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Appl Environ Microbiol. 1984 October; 48(4): 863-864
Copyright © 1984, American Society for Microbiology. All Rights Reserved.

Propionate Exchange Reactions in Methanogenic Ecosystems

David R. Boone

Biotechnology Department, Alberta Research Council, Edmonton, Alberta T6G 2C2, Canada

ABSTRACT

Propionate degradation was measured with [1-¹⁴C]- and [2-¹⁴C]propionate in an anaerobic digestor. When [1-¹⁴C]propionate was used, label disappeared more rapidly from the propionate pool than when [2-¹⁴C]propionate was used. This indicated that an exchange reaction involving the carboxyl group of propionate occurred. Labeled propionate added to digestor samples which were equilibrated with H₂ lost label from the carboxyl group but not from the methylene group.

Present address; School of Public Health, University of California, Los Angeles, CA 90024.

Contribution no. 1294 from the Alberta Research Council, Edmonton, Alberta, Canada.

This article has been cited by other articles:

• de Bok, F. A. M., Stams, A. J. M., Dijkema, C., Boone, D. R. (2001). Pathway of Propionate Oxidation by a Syntrophic Culture of Smithella propionica and Methanospirillum hungatei. Appl. Environ. Microbiol. 67: 1800-1804 [Abstract] [Full Text]