Endogenous mutagenesis in recombinant sulfolobus plasmids.

Abstract excerpt

Low rates of replication errors in chromosomal genes of Sulfolobus spp. demonstrate that these extreme thermoacidophiles can maintain genome integrity in environments with high temperature and low pH. In contrast to this genetic stability, we observed unusually frequent mutation of the β-D-glycosidase gene (lacS) of a shuttle plasmid (pJlacS) propagated in Sulfolobus acidocaldarius. The resulting Lac(-) mutants...

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