Metabolism of the herbicide atrazine by Rhodococcus strains

Appl Environ Microbiol. 1993 Jun;59(6):1955-9. doi: 10.1128/aem.59.6.1955-1959.1993.


Rhodococcus strains were screened for their ability to degrade the herbicide atrazine. Only rhodococci that degrade the herbicide EPTC (s-ethyl-dipropylthiocarbamate) metabolized atrazine. Rhodococcus strain TE1 metabolized atrazine under aerobic conditions to produce deethyl- and deisopropylatrazine, which were not degraded further and which accumulated in the incubation medium. The bacterium also metabolized the other s-triazine herbicides propazine, simazine, and cyanazine. The N dealkylation of triazine herbicides by Rhodococcus strain TE1 was associated with a 77-kb plasmid previously shown to be required for EPTC degradation.

MeSH terms

  • Atrazine / metabolism*
  • Bacteriological Techniques
  • Biodegradation, Environmental
  • Culture Media / chemistry
  • Plasmids
  • Rhodococcus / genetics
  • Rhodococcus / metabolism*


  • Culture Media
  • Atrazine