Rhizobium sp. strain NGR234 possesses a remarkable number of secretion systems.
Schmeisser C, Liesegang H, Krysciak D, Bakkou N, Le Quéré A, Wollherr A, Heinemeyer I, Morgenstern B, Pommerening-Röser A, Flores M, Palacios R, Brenner S, Gottschalk G, Schmitz RA, Broughton WJ, Perret X, Strittmatter AW, Streit WR.
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Appl Environ Microbiol. 2009 Jun;75(12):4035-45. doi: 10.1128/AEM.00515-09. Epub 2009 Apr 17.
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PMID: 19376903
Free PMC article.