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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Cysteine auxotrophs of Salmonella typhimurium which grow without cysteine in a hydrogen/carbon dioxide atmosphere.

Cysteine auxotrophs of Salmonella typhimurium mutated in cysB, cysI or cysJ grew with sulphate as a sulphur source when incubated under a hydrogen/carbon dioxide atmosphere. Yields obtained under these conditions were equivalent to those characteristic of wild-type S. typhimurium. The same mutants failed to grow with sulphate as a sulphur source when incubated aerobically. Auxotrophs mutated in cysA, cysC, cysD, cysE, cysG and cysH required cysteine for growth under both incubation conditions. The results suggest that mutations in cysB (regulation of the several cys operons) and also cysI and cysJ (sulphite reductase activity) can be circumvented during anaerobic growth under hydrogen.[1]

References

  1. Cysteine auxotrophs of Salmonella typhimurium which grow without cysteine in a hydrogen/carbon dioxide atmosphere. Barrett, E.L., Chang, G.W. J. Gen. Microbiol. (1979) [Pubmed]
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