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Atrazine is a widely used herbicide, and because of its potential to seriously pollute soil and water resources, has attracted widespread attention. In this study, the bacterial strain LY-1 was isolated and identified as the species Arthrobacter. At present, there are many different atrazine-degrading bacteria that have been screened out, including Arthrobacter sp., Pseudomonas sp., and Shewanella sp. However, previous reports only studied their degradation effects and soil remediation capabilities under optimum conditions and there were few studies performed which took into account a wider array of environmental circumstances. This study investigated the degradation effects of LY-1, as well as its capacity for soil remediation, under various conditions. The strain had broad optimum ranges of temperature and pH and the additional carbon and nitrogen sources did not decrease the atrazine degradation rate. In addition, the soil remediation tests indicated that the strain LY-1 might be a good candidate for bioremediation of atrazine-polluted soil.

Isolating and Identifying the Atrazine-Degrading Strain Arthrobacter sp. LY-1 and Applying it for the Bioremediation of Atrazine-Contaminated Soil