MICROBIAL SUCCESSIONS IN CYCLODIENE-ENRICHED ECOSYSTEMS AND ISOLATION OF APPARENT PESTICIDE DEPENDENTS

Author

• WAYNE ROBERT THOMANN

Author Type

Graduate Student

Date of Award

1976

Document Type

Thesis

Publication Status

Version of Record

Submission Date

October 2026

Abstract

Laboratory model ecosystems, enriched with aldrin and dieldrin, were employed to study pesticide-induced succession and to provide microorganisms which degrade these compounds. Seventy-two pesticide-tolerant bacteria were isolated and succession was demonstrated in all systems. Bioconcentration by an alga was observed in two of the microcosms. Gram-positive bacteria were not isolatable after pesticide enrichment, indicating a greater sensitivity to these compounds. Radioautograms showed that 80% of screened isolates were capable of varying degrees of pesticide degradation. Microbial response to the pesticides appeared to be related to the presence of other organic materials with the nutritionally poor ecosystem favoring pesticide destruction. Cometabolic tendencies were demonstrated by 4 isolates in the presence of pesticides augmented with glucose and peptone.

Extent

72 p.

Comments

FAU Electronic Theses and Dissertations Collection|Thesis (M.S.)--Florida Atlantic University, 1976.|Charles E. Schmidt College of Science|FAU Electronic Theses and Dissertations Collection

Recommended Citation

THOMANN, WAYNE ROBERT, "MICROBIAL SUCCESSIONS IN CYCLODIENE-ENRICHED ECOSYSTEMS AND ISOLATION OF APPARENT PESTICIDE DEPENDENTS" (1976). Electronic Theses and Dissertations 1970 - 1979. 477.
https://digitalcommons.fau.edu/etd_general_2/477

Identifier

FADT13779

Format

pdf