- Bacterial degradation of fungicide captan.
Bacterial degradation of fungicide captan.
Journal of agricultural and food chemistry (2010-12-03)
Veena B Megadi, Preeti N Tallur, Sikandar I Mulla, Harichandra Z Ninnekar
PMID21121628
ABSTRACT
The phthalimide fungicide captan has been widely used to control plant pathogenic fungi. A strain of Bacillus circulans utilized the fungicide captan as sole source of carbon and energy. The organism degraded captan by a pathway involving its initial hydrolysis to yield cis-1,2,3,6-tetrahydrophthalimide, a compound without fungicidal activity. The formation of this compound was confirmed by HPLC, IR, NMR, and mass spectral analysis. The results also revealed that cis-1,2,3,6-tetrahydrophthalimide was further degraded to o-phthalic acid by a protocatechuate pathway. These findings indicated that there was a complete mineralization of fungicide captan by B. circulans.
MATERIALS