Microbial Degradation of Cyclodiene Pesticides
Abstract
Decomposition of the pesticides aldrin and dieldrin by aquatic microorganisms may result in more harmful products affecting the ecosystem. Isolates from fresh, brackish, and littoral water were cultured using, variously, selective media, enriched laboratory ecosystems, and impregnated wood strips and assessed qualitatively and quantitatively for action on pesticides by thin-layer chromatography, gas-liquid chromatography, and 14C-labeled pesticide autoradiography. Cellulolytic Zylerion xylestrix grew well in media containing 10-500 micrograms/ml pesticide. Growth was stimulated by small quantities of the chemical and the fungus accumulated pesticides to levels 2000 times higher than the original medium concentration. A significant portion of the pesticides appeared to be chemically altered, but the products were not specifically identified.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1974
- Accession Number
- AD0778763
Entities
People
- Peter L. Sguros
Organizations
- Florida Atlantic University