Microbial uptake and accumulation of (/sup 14/C Carbofuran) 1,3-dihydro-2,2-dimethyl-7 benzofuranylmethyl carbamate in twenty fungal strains isolated by miniecosystem studies
Studies have amply demonstrated that members of the microbial world vary widely in their response to pesticides and that several factors may influence the toxicity of pesticides. Similarly, the microbial tolerance of pesticides may be affected by growth conditions, physiological conditions of cells and various stress factors which might exist in natural population. The pesticides are incorporated into microorganisms by an active or passive accumulation mechanism. Most observations of pesticide accumulation within the cells were recorded with chlorinated hydrocarbons. It was found that not only live bacterial cells, but autoclaved cells also, show a similar uptake of pesticides. Since aquatic microorganisms and plankton in freshwater and marine environments are an important nutrient source for a broad spectrum of aquatic filter-feeding organisms, their accumulation of pesticides can constitute a hazardous link in the food chain to fish and higher vertebrates.
- OSTI ID:
- 6647760
- Journal Information:
- Bull. Environ. Contam. Toxicol.; (United States), Vol. 41:1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
59 BASIC BIOLOGICAL SCIENCES
CARBON 14 COMPOUNDS
UPTAKE
FURANS
ALDRIN
ALGAE
BIOLOGICAL STRESS
FOOD CHAINS
FUNGI
AROMATICS
CHLORINATED AROMATIC HYDROCARBONS
HALOGENATED AROMATIC HYDROCARBONS
HETEROCYCLIC COMPOUNDS
INSECTICIDES
LABELLED COMPOUNDS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PESTICIDES
PLANTS
560300* - Chemicals Metabolism & Toxicology
550201 - Biochemistry- Tracer Techniques