Predominance of hydrogen-utilizing bacteria among N2-fixing bacteria in wetland rice roots
- 1 September 1982
- journal article
- research article
- Published by Canadian Science Publishing in Canadian Journal of Microbiology
- Vol. 28 (9) , 1051-1054
- https://doi.org/10.1139/m82-157
Abstract
Heterotrophic bacteria were isolated from wetland soil, rhizosphere soil, root and basal shoot of wetland rice, dryland soil, and root of dryland rice. The isolates were tested for N2-fixing activity and the ability to grow autotrophically under H2 + CO2 + O2. N2-fixing bacteria capable of autotrophic growth were found almost exclusively from the rhizosphere and the root of wetland rice. In another experiment, all N2-fixing bacteria isolated from wetland rice root had uptake hydrogenase activity. These findings indicate the predominance of hydrogen-utilizing bacteria among N2-fixing bacteria from wetland rice roots.This publication has 3 references indexed in Scilit:
- Population of Aerobic Heterotrophic Nitrogen-Fixing Bacteria Associated with Wetland and Dryland RiceApplied and Environmental Microbiology, 1982
- Autotrophic growth of H 2 -uptake-positive strains of Rhizobium japonicum in an atmosphere supplied with hydrogen gasProceedings of the National Academy of Sciences, 1979
- Field technique using the acetylene reduction method to assay nitrogenase activity and its association with the rice rhizospherePlant and Soil, 1977