Note
Charles E. Schmidt College of Science
Member of
Contributors
Publisher
Florida Atlantic University
Date Issued
1974
EDTF Date Created
1974
Description
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. Growth was measured in terms of dry wt
and cell nitrogen. Small amounts of possible metabolites
were indicated in most isolate preparations. Cellulolytic Z. xylestrix grew well in media containing 10-500 ug/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. Uptake increased linearly with increasing
pesticide concentration. A significant portion of the
pesticides appeared to be chemically altered, but the
products were not specifically identified.
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. Growth was measured in terms of dry wt
and cell nitrogen. Small amounts of possible metabolites
were indicated in most isolate preparations. Cellulolytic Z. xylestrix grew well in media containing 10-500 ug/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. Uptake increased linearly with increasing
pesticide concentration. A significant portion of the
pesticides appeared to be chemically altered, but the
products were not specifically identified.
Language
Type
Form
Extent
109 p.
Subject (Topical)
Identifier
FA00000815
Additional Information
Charles E. Schmidt College of Science
Thesis (M.S.)--Florida Atlantic University, 1974.
Date Backup
1974
Date Created Backup
1974
Date Text
1974
Date Created (EDTF)
1974
Date Issued (EDTF)
1974
Extension
FAU
IID
FA00000815
Organizations
Attributed name: Florida Atlantic University
Person Preferred Name
Quevedo, Rafael A.
Graduate College
Physical Description
application/pdf
109 p.
Title Plain
Interactions between Microorganisms Isolated from Aquatic Environments and the Cyclodiene Organochlorine Pesticides Aldrin and Dieldrin
Use and Reproduction
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Origin Information
1974
1974
Florida Atlantic University
Boca Raton, Fla.
Physical Location
Florida Atlantic University Libraries
Place
Boca Raton, Fla.
Sub Location
Digital Library
Title
Interactions between Microorganisms Isolated from Aquatic Environments and the Cyclodiene Organochlorine Pesticides Aldrin and Dieldrin
Other Title Info
Interactions between Microorganisms Isolated from Aquatic Environments and the Cyclodiene Organochlorine Pesticides Aldrin and Dieldrin