: D011084:Polycyclic Aromatic Hydrocarbons; D012989:Soil Pollutants