Kostina NV, Stepanov AL, Umarov MM. 1994. Study of the complex of nitrous oxide-reducing microorganisms in the soil. Eurasian Soil Science 26: 81-87.
These authors extracted microorganisms from a range of soils apparently collected from various places in Russia and produced cultures of organisms capable of reducing nitrous oxide. The only nitrogen source in culture vials was N2O, and conditions were rendered anaerobic by flushing with argon gas.
Most cultures gradually lost their ability to reduce N2O, especially mixed-species cultures. A few pure strains were isolated that did not show this loss, and maintained high levels of activity in storage.
Pseudomonas spp. and Bacillus spp. contributed the vast majority of N2O-reducing activity in all soils, with other groups including Aeromonas spp., Micrococcus spp., Flavobacterium spp., Erwinia spp., and an organism identified as “similar to Corynebacterium” also showing some activity. Neither actinomycetes nor eukaryotes were found in any of the cultures capable of N2O-reduction, indicating this is a physiological process not possessed by these organisms.
This is an English translation of a paper that was probably originally in Russian: Pochvovedeniye 1993 25: 72-76.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment