f Populations of Spore-forming Bacteria in an Acid Forest Soil, with Special Reference to Bacillus subtilis
- Authors: A. Siala*, I. R. Hill†, T. R. G. Gray
- Microbiology, March 1974 81: 183-190, doi: 10.1099/00221287-81-1-183
- Subject: Ecology
- Published Online:
The distribution of Bacillus subtilis in a pine-forest soil has been investigated by using the fluorescent-antibody technique and dilution plating. In the acid, mineral horizon of the soil, the organism occurred mainly in the vegetative condition, while in the alkaline, mineral horizon it was mostly present as spores. Within these soil horizons, the bulk of the vegetative bacteria was found on organic matter particles, but of those found on mineral particle surfaces, almost all were on cryptocrystalline quartz particles with iron oxide inclusions.
Present address: ICI Plant Protection, Bracknell, Berkshire.
Present address: Faculty of Science, University of Libya, Tripoli, Libya.
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