Characterization of two new facultative methoantrophs
Two new facultative methane-oxidizing bacteria have been isolated from lake water enrichments. The organisms have been characterized in terms of colony types, growth characteristics, the guanine plus cytosine content of their deoxyribonucleic acid, thin sections, oxidation rates, and carbon assimilation pathways. Methane-grown cells of both organisms contained intracytoplasmic membranes similar to those described as type II in other methanotrophic bacteria. Both organisms assimilated methane by way of the isocitrate lyase-negative serine pathway for formaldehyde incorporation. It is proposed that both organisms be classified in the genus Methylobacterium as two new species, Methylobacterium ethanolicum and Methylobacterium hypolimneticum.
- Research Organization:
- Univ. of Washington, Seattle
- OSTI ID:
- 5842197
- Journal Information:
- Appl. Environ. Microbiol.; (United States), Vol. 40:2
- Country of Publication:
- United States
- Language:
- English
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