Comparison of the activity of subsurface and surface microorganisms and their anaerobic transformation of heterocyclic compounds
Our interest in this research was mainly to compare the physiological characteristics of microorganisms derived from subsurface and surface environments and their ability to transform heterocyclic aromatic chemicals. We selected essentially indole and pyridine compounds as representatives of heterocyclic compounds. The samples investigated originated from the subsurface drillings at the Savannah River Plant, from surface samples in Pennsylvania, from municipal sewage of State College, Pennsylvania, and from pyridine-contaminated sites at Indianapolis. At different physiological conditions (aerobic, denitrifying, sulfate-reducing or methanogenic), different groups of microorganisms are active. Not only the thermodynamics of microbial physiology vary, but different metabolic pathways are used by the various types of microbial processes. Therefore, it was important to determine under which physiological conditions a compound was metabolized, and to clarify the metabolic conditions under which intermediate(s) were produced. 29 refs.
- Research Organization:
- Pennsylvania State Univ., University Park, PA (USA). Dept. of Agronomy
- Sponsoring Organization:
- DOE/ER
- DOE Contract Number:
- FG02-87ER60556
- OSTI ID:
- 6246348
- Report Number(s):
- DOE/ER/60556-T2; ON: DE91008839
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
INDOLES
BIODEGRADATION
PYRIDINE
AEROBIC CONDITIONS
ANAEROBIC CONDITIONS
BIOLOGICAL PATHWAYS
HETEROCYCLIC COMPOUNDS
METABOLISM
METABOLITES
MICROORGANISMS
PROGRESS REPORT
REACTION INTERMEDIATES
SAVANNAH RIVER PLANT
SUBSURFACE ENVIRONMENTS
AROMATICS
AZAARENES
AZINES
AZOLES
CHEMICAL REACTIONS
DECOMPOSITION
DOCUMENT TYPES
NATIONAL ORGANIZATIONS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PYRIDINES
PYRROLES
US AEC
US DOE
US ERDA
US ORGANIZATIONS
550700* - Microbiology
550500 - Metabolism