Microbial metabolism of propanil and 3,4-dichloroaniline

• Published in: Pesticide biochemistry and physiology Vol. 17; no. 3; pp. 224 - 231
• Main Authors: Zeyer, J., Kearney, P.C.
• Format: Journal Article
• Language: English
• Published: Elsevier Inc 01.01.1982
• Subjects: Pseudomonas
• ISSN: 0048-3575; 1095-9939
• DOI: 10.1016/0048-3575(82)90133-X

A Pseudomonas sp. which grew on 4-chloroaniline as a sole source of carbon and nitrogen was able to degrade 15% of 0.05 m M [ 14C]3,4-dichloroaniline to 14CO 2 within 10 days in presence of 1.5 m M 4-chloroaniline. The catabolic enzymes which degraded 3,4-dichloroaniline to CO 2 were inducible by 4-chloroaniline and by 3,4-dichloroaniline. However, their activity was much lower on 3,4-dichloroaniline than on 4-chloroaniline. The strain showed no significant growth on 3,4-dichloroaniline as a sole source of carbon and nitrogen. Soils supplemented with [ring- 14C]propanil and the Pseudomonas sp. evolved 25–50% 14CO 2 within 5 days. The 14CO 2 evolution remained below 1% in absence of the Pseudomonas sp.