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Proc Natl Acad Sci U S A. 2001 Aug 14;98(17):9883-8. Epub 2001 Jul 31.

Nucleotide sequence and predicted functions of the entire Sinorhizobium meliloti pSymA megaplasmid.

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  • 1Department of Biological Sciences, and Howard Hughes Medical Institute, Stanford University, CA 94305, USA.

Abstract

The symbiotic nitrogen-fixing soil bacterium Sinorhizobium meliloti contains three replicons: pSymA, pSymB, and the chromosome. We report here the complete 1,354,226-nt sequence of pSymA. In addition to a large fraction of the genes known to be specifically involved in symbiosis, pSymA contains genes likely to be involved in nitrogen and carbon metabolism, transport, stress, and resistance responses, and other functions that give S. meliloti an advantage in its specialized niche.

PMID:
11481432
[PubMed - indexed for MEDLINE]
PMCID:
PMC55547
Free PMC Article

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