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DEGRADATION OF ISATIN AND ANTHRANILIC ACID BY ACHROMOBACTER XYLOSOXIDANS N4 ISOLATED FROM DENIM-MANUFACTURING MILL SLUDGE

文献类型： 外文期刊

作者： Dong, Xiangrong 1 ; Wang, Yanping 1 ; Zhang, Peijuan 1 ; Tan, Zhongfang 1 ; Jiao, Zhen 1 ; Jin, Qingsheng 2 ;

作者机构： 1.Zhengzhou Univ, Coll Phys & Engn, Henan Key Lab Ion Beam Bioengn, Zhengzhou 450001, Peoples R China

2.Zhejiang Acad Agr Sci, Inst Crops & Utilizat Nucl Technol, Hangzhou 310021, Zhejiang, Peoples R China

关键词： Isatin;Anthranilic acid;Biodegradation;Achromobacter xylosoxidans;Denim-manufacturing mill sludge

期刊名称：FRESENIUS ENVIRONMENTAL BULLETIN （ 影响因子：0.489； 五年影响因子：0.479 ）

ISSN： 1018-4619

年卷期： 2016 年 25 卷 8 期

页码：

收录情况： SCI

摘要： Microorganisms from denim-manufacturing mill sludge (DMMS) were screened for their capacity to biodegrade indigo wastewater pretreated with laccase. A bacterial strain that utilizes isatin and anthranilic acid, the metabolites of indigo produced oxidatively by laccase, was isolated and characterized. Based on the 16S rRNA gene sequence and morphological, physiological and biochemical properties of the strain, it was identified as Achromobacter xylosoxidans N4. Anthranilic acid was detected by HPLC as a metabolite when isatin was added to the bacterial culture as the sole carbon and energy source. The N4 strain exhibited strong degradation of isatin and its metabolite anthranilic acid and was able to grow in MSM supplemented with 100 mg/L anthranilic acid with an initial pH value ranging from 4.0 to 9.0. This is the first report of a bacterium isolated from DMMS that can degrade isatin and anthranilic acid. These results indicate that the N4 strain has potential applications in the treatment of indigo wastewater.

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