Diversity of alkane hydroxylase genes on the rhizoplane of grasses planted in petroleum-contaminated soils.

ABSTRACT: The study investigated the diversity and genotypic features of alkane hydroxylase genes on rhizoplanes of grasses planted in artificial petroleum-contaminated soils to acquire new insights into the bacterial communities responsible for petroleum degradation in phytoremediation. Four types of grass (Cynodon dactylon, two phenotypes of Zoysia japonica, and Z. matrella) were used. The concentrations of total petroleum hydrocarbon effectively decreased in the grass-planted systems compared with the unplanted system. Among the representative alkane hydroxylase genes alkB, CYP153, almA and ladA, the first two were detected in this study, and the genotypes of both genes were apparently different among the systems studied. Their diversity was also higher on the rhizoplanes of the grasses than in u

SUBMITTER: Tsuboi S 

PROVIDER: S-EPMC4575313 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature