METABOLISM OF SELECTED PESTICIDES BY MARINE MICOORGANISMS

A number of marine microorganisms including algae, bacteria, fungi and yeasts were tested for their ability to metabolize carbaryl (l-naphthyl-N-methyl-carbamate) and l-naphthol. None of the species included in the study were able to degrade carbaryl to a significant extent. Conversion of l-naphthol to ether-soluble and water-soluble metabolites was observed in cultures of Culcitalna achraspora, Halosphaeria mediosetigera, Humicola alopallonella, Aspergillus fumigatus, Serratia marina, Spirrillum sp. and Flavobacterium sp. The first three organisms were more effective in degrading l-naphthol to water-soluble metabolites than the remaining species. A very small amount of carbaryl was metabolized to water-soluble metabolites by the algae Cyclotella nana and Dunaliella tertiolecta. l-naphthol was more toxic to the algae Cyclotella and Dunaliella than the parent compound, carbaryl. Cyclotella was more sensitive to both carbaryl and l-naphthol than Dunaliella. Treatment with 2 times 10 to the minus 5 M carbaryl or l-naphthol reduced photosynthetic CO2 fixation in Cyclotella.

• Supplemental Notes:
  • Sponsoring Military Activity for this publication is the Office of Naval Research, Arlington, Virginia.
• Corporate Authors:

  Syracuse University Research Corporation

  P.O. Box 26, University Station
  Syracuse, NY  United States  13210
• Authors:
  • Sikka, H C
  • MIYAZAKI, S
  • Rice, C P
• Publication Date: 1973-6

Media Info

• Features: References;
• Pagination: 16 p.

Subject/Index Terms

• TRT Terms: Insecticides; Microorganisms; Pesticides; Water quality management
• Subject Areas: Environment; Marine Transportation;

Filing Info

• Accession Number: 00071654
• Record Type: Publication
• Source Agency: Syracuse University Research Corporation
• Report/Paper Numbers: #2
• Contract Numbers: N00014-72-C-0010
• Files: TRIS
• Created Date: Nov 12 1974 12:00AM