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Activity of sulphur-oxidizing microorganisms in some Australian soils
The percentage oxidation of sulphur and the activity of Thiobacillus thiooxidans in a red-brown earth and a chernozem were followed at monthly intervals over a period of a year, but no obvious…
Nitrosation of Soil Organic Matter: I. Nature of Gases Evolved During Nitrous Acid Treatment of Lignins and Humic Substances1
Automated Gas Chromatograph/Mass Spectrometer for Routine Atmospheric Field Measurements of the CFC Replacement Compounds, the Hydrofluorocarbons and Hydrochlorofluorocarbons
An automated gas chromatograph/mass spectrometer is described for the routine field monitoring of the CFC replacement compounds, the hydrofluorocarbons (HFCs) and hydrochlorofluorocarbons (HCFCs).…
Factors influencing the fungistatic action of 8-hydroxyquinoline (oxine) and its metal complexes.
- B. Anderson, R. Swaby
- Chemistry, MedicineAustralian journal of scientific research. Ser. B…
- 1 August 1951
The fungistatic effect of oxine against AspergiUus niger is greatly reduced if the medium is first freed of cupric Cu, and toxicity increases with increasing amounts of Cu. The toxicity is overcome…
The relationship between micro-organisms and soil aggregation.
- R. Swaby
- Biology, MedicineJournal of general microbiology
- 1 May 1949
The temporary improvement of soil structure after the addition of organic materials can be partly explained by the action of microbes, but the permanent crumb structure of many soils must be due mainly to other causes.
Microbial production of sulphate and sulphide in some Australian soils
No significant correlations were found suggesting that any soil properties measured affected the occurrence or activities of organisms capable of producing sulphate or sulphide, and attempts were made to correlate soil properties, initial microbial counts, classes of micro-organisms detected and metabolic activities.
Bioassay of available trace metals from Australian soils
No evidence was obtained that microbial fixation of trace elements occurred in deficient soils; but most major and minor elements were fixed by microorganisms in very deficient, acid-washed, quartz crystals, with the exception of Ca, which was not significantly affected and of Fe and Zn, which were released by microbial activity from the minute amounts of contaminants present.
A simple macrorespirometer for studies in soil microbiology.
A simple macrorespirometer is described which is capable of providing a continuous record of oxygen consumption and an intermittent record of carbon-dioxide production by pure or mixed cultures of…
A comparison of methods for removing trace metals from microbiological media.
SUMMARY: Thirty-eight methods or modifications of methods for removing trace metals from nutrient media were tested, using Aspergillus niger as test organism to indicate deficiencies. The most marked…