Microbial interactions for 2,4,6-Trinitrotoluene biotransformation /
(Bartha, 1990). Pure culture approach to biodegradation of
| Main Author: | |
|---|---|
| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1996.
|
| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | (Bartha, 1990). Pure culture approach to biodegradation of 2amDNT and 4amDNT, with the p-nitro group being more 2species > isolates. The growth, measured as optical density, advantages and disadvantages. Pure culture studies allow a Alcaligenes sp. Five of these isolates, Ent. sp. 15, Pseu. and mixed cultures in the aerobic biotransfonnation of TNT. as an isolate. It appears that faster transformation of TNT bacterial species, isolated from a munitions waste capabilities, and enhance the significance of genetic compounds, higher quantitative and qualitative biodegradative contaminated site in Illinois, were tentatively identified as exchange between different species leading to the evolution existing in environments containing xenobiotic compounds, for the complete biodegradation of certain xenobiotics, since for this study to investigate the system efficiency of pure function as a community. Microbial "teamwork" is required has been directed towards pure culture studies with very in the following order: 5-species > 4-species > 3-species > intermediates, and products, coupled with simplicity and is observed in mixed cultures as compared to pure cultures. little emphasis on mixed populations. Researchers have mixed populations have a higher resistance to toxic more detailed evaluation of pathways, enzymes, degradation Much of the research in the past on the biodegradation of TNT observed that, on many occasions, microorganisms capable of of novel degradative activities (Bull, 1980). Nine aerobic one Enterobacter sp., one Pseudomonas sp., and seven preferentially reduced over the o-nitro group. reactors containing Pseu. sp. 17 in mixed cultures, but not reproducibility for bioremediation of xenobiotics. However, Sorption/desorption processes were observed in certain sp. 17, and three Alc. sp. I 1 3, 11 5 and 122 were selected species. The average percentages of TNT transformations were than that of any single component species of that community the average sum of the transformations of the component The isolates were mixed in various combinations of doublets, the metabolic diversity of a microbial community is greater TNT transformation were higher for the mixed cultures than to the isolates. The major intermediates identified were triplets, quadruplets, and quintuplet. The percentages of was more pronounced in the mixed culture reactors as compared xenobiotic and natural recalcitrant products have numerous |
|---|---|
| Item Description: | "Major subject: Civil Engineering". In title, numerals are used. Vita. |
| Physical Description: | xi, 149 leaves : illustrations ; 28 cm. Also available online. Issued also on microfiche from Lange Micrographics. |
| Bibliography: | Includes bibliographical references. |