Biodegradation mechanism of 1H-1,2,4-triazole by a newly isolated strain Shinella sp. NJUST26.

ABSTRACT: The highly recalcitrant 1H-1,2,4-triazole (TZ) is widely used in the synthesis of agricultural pesticide and considered to be an environmental pollutant. In this study, a novel strain NJUST26 capable of utilizing TZ as the sole carbon and nitrogen source, was isolated from TZ-contaminated soil, and identified as Shinella sp. The biodegradation assays suggested that optimal temperature and pH for TZ degradation by NJUST26 were 30 °C and 6-7, respectively. With the increase of initial TZ concentration from 100 to 320 mg L(-1), the maximum volumetric degradation rate increased from 29.06 to 82.96 mg L(-1) d(-1), indicating high tolerance of NJUST26 towards TZ. TZ biodegradation could be accelerated through the addition of glucose, sucrose and yeast extract at relatively low dosage. The main m

SUBMITTER: Wu H 

PROVIDER: S-EPMC4951651 | biostudies-literature | 2016 Jul

REPOSITORIES: biostudies-literature