Mj. Barnett et al., Nucleotide sequence and predicted functions of the entire Sinorhizobium meliloti pSymA megaplasmid, P NAS US, 98(17), 2001, pp. 9883-9888
Citations number
68
Categorie Soggetti
Multidisciplinary
Journal title
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
The symbiotic nitrogen-fixing soil bacterium Sinorhizobium meliloti contain
s three replicons: pSymA, pSymB, and the chromosome. We report here the com
plete 1,354,226-nt sequence of pSymA. In addition to a large fraction of th
e genes known to be specifically involved in symbiosis, pSymA contains gene
s likely to be involved in nitrogen and carbon metabolism, transport, stres
s, and resistance responses, and other functions that give S. meliloti an a
dvantage in its specialized niche.