(1)
Johnson, L.; Steringa, M.; Koulman, A.; Christensen, M.; Johnson, R.; Voisey, C.; Bryan, G.; Lamont, I.; Rasmussen, S. Biosynthesis of an Extracellular Siderophore Is Essential for Maintenance of Mutualistic Endophyte-Grass Symbioses. NZGA R&P Series 2007, 13, 177-179.