Journal
WATER AND ENVIRONMENT JOURNAL
Volume 35, Issue 1, Pages 7-17Publisher
WILEY
DOI: 10.1111/wej.12491
Keywords
atrazine; Bacillus atrophaeus; biodegradation; microbial agent
Categories
Funding
- National Key Research and Development Plan of China [2016YFD0600204]
- China Postdoctoral Science Foundation [2017M611827]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
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Strain YQJ-6, identified as Bacillus atrophaeus, is capable of highly degrading atrazine with a degradation rate of approximately 99.2% in 7 days. It also has a high tolerance to atrazine, making it suitable for commercial microbial agent production to treat atrazine residues in soil. It is believed that strain YQJ-6 can be used to control atrazine pollution effectively.
A bacterial strain, YQJ-6, capable of highly degrading atrazine was isolated from soil. Strain YQJ-6 was identified asBacillus atrophaeusbased on 16S rRNA and the analysis of morphology as well as physiological and biochemical characteristics. The optimal pH value and temperature for strain YQJ-6 to grow and degrade atrazine were 7.0-7.5 and 30-40 degrees C, respectively. The degradation rate of atrazine (50 mg/L) by strain YQJ-6 reached approximately 99.2% in 7 days. Strain YQJ-6 also had a high tolerance to atrazine and could tolerate at least 1000 mg/L atrazine. In addition, strain YQJ-6 was successfully made into a microbial agent that is easy to commercialize and can be used to treat atrazine residues in soil. The microbial agent containing the strain YQJ-6 achieved good experimental results. It is believed that strain YQJ-6 can be used to control atrazine pollution.
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