Root exudate glycine synergistically promotes phytoremediation of petroleum-contaminated soil

The exploitation of petroleum, the production and use petroleum products causes pollution that is harmful to ecology environment. At present, hydrocarbon has become a universal concern in world. As one bioremediation methods, plant root exudate repair effect eliminating toxic substances To explore role exudates glycine phytoremediation petroleum-contaminated soil, seed germination pot experiments were carried out study effects on degradation hydrocarbons different plants soil types. results showed when concentration pollutants was constant, order rate eight ryegrass > sudan grass white clover tall fescue alfalfa pennisetum canine maize grass.1000 mg L −1 could effectively promote biomass rate. + clover. 18,000 kg reached 55.7%. All had highest height loamy while observed sandy ranging from 50.36% 59.36%. Among them, combined with 1000 59.36% soil. Ryegrass, potential remediate soils. In three types strong remediation efficiency, more significant after addition glycine. Therefore, can be planted as priority for oil field areas contaminated by hydrocarbons.