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[Utilization of different sulfur sources by propionic acid bacteria]
Mikrobiologiia
|November 1, 1983
Summary
Propionic bacteria, including Propionibacterium shermanii, can use various sulfur compounds like sulfite and elemental sulfur. Sulfate utilization by these bacteria is complex, involving both uptake and release during growth.
Area of Science:
- Microbiology
- Biochemistry
Background:
- Propionic bacteria are known for their metabolic diversity.
- Understanding their sulfur metabolism is crucial for various industrial and environmental applications.
Purpose of the Study:
- To investigate the capability of propionic bacteria to metabolize sulfur compounds with different oxidation states.
- To identify specific sulfur compounds utilized by Propionibacterium shermanii.
Main Methods:
- Culturing Propionibacterium shermanii in media supplemented with various sulfur compounds.
- Monitoring bacterial growth and analyzing the chemical forms of sulfur in the culture medium.
Main Results:
- Propionibacterium shermanii demonstrated the ability to utilize sulfite, thiosulfate, sulfide, and elemental sulfur as sulfur sources.
- Elemental sulfur was converted to sulfide during bacterial growth.
- Sulfate utilization by P. shermanii was characterized by an unusual pattern of alternating uptake and release.
Conclusions:
- Propionic bacteria possess a versatile sulfur metabolism, capable of utilizing a range of inorganic sulfur compounds.
- The unique sulfate metabolism of P. shermanii warrants further investigation.
- These findings contribute to the understanding of microbial sulfur cycling.
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