Detection of sulphate-reducing bacteria

S.6 Occurrence, significance and detection of sulphate-reducing bacteria... 

When starting liquid cultures for the detection of sulphate-reducing bacteria, a component group A flask is first inoculated and the flask is... 

Phosphorous trioxide, P4O6, is present in the atmosphere of Venus [34]. Spectroscopic molecules such as PH, PO, PN, PC and more recently HC P, have all been detected in interstellar space. Recent studies [36] have supported earlier views [37] that phosphorus may have originally been present on Earth in a reduced oxidation state, for example, as derivatives of phosphonic (phosphorous) acid H3PO3 rather than of phosphoric acid H3PO4. Recent studies have confirmed that condensed phosphates (which are needed for the production of evolutionary DNA) can be produced by oxidation of phosphonates or phosphinates [38]. The identification of sulphate-reducing bacteria (Chapter 11.7), also suggests a means by which P could have become fully oxidised during the course of planetary evolution. Natural phosphine gas, PH3, may also result from bioreduction processes (Chapter 4.4). 

Wieringa E. B. A., Overmann J., and Cypionka H. (2000) Detection of abundant sulphate-reducing bacteria in marine oxic sediment layers by a combined cultivation and molecular approach. Environ. Microbiol. 2, 417—427. 

For biofilm characterization the following parameters were obtained detection of nitrifying, sulphate-reducing and Sphingomonas bacteria by PCR (Polymerase Chain Reaction) and community restriction fingerprint by ARDRA (Amplified rDNA Restriction Analyses). 

---