Biodegradation of carbendazim by a novel actinobacterium Rhodococcus jialingiae djl-6-2

  • Chemosphere. 2010 Oct;81(5):639-44. doi: 10.1016/j.chemosphere.2010.08.040.
Zhichun Wang  1 ,  Yangyang Wang ,  Fenfen Gong ,  Juan Zhang ,  Qing Hong ,  Shunpeng Li
Affiliations
  • 1. Key Laboratory for Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China.
PMID: 20833408 DOI: 10.1016/j.chemosphere.2010.08.040
Abstract

A novel actinobacterial strain Rhodococcus jialingiae djl-6-2 capable of using carbendazim (MBC) as the sole carbon and nitrogen source for growth was used to investigate its metabolism pathway of MBC. The HPLC and MS/MS analysis showed that MBC was hydrolyzed to 2-aminobenzimidazole (2-AB) and then converted to benzimidazole or 2-hydroxybenzimidazole (2-HB). The conversion of 2-AB was inhibited by NH(4)NO(3). The benzene ring of 2-HB was further opened through meta (extradiol) catechol cleavage. The inoculation of strain djl-6-2 to MBC-contaminated soil resulted in a higher degradation rate than noninoculated soil, which indicated the potential of strain djl-6-2 in bioremediation of MBC polluted soil.

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