Free-Living Heterotrophic Nitrogen-Fixing Bacteria Isolated from Fuel-Contaminated Antarctic Soils

Author:

Eckford Ruth1,Cook Fred D.2,Saul David3,Aislabie Jackie4,Foght Julia1

Affiliation:

1. Biological Sciences, University of Alberta, Edmonton, Alberta, Canada T6G 2E9

2. Renewable Resources, University of Alberta, Edmonton, Alberta, Canada T6G 2H1

3. School of Biological Sciences, University of Auckland, Auckland

4. Landcare Research, Hamilton, New Zealand

Abstract

ABSTRACT Five bacterial isolates enriched from fuel-contaminated Antarctic soils fixed nitrogen in the dark heterotrophically and nonsymbiotically. Two isolates utilized jet fuel vapors and volatile hydrocarbons for growth but not in N-deficient medium. Bacteria such as these may contribute to in situ biodegradation of hydrocarbons in Antarctic soils.

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

Reference27 articles.

1. Aislabie, J., J. Foght, and D. Saul. 2000. Aromatic hydrocarbon-degrading bacteria from soil near Scott Base, Antarctica. Polar Biol.23:183-188.

2. Aislabie, J., M. McLeod, and R. Fraser. 1998. Potential for biodegradation of hydrocarbons in soil from the Ross Dependency, Antarctica. Appl. Microbiol. Biotechnol.49:210-214.

3. Balks M. J. Kimble R. Paetzold J. Aislabie and I. Campbell. 2001. Effects of hydrocarbon contaminants on the temperature and moisture regimes of cryosols of the Ross Sea region Antarctica p. 33-39. In Collected proceedings 2nd International Conference on Contaminants in Freezing Soil. Scott Polar Research Institute Cambridge University Cambridge United Kingdom in association with Geotechnical Science Laboratories Carleton University Ottawa Canada.

4. Chan, Y.-K., W. L. Barraquio, and R. Knowles. 1994. N2-fixing pseudomonads and related soil bacteria. FEMS Microbiol. Rev.13:95-118.

5. Coty, V. F. 1967. Atmospheric nitrogen fixation by hydrocarbon-oxidizing bacteria. Biotechnol. Bioeng.9:25-32.

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