Distribution of endophytic bacteria in Alopecurus aequalis Sobol and Oxalis corniculata L. from soils contaminated by polycyclic aromatic hydrocarbons.

ABSTRACT: The distributions of endophytic bacteria in Alopecurus aequalis Sobol and Oxalis corniculata L. grown in soils contaminated with different levels of polycyclic aromatic hydrocarbons (PAHs) were investigated with polymerase chain reaction followed by denaturing gradient gel electrophoresis technology (PCR-DGGE) and cultivation methods. Twelve types of PAHs, at concentrations varying from 0.16 to 180 mg·kg(-1), were observed in the roots and shoots of the two plants. The total PAH concentrations in Alopecurus aequalis Sobol obtained from three different PAH-contaminated stations were 184, 197, and 304 mg·kg(-1), and the total PAH concentrations in Oxalis corniculata L. were 251, 346, and 600 mg·kg(-1), respectively. The PCR-DGGE results showed that the endophytic bacterial communities in the

SUBMITTER: Peng A 

PROVIDER: S-EPMC3866203 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature